Academic literature on the topic 'Endodontics'
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Journal articles on the topic "Endodontics"
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Abu Hasna, Amjad, Alana Barbosa Alves Pinto, Giovanna Bignoto Minhoto, Bruna Jordão Motta Corazza, Cláudio Antonio Talge Carvalho, and Carlos Henrique Ferrari. "Pictograph system for diagnosis making and data management in endodontics." Brazilian Dental Science 23, no. 4 (September 30, 2020): 6p. http://dx.doi.org/10.14295/bds.2020.v23i4.2056.
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ABSTRACTObjective: this questionnaire aimed to evaluate the approval of a new pictograph system for endodontic diagnosis by undergraduate and graduate students/endodontist instead of a conventional method. Methods: after a presentation to a total of 224 participants explaining the pictograph system, the participants (166 undergraduate students and 58 graduate students/endodontist) received a standardized questionnaire with three questions. The data were analyzed using the multprop macro basing on Tukey's test for multiple comparison with (P ? 0.05). The first question was to define the education level of the participants; the second question about which diagnosis method is preferred; and the third question about the intention of using one of the methods in the future. The questionnaire was realized in May 2019. The response rate was 97.7%. Results: the first question showed that 74.10% and 25.90% were undergraduate and graduate students/endodontist respectively. After statistical analysis there was no significant difference between the groups in the second and the third questions. In the second question (71.08% and 62.06%) of undergraduate and graduate student/endodontists respectively preferred the pictograph method over the conventional method. In the third question (60.24% and 51.72%) of undergraduate and graduate student/endodontists respectively showed interest in using the pictograph method in their professional career. Conclusion: the pictograph method in endodontic diagnosis is accepted by the majority of undergraduate and graduate students/endodontists. Training and experience affect the diagnosis making. KEYWORDSAdvanced dental education; Continuing dental education; Endodontics; Pictograph
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Adhikari, Bhawana, Sanjeeb Chaudhary, Bibek Khanal, Nisha Acharya, and Jwolan Khadka. "Knowledge, Attitude and Practice on Regenerative Endodontics among Endodontists of Nepal." MedS Alliance Journal of Medicine and Medical Sciences 2, no. 3 (August 20, 2022): 18–23. http://dx.doi.org/10.3126/mjmms.v2i3.47656.
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INTRODUCTION: Regenerative Endodontics is one of the most fascinating development in modern dentistry. Since Endodontists are the first providers of this type of dental treatment, it is essential to learn their knowledge, attitude and practice of these procedures. Aim: This online questionnaire-based study was conducted amongst Endodontists practicing in Nepal with the aim to learn their knowledge, attitude and practice of regenerative endodontic procedures. MATERIALS AND METHODS: A cross-sectional study was conducted among Endodontists in Nepal. In total 65 Endodontists participated in this study. The questionnaire was distributed to the participants using the available electronic measures. Descriptive statistical analyses were performed on the responses given by Endodontists using SPSS Statistical Software package (version 21.0). RESULTS: A total of 20 questions were included in this study. Out of the responses analyzed, 100% (n=65) had come across the term regenerative endodontics. Respondents had good knowledge about the sources of dental stem cells (87.3%, n=55). A high percentage (98.4%, n=62) of respondents strongly recommended regenerative therapy to be incorporated into dentistry. Among the participants of this study, 87.1% (n=54) had a belief that regenerative endodontic treatment could serve as the alternative treatment option to dental implant. CONCLUSIONS: The Endodontists practicing in Nepal had sound knowledge about regenerative endodontic procedures. They were enthusiastic in practicing regenerative endodontics and interested in stem cell therapy. It’s a high time to uplift the regenerative endodontic procedure from simple revascularization via blood clotting to more advanced procedure.
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Tkachenko, Oleksandr. "Guided endodontics by Niraj Kinariwala and Lakshman Samaranayake, editors. Cham, Switzerland: Sringer Nature; 2021." Journal of Endodontic Microsurgery 1 (May 7, 2022): 5. http://dx.doi.org/10.23999/jem.2022.1.2.
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Endodontic guides (synonyms: endoguides, endodontic templates, 3-dimensional endoguides) guarantee two things: minimal invasiveness of the procedure and high level accuracy. That is why two editors, Niraj Kinariwala and Lakshman Samaranayake, united another 18 contributors from totally 6 countries (Austria, Brazil, China, Denmark, Hungary, and India) bringing to the world Guided Endodontics. The textbook consists of 10 Chapters; all of them are dedicated to planning, manufacturing and application of all types of endodontic guides: (1) types depended upon their use in endodontic treatment (non-surgical and surgical guides), (2) types depended upon their support, and (3) types from classification of surgical endodontic templates. Perfect illustrations: computed tomography (CT), micro-CT data, virtual surgical planning, digital workflow, intraoperative images, and control X-rays immerse the reader in the smallest details of the guided treatment. Chapter 8, “Static Guided Approach in Surgical Endodontics” perfectly describes guided microscopic root-end resection using stereolithographic manufacturing what is extremely useful in modern practice. In summary, this textbook is a phenomenal chance for every endodontists to absorb all we need to know about state of the art principles and techniques of guided endodontics. I can honestly say that with profound knowledge and appropriate implementation of these techniques any practice limited to endodontics will reach the highest level of modern endodontic specialty.
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Patil, Pranjali Naresh, M. Robert Justin, Aditi Subhashchandra Sarda, Lalit Dattu Darade, Supriya Ramchandra Zanjad, and Rupesh Bowlekar. "Review on regenerative endodontics: Past concepts, current protocols and future strategies." IP Indian Journal of Conservative and Endodontics 6, no. 4 (December 15, 2021): 205–11. http://dx.doi.org/10.18231/j.ijce.2021.045.
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Till last few decades, a necrosed tooth with immature apex was an indication for apexogenesis. With advances in dentistry such as improved irrigation protocols, better visibility to the operating site and increased skills of endodontists, regenerative endodontic procedures have come into the limelight. The alongside research in tissue engineering also have been beneficial for researchers and endodontists to open new horizons in regenerative endodontics. This review paper involves the triad of tissue engineering, concepts of regenerative endodontics applied in past, current protocols according to American Association of Endodontists and future concepts of tooth tissue regenerations which are being researched.
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Suanhow, Foo, and Tawil Bill. "Future trends in endodontics." Journal of Applied Biotechnology & Bioengineering 11, no. 1 (January 18, 2024): 1–4. http://dx.doi.org/10.15406/jabb.2024.11.00350.
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Since the beginning of the endodontic specialty, we see new technologies constantly being developed to help the endodontist in improving root canal therapy techniques. I have investigated some of the newer materials and technology in the field of endodontics. These include cone beam, dynamic navigation, pulp regeneration, magnetic resonance imaging, pulse oximetry, membranes and bone grafts.
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Alrahabi, Mothanna, Muhammad Sohail Zafar, and Necdet Adanir. "Aspects of Clinical Malpractice in Endodontics." European Journal of Dentistry 13, no. 03 (July 2019): 450–58. http://dx.doi.org/10.1055/s-0039-1700767.
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AbstractThe clinical dentistry and endodontic procedures involve very technique-sensitive procedures, therefore exposing the operator to risks of causes not only damage to patients but also leads to malpractice. Among various disciplines of dentistry, endodontics-related cases witness the most frequently filed malpractice claims. This is due to the fact that the endodontic treatment procedures involve operative and surgical procedures, using a variety of medicaments and techniques. The endodontic procedural errors can be preoperative errors (such as incorrect diagnosis and misinterpretation), intraoperative errors including root canal and pulp chamber perforations, ledge formation leading to apical transportation or zipping, hypochlorite accidents, and fracture of instruments. More critically, failure to use rubber dam may result in inhalation or ingestion of endodontic instruments. Under such circumstances, the endodontist may have to face legal consequences. Due to the increased healthcare load and patients’ awareness, it is important to know the legal ramifications of adverse effects, failed restorations, or other complications, to avoid any legal ramifications of endodontic procedures and associated techniques. Therefore, precautions must be taken to prevent any postsurgical complications, patient complaints, and/or failures. For this purpose, the operator must consider ethical principles and adhere strictly to the standards of healthcare while performing the diagnosis and treatment. A referral toward a specialist or consultant endodontist is always an appreciable option and should be considered in the best interest of the patient. The aim of the article is to highlight various aspects of malpractice in clinical endodontics, and associated materials and challenges. In addition, commonly occurring operating errors during endodontic treatment, possible consequences, precautions, and management have been discussed.
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Decurcio, Daniel A., Mike R. Bueno, Julio A. Silva, Marco A. Zaiden Loureiro, Manoel Damião Sousa-Neto, and Carlos Estrela. "Digital Planning on Guided Endodontics Technology." Brazilian Dental Journal 32, no. 5 (September 2021): 23–33. http://dx.doi.org/10.1590/0103-6440202104740.
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Abstract The aim of this review is to discuss the digital planning and the use of guided technology in Endodontics. The complexity of the root canals anatomy and the challenges in the microorganism’s control represent risk factors for failure after the infected root canal’s treatment. Scientific improvements associated with technological advances have enabled better predictability of therapeutic procedures results. The development of efficient and modern devices provided safer root canal treatments, with shorter clinical visits and greater patient comfort. Digital endodontics incorporated different tools and developed its own, advancing even further in resolving complex cases. The faithful copy of the internal anatomy provided by the advancement of CBCT devices and software’s, associated with the digital resources of 3D planning and printing, enabled the advent of guided endodontics. This technique is used at different stages of endodontic treatment, with specific indications and greater result predictability. Therefore, this study critically reviewed the potential clinical application of this guided access technique, and the operative steps for its safe performance in managing complex endodontic cases. The main indications are accessing calcified root canals, performing endodontic surgeries in difficult access areas, removing fiberglass posts, and accessing teeth with developmental anomalies. In summary, guided endodontics has been a precise strategy, effective, safe, and clinically applicable. This procedure represents incorporating technological resources and digital planning in the Endodontist clinical practice, increasing predictability to complex cases.
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Iqbal, Azhar, Thani Al Sharari, Osama Khattak, Farooq Ahmad Chaudhry, Alzarea K. Bader, Muhammad Mudassar Saleem, Rakhi Issrani, Ibrahem T. Almaktoom, Raghad Fayez H. Albalawi, and Ebtehal Dhyab M. Alserhani. "Guided Endodontic Surgery: A Narrative Review." Medicina 59, no. 4 (March 29, 2023): 678. http://dx.doi.org/10.3390/medicina59040678.
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Background and objectives: Endodontic surgery has evolved over the last two decades. The use of state-of-the-art guided endodontic surgical procedures produces a predictable outcome in the healing of lesions of endodontic origin. The main objective of this review paper is to define and characterize guided surgical endodontics as well as its benefits and drawbacks by reviewing the most recent relevant scientific literature. Methods: A literature search was conducted using multiple databases comprising of MEDLINE (via PubMed), EMBASE, and Web of Science. The terms used for the search were ‘guided endodontics’, ‘surgical endodontics’, and ‘endodontic microsurgery’. Results: In total, 1152 articles were obtained from the analysis of the databases. Unrelated articles from the available full text of 388 articles were excluded. A total of 45 studies were finally included in the review. Conclusions: Surgical-guided endodontics is a relatively new area of study that is still maturing. It has many applications such as root canal access and localization, microsurgical endodontics, endodontic retreatment, and glass fiber post removal. Additionally, it does not matter how experienced the operator is; the procedure can be completed for the patient in less time and provides greater accuracy and safety than conventional endodontics.
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Boreak, Nezar, Alshaymaa Hakami, Shaker Hakami, Hussain Nahari, Maan Alhakami, Ahmad Alrajhi, Mohammed Al Dira, Hamood Mahdali, Abdulmajeed Kariri, and Fatima Sultana. "A Systematic Review of Traditional Radiology: Conservative Therapy in Endodontics." Saudi Journal of Oral and Dental Research 7, no. 12 (December 6, 2022): 317–27. http://dx.doi.org/10.36348/sjodr.2022.v07i12.001.
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Introduction: Conservative endodontics advocates sparingly altering standard procedures in order to preserve tooth structure if possible. Every bit of structure that is saved is a benefit, according to conservative endodontics. As a result, conservative endodontics may be performed by both endodontists and general dentists. Aim and Objective: The comprehensive evaluation of conventional radiology employed in endodontic conservative therapy has as its primary goal the endodontic conservative therapy. Methodology: The electronic databases that underwent rigorous individual searches were Embase, Google Scholar, LILACS and MEDLINE using the Ebsco search engine, PubMed, Science Direct, Scopus, and Web of Science. Results: Conventional radiography (CR) is without a doubt the most widely used imaging method for evaluating root canals due to its availability, affordability, and convenience. Digital Radiography (DR) has gained popularity as a replacement for CR because it offers better image quality and enables the dentist to do radiographic exams with less radiation exposure. Conclusion: For root canal treatment, radiographic diagnostic value is essential. Additionally, this technique is utilized to find procedural errors, resorptive defects, and fractures. Radiographic examinations are important because they provide details on how difficult the therapy is.
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Broome, Joseph L. "Main Non-Clinical Factors Influencing Endodontic Referral." Primary Dental Journal 5, no. 3 (August 2016): 64–69. http://dx.doi.org/10.1177/205016841600500307.
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Specialisation in endodontics allows for endodontic referrals by general dental practitioner (GDPs) and the study of factors influencing referral. These centre on a triad consisting of the referral process, non-clinical and clinical reasons for referral. Many non-clinical factors have been identified which may influence the referral process to the endodontist. A systematic review study was undertaken into the main non-clinical factors influencing endodontic referral by general dental practitioners to endodontists. Such awareness and appreciation of these factors benefits the commercial aspect of the referral practice, increases access by reducing barriers to care, and ultimately improves patient care. A literature search yielded three papers that met the eligibility criteria. All studies included were cross sectional survey studies completed by GDPs. The main non-clinical factors seen from the studies include: • Availability. • Personality, relationships and communication. • Location. Availability presented as a common thread throughout all the studies. In conclusion, endodontic referral is multifactorial and influenced by several factors, that are not related to the nature of the endodontic disease, and this is a dynamic process. Due to the lack of high level studies, and limitations of the available studies, further research is suggested into relevant area of non-clinical endodontic factors for endodontic referral and thus allowing for further analysis.
Dissertations / Theses on the topic "Endodontics"
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Bruzadelli, Renata Ribeiro. "Avaliação da efetividade do hipoclorito de sodio 5,25% e clorexidina gel 2% na remoção de pre-dentina em areas não instrumentadas de canais radiculares de incisivos inferiores : estudo in vitro." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289053.
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Orientador: Francisco Jose de Souza FilhoTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: O objetivo deste trabalho foi avaliar a eficácia do hipoclorito de sódio 5,25% e clorexidina gel 2% na remoção de pré-dentina nos terços cervical, médio e apical do canal radicular de incisivos inferiores humanos com polpas vitais e achatamento mésio-distal. Para isto, os canais foram instrumentados apenas na parede vestibular, preservando-se a superfície lingual para a verificação da ação de remoção das substâncias químicas auxiliares. Durante o preparo químico-mecânico, o volume e a freqüência da irrigação foram padronizados. Após a instrumentação, as raízes passaram por processamento histológico e foram analisadas em microscopia ótica para a verificação da presença e quantidade de pré-dentina remanescente na superfície lingual. A comparação estatística, realizada pelos Testes de Diferença de Proporções (P<0,01), mostrou que nos terços cervical, médio e apical, a remoção de pré-dentina proporcionada pela solução de hipoclorito de sódio 5,25% foi superior à clorexidina gel 2% e ao controle com soro fisiológico. Quando utilizada a mesma substância química, não houve diferença estatística entre os terços analisados. Concluímos que a solução de hipoclorito de sódio 5,25% é superior à clorexidina gel 2% e ao controle com soro fisiológico, quanto à remoção de pré-dentina, nas áreas não instrumentadas de canais achatados, nos terços analisados. Nenhuma substância química testada é capaz de remover completamente a pré-dentina nas áreas mais profundas das reentrâncias, em todas as amostras analisadas. Nas áreas instrumentadas e irrigadas, ocorre sempre a completa remoção de pré-dentina das paredes do canal radicular, com quaisquer das substâncias
Abstract: The aim of this study was to evaluate the predentin removal capacity of two substances used as irrigating substances in Endodontics ¿ 5.25% sodium hypochlorite and 2% chlorhexidine gel - on the apical, middle and cervical thirds from human mandibular incisors with vital pulps and mesio-distal flattened root canals. During the biomechanical preparation, volume and frequency of irrigants were standardizated. The instruments were used on the vestibular wall off the root canals and the removal capacity of the substances were studied in the lingual area. After instrumentation, and histological processing, the cross sections were examinated with an optic microscope in order to verify the presence and quantity of predentine on the lingual pole. The statistical analyses (P< 0,01) showed that 5.25% sodium hypochlorite presented higher capacity in removing predentin than 2% chlorhexidine gel and fisiologic solution in all thirds. CONCLUSIONS: 5.25% sodium hypochorite presented higher capacity in removing predentin than 2% chlorhexidine gel and fisiologic solution control. None of the substances completely removed all predentin in all samples. There was no difference on the root canal cleaning when used the same irrigant in the different thirds. In the areas touched by the endodontic instruments, the predentin was removed from the canal walls with all of the substances
Doutorado
Endodontia
Doutor em Clínica Odontológica
2
Cintra, Luciano Tavares Angelo. "Analise histologica e radiografica da influencia de substancias quimicas auxiliares e medicação intracanal no processo de reparo periapical em dentes de cães." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/290477.
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Orientador: Caio Cezar Randi FerrazTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: O objetivo do presente estudo foi observar por meio da microscopia óptica de luz, o efeito de diferentes substâncias químicas auxiliares empregadas durante o preparo químico-mecânico, no processo de reparo periapical, além do efeito do uso de uma medicação intracanal entre as sessões. Para tanto, 110 raízes de 5 cães adultos jovens, com polpa necrótica e associadas à lesão periapical crônica, foram instrumentadas endodonticamente através de técnica padronizada, variando-se as substâncias químicas auxiliares: soro fisiológico; base gel natrosol; hipoclorito de sódio 2,5% (NaOCl); clorexidina gel 2% (CG); clorexidina líquida 2% (CL). Concluído o preparo químico-mecânico, 55 raízes foram obturadas imediatamente (sessão única) e 55 raízes receberam um curativo de hidróxido de cálcio [Ca(O H)2], iodofórmio e soro fisiológico. Os grupos de duas sessões foram obturados após 14 dias da colocação da medicação intracanal.c Após um período de 270 dias da obturação dos canais radiculares, os animais foram sacrificados e as peças processadas laboratorialmente. Os cortes teciduais foram corados em H.E. ou pela coloração de Brown e Breen e receberam escores levando-se em consideração critérios de análise microscópica quanto às características do infiltrado inflamatório e condições de reparo periapical, previamente estabelecidos. Os valores obtidos foram submetidos ao teste de Kruskal-Wallis e Dunn, com nível de significância de 5%. Os resultados demonstraram que o uso da CG e NaOCl como substâncias químicas auxiliares, associados ou não ao uso de medicação intracanal, proporcionaram resultados semelhantes e superiores aos demais grupos, tanto em intensidade do infiltrado inflamatório quanto às condições do reparo periapical
Abstract: The goal of the present study was to observe through optic microscopy, the effect of different auxiliary chemical substances, used during the chemomechanical preparation, and of an intracanal dressing in the periapical healing process. Hundred-ten dental roots from 5 young adult dogs, with necrotic pulp associated to a chronic periapical lesion were endodontically instrumented with a standardized technique, just varying the auxiliary chemical substances: sterile saline (negative control 1); gel base natrosol (negative control 2); 2,5% Sodium hypochlorite (NaOCl); 2% chlorhexidine gel (CG); 2% chlorhexidine liquid (CL). After the chemo-mechanical preparation, 55 roots were immediately filled (singlevisit) and 55 roots received a calcium hydroxide dressing [Ca (OH)2]. The specimens from the multiple-visit groups were filled after 14 days. Past 270 days from the filling, the animals were sacrificed and the specimens were histologically processed. The slides were stained on H.E. or Brown and Breen techniques and were microscopically assessed using previously established criteria. The data were submitted to the Kruskal-Wallis and Dunn, with 5% as significance level. The results demonstrated that the use of CG and NaOCl as auxiliary chemical substances, associated or not to intracanal medication, provided similar results, either in inflammatory infiltrated intensity or in periapical healing
Doutorado
Endodontia
Doutor em Clínica Odontológica
3
Signoretti, Fernanda Graziela Correa 1979. "Avaliação in vitro da influencia da clorexidina 2% gel no pH, liberação de calcio e ação sobre endotoxinas do hidroxido de calcio." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288784.
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Orientadores: Rogerio de Castilho Jacinto, Brenda Paula Figueiredo de Almeida GomesDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: O presente estudo avaliou a influência da clorexidina 2% gel (CLX) sobre as propriedades químicas como pH e liberação de íons cálcio do hidróxido de cálcio, e sobre a capacidade de redução de endotoxinas desta medicação intracanal. A liberação do cálcio do Ca(OH)2 + soro ou associado a CLX foi verificada pela espectrofotometria por absorção atômica e o pH através do emprego de um peagâmetro. As mensurações foram realizadas nos períodos experimentais de 24 horas, 7, 15 e 30 dias. Para a quantificação de endotoxinas foram utilizados dentes humanos, previamente preparados, contaminados, preenchidos com as medicações. Os medicamentos foram inseridos dentro dos canais de 30 dentes (GI Ca(OH)2 + soro, GII Ca(OH)2 + CLX, GIII CLX), e após permanecerem por 14 dias foram removidos com irrigação abundante. Este lavado foi submetido à quantificação da endotoxina remanescente através do teste cromogênico quantitativo QLC-1000. Análise estatística foi realizada com os testes ANOVA e Tuckey (p<0.05). Os grupos do Ca(OH)2 associado ou não à CLX não diferiram significativamente no período de 24 horas, 7 e 30 dias em relação à liberação de cálcio. Entretanto no período de 15 dias o Ca(OH)2 + soro fisiológico liberou menos cálcio do que quando estava associado à clorexidina 2% gel. Nestes mesmos grupos ocorreu aumento significativo de 24 horas para 7 dias. Entretanto no período de 15 dias houve uma queda do Ca(OH)2+ soro. Com relação ao pH, os grupos do Ca(OH)2 associado ou não à CLX não apresentaram diferença significativa estatisticamente entre si nos intervalos testados, mantendo um pH alcalino (p>0.05). Os maiores valores de pH foram observados após 30 dias para o Ca(OH)2 + soro. Os valores mais baixos de pH foram apresentados pela clorexidina 2% gel quando testada sozinha, em todos os períodos. Um aumento significativo no pH foi observado no intervalo de 24 horas e 7 dias, tanto para o Ca(OH)2 + soro quanto para Ca(OH)2 + CLX. A maior redução de endotoxinas foi observada no grupo da clorexidina 2% gel (91,63%), seguida de sua associação com o Ca(OH)2 (88,76%) e depois o Ca(OH)2 + soro fisiológico (82,13%). Não houve diferença estatística entre a clorexidina 2% gel e sua associação com o hidróxido de cálcio, quanto à redução da quantidade de endotoxinas dentro do canal radicular. Concluiu-se que a clorexidina 2% gel não interferiu no pH e liberação de íons cálcio do hidróxido de cálcio quando em associação com este. Além disso, melhorou a capacidade do hidróxido de cálcio em reduzir o conteúdo de endotoxinas dos canais radiculares in vitro.
Abstract: The aim of the present study was to evaluate the influence of 2% chlorhexidine gel (CHX) on chemical properties of calcium hydroxide and on its ability of reducing endotoxic content of root canals when used as intracanal medicament. The amount of calcium released from the pastes was assessed by atomic absorbance spectophotometry and the pH was verified in pHmeter. The tested periods were 24 hours and 7, 15 and 30 days. For the endotoxin quantification assay, single rooted teeth were previously inoculated with endotoxins and then with intracanal medication. The medicaments were placed inside the root canal of 30 teeth, (GI - Ca(OH)2 + 0.9% saline solution, GII - Ca(OH)2 + CHX and GIII - CHX), and were removed after 14 days, with copiously irrigation. The removed solution was submitted to the chromogenic quantitative endotoxin test QCL-1000 Statistical analysis was performed with ANOVA and Tuckey Test (p<0.05). For calcium release analysis there was no statistical difference among the groups with Ca(OH)2 associated or not with CHX in the periods of 24 hours, 7 days and 30 days. However, after 15 days, lower values were observed for Ca(OH)2+ saline solution. In the groups that contained calcium hydroxide associated or not with CHX, an increase in ion release was observed from 24h to 7 days. However there was a decrease in the period of 15 days for the Ca(OH)2+ saline solution. An alkaline pH was observed in all groups that contained calcium hydroxide (p>0.05). The highest pH values were observed after 30 days for the association between Ca(OH)2 + saline solution. The lowest values of pH were observed for 2% chlorhexidine gel, in all periods. A higher increase of pH was stated between 24 h and 7 days for Ca(OH)2+ saline solution and Ca(OH)2+ CHX, and remained unaltered until the end of the experiment for both pastes. A higher reduction in the endotoxin content was observed in the CHX group (91.63%), followed by Ca(OH)2+ CHX (88,76%) and Ca(OH)2 + saline solution (82.13%). There were no statistical difference between 2% chlorhexidine gel and its association with calcium hydroxide over the endotoxin content reduction inside the root canal. According to the results, it can be concluded that 2% chlorhexidine gel did not interfere in the chemical properties of calcium hydroxide. Moreover, chlorhexidine was also able to improve calcium hydroxide properties for reducing the endotoxic content of root canals in vitro.
Mestrado
Endodontia
Mestre em Clínica Odontológica
4
Berger, Carlos Roberto. "Analise da composição inorganica e da liberação de formaldeido apos a manipulação de cimentos endonticos." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288973.
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Orientador: Francisco Jose Souza FilhoTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: Esse estudo avaliou a composição química da parte inorgânica e a presença de formaldeído em cimentos endodônticos indicados para obturação do sistema de canais radiculares. Sete cimentos endodônticos foram escolhidos: quatro a base de óxido de zinco e eugenol (Targer Canal Sealer - Konne; Endo Fill - Dentsply; Endométhasone N - Septodont e; Pulp Canal Sealer EWT - Kerr); dois a base de agregado trióxido mineral (MTA) (Endo CPM Sealer - EGEO Dental e Obtura - Ângelus) e; um a base de resina/hidróxido de cálcio (Sealer 26, Dentsply). Todos os materiais foram manipulados de acordo com as recomendações de cada um dos fabricantes e inseridos em um porta-amostra de 5 cm de diâmetro e 0,5 cm de altura. Após tomar presa foram analisados através de dois métodos: Difratometria de Raios X, para a análise da parte inorgânica dacomposição química dos cimentos e Cromatografia, para análise da presença de formaldeído. Os resultados demonstraram que: todos os cimentos a base de óxido de zinco e eugenol apresentam óxido de zinco em altas concentrações. Os cimentos Target Canal Sealer e Endo fill, apresentam também na sua composição sulfato de bário e carbonato de bismuto. O cimento Endométhasone N apresentou apenas sulfato de bário e o Pulp Canal Sealer, prata metálica. Já o cimento a base de resina/hidróxido de cálcio, Sealer 26, apresenta óxido de bismuto, hidróxido de cálcio, dióxido de titânio e óxido de ferro. Os dois cimentos a base de MTA testados, Endo CPM Sealer e Obtura, apresentaram basicamente, silicato de cálcio. Componentes tais como: sulfato de bário e carbonato de cálcio foram encontrados no Endo CPM Sealer e hidróxido de cálcio e silicato de magnésio foram encontrados no Obtura. Em relação à presença de formaldeído, todos os materiais testados apresentaram formaldeído após a manipulação. Com base nestes dados, pode-se concluir que: 1) Não houve uma coincidência entre a composição divulgada pelo fabricante e a observada experimentalmente através da Difratometria de Raios X. Exceção a este são os cimentos a base de MTA; 2) apesar de nenhum fabricante indicar a presença de formaldeído na composição do material, este composto foi verificado em todos os cimentos testados, após manipulação.
Abstract: This study evaluated chemical composition (inorganic) and formaldehyde presence in root-canal sealers. Seven root-canal sealers were chosen: four based-zinc-oxide-eugenol (ZOE) (Targer Canal Sealer, Konne; Endo Fill, Dentsply; Endométhasone N, Septodont and; Pulp Canal Sealer, Kerr); two based-mineral trioxide aggregate (MTA) (Endo CPM Sealer, EGEO Dental and Obtura, Ângelus) and; one based-resin/calcium hydroxide (Sealer 26, Dentsply). All materials were mixed according to the manufacturer's instructions and inserted in one matrix (5 cm diameter and 0.5 cm thickness. X-Ray Powder Diffraction and Chromatography was performed after freshly mixed, for chemical composition and presence of formaldehyde, respectively. The results showed that: all ZOE materials presented higher concentrations of zinc-oxide. Target Canal Sealer and Endo fill based-OZE cements, showed barium sulfate and bismuth carbonate in the composition. Endométhasone N cement presented only barium sulfate and Pulp Canal Sealer, metal silver. Bismuth oxide, calcium hydroxide, titanium dioxide and iron oxide were showed in the based-resin/calcium hydroxide (Sealer 26). Both of MTA cements tested, Endo CPM Sealer and Obtura, presented calcium silicate. However, barium sulfate and calcium carbonate was found in the Endo CPM Sealer and magnesium silicate and calcium hydroxide in the Obtura. Regarding to the formaldehyde, all root-canal sealers tested showed this substance after took mixed. It was concluded that: 1) there was a great difference among present results and manufacturer's composition for almost all materials. This was notobserved for MTA root-canal sealers; 2) although no manufacturer has indicated the formaldehyde presence in their material composition, this component was verified in all materials tested.
Doutorado
Endodontia
Doutor em Clínica Odontológica
5
Aragão, Egas Moniz de. "Avaliação da forma do forame apical apos sua patencia e ampliação com instrumentos endodonticos." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289039.
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Orientador: Francisco Jose de Souza FilhoTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: Para realizar a patência e ampliação dos forames apicais, com o objetivo de avaliar a evolução de sua forma, foi realizada a instrumentação dos canais de 48 dentes, 23 incisivos inferiores e 25 caninos, superiores ou inferiores. A instrumentação foi executada através de acesso radicular com brocas de Gates-Glidden, ampliação coroa-ápice com instrumentos manuais e, trabalhando 1mm além do comprimento do canal, ampliação do forame apical com três ou cinco limas tipo K. Os forames apicais foram avaliados ao microscópio eletrônico de varredura, antes da instrumentação, depois da ampliação com três limas e, numa terceira análise, após o uso de mais dois instrumentos - totalizando cinco limas. Nas fotomicrografias produzidas com 50, 100 e 150 aumentos, com o auxílio de um programa de análise de imagens, foram medidos oito raios da imagem de cada forame apical, a partir do centro de seu maior diâmetro. A divisão do desvio padrão destas medidas pela média refletiu numericamente a regularidade dos forames. A análise destes valores indicou que os forames apicais foram regularizados pela ampliação com três limas e com cinco limas, em ambas as situações, com diferença estatisticamente significativa para a forma inicial. A análise destes valores, dividindo os 48 dentes em grupos, indicou: a) haver maior regularização do forame apical em canais com menor curvatura radicular, com diferença estatisticamente significativa, quando comparados ao grupo com curvatura radicular moderada; e b) ocorrer o melhor resultado na regularização quando instrumentados os canais sem curva apical, com diferença estatisticamente significativa, quando comparados aos canais que apresentavam curva em seu final, fato observado mesmo em raízes retas. A ampliação dos forames apicais se mostrou capaz de regularizar sua forma, com melhor desempenho em canais menos curvos, tornando-os mais circulares, exceção feita aos dentes cujos canais apresentavam curva apical, nos quais houve deformação dos forames
Abstract: The resulting shape of the apical foramens of 48 teeth - 23 lower incisors and 25 upper or lower cuspids - was evaluated after enlargement with 3 or 5 K-type files in root canal treatment performed with radicular access before the crown-down instrumentation technique and followed by serial instrumentation of the canal, with the file going beyond the apical foramen, so as to enlarge it. The apical foramens of each one of the teeth were evaluated with scanning electron microscope, before the instrumentation, after the enlargement with the first apical file and two other instruments, plus a third assessment after the use of two more instruments - totaling four files in addition to the initial anatomical file. In the photomicrographs, 100x and 150x magnification, eight radiuses of each apical foramen were measured with the help of an image analysis software from the center of their largest diameter. The division of the standard deviation of those measurements by the average reflects the regularity of the foramens in numerical terms. The analysis of the numbers indicated that the apical foramens were evened by the enlargement with 3 and 5 files, in both cases with statistically significant difference from the original shape. Such analysis, dividing the 48 teeth into groups, showed: a) greater evenness of the apical foramen in canals with less pronounced root curvature, with statistically significant difference when compared to the moderate curvature group; and, b) better result in teeth with no root canal apical curvature, with statistically significant difference, when compared to teeth with root canal apical curvature, a fact observed even in straight roots. The enlargement of apical foramens was proven to even their shape, with better result in less curved canals, rendering them more circular, with the exception of teeth with canals having apical curvature, in which the foramens suffered deformation
Doutorado
Endodontia
Doutor em Clínica Odontológica
6
Campos, Gabriel Rocha 1978. "Avaliação do comportamento dos tecidos periapicais de cães com lesão periapical após tratamento endodôntico com diferentes substâncias químicas, ampliação e obturação intencional do forame." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289064.
Full textAbstract:
Orientador: Francisco José de Souza FilhoTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: O objetivo do presente estudo foi avaliar o efeito da ampliação foraminal e extrusão intencional de cimento Endomethasone no processo de reparo periapical, além do efeito da ação antimicrobiana de duas substâncias químicas auxiliares utilizadas durante preparo químico-mecânico. Para tanto, 20 raízes de cães adultos jovens, com polpa necrótica e associadas à lesão periapical crônica, foram preparadas endodonticamente com ampliação foraminal e variando-se a substâncias químicas auxiliares: hipoclorito de sódio 2,5% (NaOCl) e clorexidina gel 2% (CG). Todos os canais radiculares foram obturados em sessão única e com extravasamento intencional de cimento para a região periapical. Coletas para análise microbiológica foram realizadas para avaliar o nível de contaminação bacteriana antes e imediatamente após o preparo químico-mecânico. Após um período de 180 dias da obturação dos canais radiculares, os animais foram sacrificados e as peças processadas laboratorialmente para análise histopatológica em H.E. e Brown e Breen. Os espécimes foram avaliados quanto às características do infiltrado inflamatório e condições de reparo periapical. Após aplicado teste estatístico de Wilcoxon os resultados mostraram uma redução significativa para a contagem das Unidades formadoras de colônias (UFC) após o preparo químico-mecânico (p = 0,4427), sem diferenças estatísticas significantes entre as substâncias químicas utilizadas NaOCl 2,5% (p = 0,0051) e CG (p = 0,0244). A análise histopatológica mostrou que áreas de reabsorção foram reparadas por neoformação cementária e ao redor do cimento extravasado no ligamento periodontal a reação inflamatória do tipo crônica persistiu. As substâncias químicas utilizadas são antimicrobianos efetivos durante o preparo químico-mecânico e o reparo periapical ocorreu por deposição de cemento ou por tecido conjuntivo fibroso encapsulando o cimento obturador extravasado
Abstract: The aim of the current study is to evaluate the effect of amplification of apical foramen and intentional extrusion with Endomethasone sealer in the periapical repair process, in addition to the effect of the antimicrobial action of two auxiliary chemical substances used during the chemical-mechanical preparation. A total of 20 roots of young adult dogs were used, with pulp necrosis and associated to the chronic periapical lesion, prepared endodontically with amplification of apical foramen and varying auxiliary chemical substances: sodium hypochlorite 2.5% (NaOCL) and chlorhexidine gel 2% (CG). All root canals were obturated in a single session, and with intentional extravasation of the sealer to the periapical region. Sampling for microbiological analysis was made in order to evaluate the level of bacterial contamination before and immediately after the chemical-mechanical preparation. After 180 days of obturation of the root canals the animals were euthanized and the parts were processed in lab for histopathological analysis in H.E. and Brown and Brenn. The specimens were evaluated for the characteristics of the inflammatory infiltrate and the periapical repair conditions. After applying the statistical test of Wilcoxon, the results showed a significant reduction for counting the colony-forming units (CFU) after the chemical-mechanical preparation (p = 0.4427), without significant statistical differences between the chemical substances used, NaOCl2.5% (p = 0.0051) and CG (p = 0.0244). The histopathological analysis showed that the reabsorption areas were repaired by cement neoformation and around the cement extravasated in the periodontal ligament the chronic-type inflammatory reaction persisted. The chemical substances used are antimicrobials effective during the chemical-mechanical preparation, and the periapical repair occurred by cement deposition or by fibrous conjunctive tissue encapsulating the extravasated obturator cement
Doutorado
Endodontia
Doutor em Clínica Odontológica
7
Câmara, Alexandre Sandri [UNESP]. "Avaliação das alterações geométricas e dimensionais dos instrumentos de NiTi do sistema ProTaper para o sistema ProTaper universal e o efeito destas sobre a flexibilidade e a resistência torcional." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/101655.
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camara_as_dr_arafo.pdf: 5289887 bytes, checksum: 3a5ed5f15b899e42e09e2c3b3c5aa9f3 (MD5)Universidade Estadual Paulista (UNESP)
O presente trabalho se propôs a avaliar as alterações geométricas e dimensionais dos instrumentos de NiTi do sistema ProTaper Universal em relação ao sistema ProTaper, bem como o efeito destas sobre a flexibilidade e a resistência à torção dos instrumentos. Um total de 298 instrumentos foram empregados neste estudo. Inicialmente, 12 instrumentos de cada tipo dos dois sistemas foram submetidos a uma caracterização geométrica e dimensional por microscopia óptica. Foram avaliados os parâmetros ângulo, comprimento e diâmetro de ponta, comprimento de cada pitch ao longo das hastes e diâmetro do instrumento a cada milímetro da ponta. Além disso, a área da secção transversal destes instrumentos a 3mm a partir da ponta foi determinada em imagens obtidas por microscopia eletrônica de varredura, usando 01 instrumento de cada formato. Após isto, todos os instrumentos foram aleatoriamente divididos em 4 grupos distintos: Grupo 1 contendo 60 instrumentos ProTaper S1, S2, F1, F2 e F3, sendo 12 unidades de cada formato para os ensaios de torção; Grupo 2 contendo 60 instrumentos ProTaper S1, S2, F1, F2 e F3, sendo 12 unidades de cada formato para os ensaios de flexibilidade; Grupo 3 contendo 84 instrumentos ProTaper Universal S1, S2, F1, F2, F3, F4 e F5, sendo 12 unidades de cada formato para os ensaios de torção; Grupo 4 contendo 84 instrumentos ProTaper S1, S2, F1, F2, F3, F4 e F5, sendo 12 unidades de cada formato para os ensaios de flexibilidade. Tais ensaios de torção e flexibilidade foram executados de acordo com a especificação ISO 3630-1 em um dispositivo de bancada para testes utilizando um programa para aquisição e processamento dos dados especialmente desenvolvido para este fim. Os valores para torque máximo, deflexão angular até a fratura e momento de dobramento foram analisados estatisticamente pelo teste...
The present study has proposed to evaluate the instruments structural changes from NiTi ProTaper System to NiTi ProTaper Universal System as well this effect over torsional resistance and flexibility. It was used a total amount of 298 instruments. At the beginning, 12 instruments of each size from both systems were analyzed dimensional and geometrically by optical microscopy under parameters of angle, length and tip diameter, pitch’s length along the blade and instrument’s diameter from tip until the end of the active part. Besides, one sample of each size had its 3-mm from the tip’s cross sectional area calculated under SEM images. After that, all the instruments were randomly divided into 4 different groups: Group 1 having 60 ProTaper instruments inside (S1, S2, F1, F2 and F3),12 samples from each size, to be submitted to torsion test; Group 2 having 60 ProTaper instruments inside (S1, S2, F1, F2 and F3),12 samples from each size, to be submitted to bending test; Group 3 having 84 ProTaper Universal instruments inside (S1, S2, F1, F2, F3, F4 and F5),12 samples from each size, to be submitted to torsion test; Group 4 having 84 ProTaper instruments inside (S1, S2, F1, F2, F3, F4 and F5),12 samples from each size, to be submitted to bending test. These torsion and bending tests were performed using a bench test device connected with a software to acquire and process data specially developed to this purpose, according to ISO 3630-1. Maximum torque, angular deflection until fracture and bending moment values were statistically analysed using Student’s t test. The results have shown that ProTaper and ProTaper Universal system’s instruments presented good geometric standardization and acceptable surface features, however differences were detected among the systems. The maximum torque and the bending moment at 45º. were higher for instruments... (Complete abstract click electronic access below)
8
Jorge, Érica Gouveia. "Análise radiográfica, tomográfica e microscópica do desenvolvimento da lesão periapical em dentes de cães /." Araraquara : [s.n.], 2008. http://hdl.handle.net/11449/90415.
Full textAbstract:
Orientador: Mário Tanomaru FilhoBanca: Clóvis Monteiro Bramante
Banca: Marcelo Gonçalves
Resumo: O objetivo deste estudo foi a avaliação radiográfica, tomográfica e microscópica do desenvolvimento da lesão periapical induzida em dentes de cães. Foram utilizados pré-molares de 4 cães, os quais tiveram seus canais radiculares expostos ao meio bucal por 7 dias para contaminação e posteriormente selados por: GI- 7 dias, GII- 15 dias, GIII- 30 dias e GIV- 60 dias. No período inicial e nos períodos experimentais foram realizadas radiografias padronizadas e ao final dos períodos tomografias para avaliação da região periapical. Após a morte dos animais foi efetuada o processamento histopatológico dos tecidos periapicais. As radiografias periapicais foram digitalizadas e a área de reabsorção óssea mensurada. As tomografias foram avaliadas por meio de escores baseados na evolução da reabsorção óssea periapical. A avaliação histopatológica foi realizada de acordo com os seguintes parâmetros: reabsorção cementária apical e óssea periapical, intensidade e extensão do infiltrado inflamatório. Os resultados radiográficos foram submetidos à ANOVA e ao teste de Tukey (α=0,05) e os tomográficos e histológicos ao teste de Kruskal-Wallis e Dunn (α=0,05). A avaliação radiográfica não demonstrou lesões radiográficas no período de 7 dias. Lesões periapicais radiográficas foram observadas nos períodos de 15 e 30 dias (47,4% e 77,8% dos casos respectivamente), com dimensões semelhantes (p>0,05). As lesões foram detectadas em todos os casos aos 60 dias, sendo maior que nos demais grupos (p<0,05). A avaliação tomográfica possibilitou a detecção das lesões periapicais nos períodos de 7 dias e 15 dias (32,5% e 83,3% dos casos respectivamente). Todos os casos apresentavam lesões nos períodos de 30 e 60 dias, quando foram observados os maiores valores de reabsorção óssea (p<0,05). A avaliação histológica mostrou áreas de reabsorção... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The aim of this study was the radiographic, tomographic and microscopic evaluation of the development of the induced chronic periapical periodontitis in dog's teeth. The root canals of premolars from four dogs were exposed to the oral environment for seven days for contamination, and then sealed for: GI- 7 days, GII- 15 days, GIII- 30 days, and GIV- 60 days. Immediately after each experimental period, radiographs and tomograms were performed in order to detect periapical bone resorption. The groups was done in the same animal. After the death of the animals, the histopathological evaluation of the apical and periapical tissues was realized. The periapical radiographs were digitized and bone resorption areas were measured. The tomograms were assigned scores based on the evolution of periapical bone resorption. Histopathogical analysis was performed according to the following parameters: apical cementum resorption and periapical bone resorption, intensity and extension of inflammatory infiltrate. The number of inflammatory cells and the area of histological bone resorption were measured using the Image ProPlus 6.1 software. The radiographic results were analyzed by ANOVA and Tukey tests (α=0.05) and the tomography and histological results were analyzed by the Kruskal-Wallis and Dunn tests (α=0.05). So, it was evaluated the development of the chronic periapical periodontitis with the increase of time and the correlation with the osseus resorption by using radiographs and tomograms of the periapical region. The radiographic evaluation did not reveal periapical lesions at 7 days. Lesions could be radiographically observed after 15 and 30 days (47.4% and 77.8% of the cases, respectively) and presented similar dimensions (p>0.05). Lesions were detected in all cases at 60 days, with larger dimensions than those in the previous... (Complete abstract click electronic access below)
Mestre
9
Câmara, Alexandre Sandri. "Avaliação das alterações geométricas e dimensionais dos instrumentos de NiTi do sistema ProTaper para o sistema ProTaper universal e o efeito destas sobre a flexibilidade e a resistência torcional /." Araraquara : [s.n.], 2008. http://hdl.handle.net/11449/101655.
Full textAbstract:
Orientador: Renato de Toledo LeonardoBanca: Mario Tanomaru Filho
Banca: Idomeo Bonetti Filho
Banca: Manoel Eduardo de Lima Machado
Banca: Maria Guiomar de Azevedo Bahia
Resumo: O presente trabalho se propôs a avaliar as alterações geométricas e dimensionais dos instrumentos de NiTi do sistema ProTaper Universal em relação ao sistema ProTaper, bem como o efeito destas sobre a flexibilidade e a resistência à torção dos instrumentos. Um total de 298 instrumentos foram empregados neste estudo. Inicialmente, 12 instrumentos de cada tipo dos dois sistemas foram submetidos a uma caracterização geométrica e dimensional por microscopia óptica. Foram avaliados os parâmetros ângulo, comprimento e diâmetro de ponta, comprimento de cada pitch ao longo das hastes e diâmetro do instrumento a cada milímetro da ponta. Além disso, a área da secção transversal destes instrumentos a 3mm a partir da ponta foi determinada em imagens obtidas por microscopia eletrônica de varredura, usando 01 instrumento de cada formato. Após isto, todos os instrumentos foram aleatoriamente divididos em 4 grupos distintos: Grupo 1 contendo 60 instrumentos ProTaper S1, S2, F1, F2 e F3, sendo 12 unidades de cada formato para os ensaios de torção; Grupo 2 contendo 60 instrumentos ProTaper S1, S2, F1, F2 e F3, sendo 12 unidades de cada formato para os ensaios de flexibilidade; Grupo 3 contendo 84 instrumentos ProTaper Universal S1, S2, F1, F2, F3, F4 e F5, sendo 12 unidades de cada formato para os ensaios de torção; Grupo 4 contendo 84 instrumentos ProTaper S1, S2, F1, F2, F3, F4 e F5, sendo 12 unidades de cada formato para os ensaios de flexibilidade. Tais ensaios de torção e flexibilidade foram executados de acordo com a especificação ISO 3630-1 em um dispositivo de bancada para testes utilizando um programa para aquisição e processamento dos dados especialmente desenvolvido para este fim. Os valores para torque máximo, deflexão angular até a fratura e momento de dobramento foram analisados estatisticamente pelo teste... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The present study has proposed to evaluate the instruments structural changes from NiTi ProTaper System to NiTi ProTaper Universal System as well this effect over torsional resistance and flexibility. It was used a total amount of 298 instruments. At the beginning, 12 instruments of each size from both systems were analyzed dimensional and geometrically by optical microscopy under parameters of angle, length and tip diameter, pitch's length along the blade and instrument's diameter from tip until the end of the active part. Besides, one sample of each size had its 3-mm from the tip's cross sectional area calculated under SEM images. After that, all the instruments were randomly divided into 4 different groups: Group 1 having 60 ProTaper instruments inside (S1, S2, F1, F2 and F3),12 samples from each size, to be submitted to torsion test; Group 2 having 60 ProTaper instruments inside (S1, S2, F1, F2 and F3),12 samples from each size, to be submitted to bending test; Group 3 having 84 ProTaper Universal instruments inside (S1, S2, F1, F2, F3, F4 and F5),12 samples from each size, to be submitted to torsion test; Group 4 having 84 ProTaper instruments inside (S1, S2, F1, F2, F3, F4 and F5),12 samples from each size, to be submitted to bending test. These torsion and bending tests were performed using a bench test device connected with a software to acquire and process data specially developed to this purpose, according to ISO 3630-1. Maximum torque, angular deflection until fracture and bending moment values were statistically analysed using Student's t test. The results have shown that ProTaper and ProTaper Universal system's instruments presented good geometric standardization and acceptable surface features, however differences were detected among the systems. The maximum torque and the bending moment at 45º. were higher for instruments... (Complete abstract click electronic access below)
Doutor
10
Jacinto, Rogerio de Castilho. "Relação da sintomatologia com a presença de microrganismos e endotoxinas em canais radiculares com necrose e suscetibilidade antimicrobiana de bacterias anaerobias estritas." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/290451.
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Orientador: Brenda Paula Figueiredo de Almeida GomesTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: Os objetivos deste estudo foram analisar a microbiota de canais radiculares com necrose e com lesão periapical de dentes sintomáticos e assintomáticos; quantificar a presença de endotoxinas; correlacionar a presença de bactérias específicas e a quantidade de endotoxinas com os sinais e sintomas de origem endodôntica; e investigar a suscetibilidade antimicrobiana de bactérias anaeróbias estritas isoladas dos canais radiculares contra 8 antibióticos, usando o E-test. Amostras microbiológicas foram coletadas de 90 canais radiculares com polpa necrosada e processadas por meio de técnicas microbiológicas. Outras 50 amostras foram obtidas de canais radiculares necrosados, sintomáticos e assintomáticos para realização do teste cromogênico para quantificação das endotoxinas. Análise estatística foi feita pelos testes x2 de Person ou de Fisher. Um total de 400 isolados clínicos foi encontrado, os quais pertenciam a 69 diferentes espécies e 22 diferentes gêneros. Oitenta por cento das bactérias eram anaeróbias estritas e F. nucleatum foi a espécie predominante. Canais radiculares de dentes sintomáticos apresentaram uma predominância de anaeróbios estritos e um número maior de espécies por canal radicular em relação aos dentes assintomáticos. Foi observada uma relação entre grupos microbianos específicos, principalmente anaeróbios Gram-negativos e a presença de dor espontânea ou dor prévia, dor à percussão, dor à palpação e edema. Endotoxinas foram encontradas em altas concentrações em canais radiculares de dentes sintomáticos e houve uma correlação positiva entre os sinais e sintomas e a concentração de endotoxinas. Amoxicilina, amoxicilina associada ao ácido clavulânico e cefaclor foram efetivos contra todas as cepas testadas. Os resultados sugerem que bactérias específicas e endotoxinas estão associadas aos sinais e sintomas de dentes com canais infectados e lesão periapical e que, a maioria das espécies anaeróbias testadas foi suscetível aos antibióticos estudados
Abstract: The aim of this study was to analyse the microflora isolated from infected root canals of symptomatic or asymptomatic teeth, to quantify the presence of endotoxins; to correlate the presence of specific bacteria and the amount of endotoxins with endodontic symptomatology; and to investigate the antibiotic susceptibility of anaerobic bacteria isolated from infected teeth with periapical lesions against 8 antibiotics through the E-test. Microbial samples were taken from 90 root canals of teeth with necrotic dental pulp, and analysed using rigorous culture procedures. Other 50 samples were collected from infected symptomatic or asymptomatic root canals in order to be analysed by a chromogenic test for the endotoxin quantification. Statistical analysis used a Pearson x2 test or a one-sided Fisher's Exact test, as appropriate. A total of 400 cultivable isolates were recovered from 69 different microbial species and 22 different genera. Eight per cent of the bacteria were were strict anaerobes and F. nucleatum was the most frequently isolated species. Root canals from symptomatic teeth harboured more obligate anaerobes and a larger number of bacterial species than the asymptomatic teeth. Relationships were found between specific microorganisms, especially Gram-negative anaerobes and the presence of pain or history of pain, tenderness to percussion, pain to palpation and swelling. High concentrations of endotoxins were found in root canals of symptomatic teeth and there was a positive correlation between endodontic signs and symptoms and the concentration of endotoxins in infected root canals. Amoxicillin, amoxicillin + clavulanate and cephaclor were effective against all the strains tested. Our results suggested that specific bacteria and endotoxins are associated with endodontic symptoms of infected teeth and that the majority of the anaerobic species tested was susceptible to all antibiotics studied.
Doutorado
Endodontia
Doutor em Clínica Odontológica
Books on the topic "Endodontics"
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Kishor, Gulabivala, Walker Richard T, and Stock Christopher, eds. Endodontics. 3rd ed. Edinburgh: Elsevier, Mosby, 2004.
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K, Bakland Leif, and Baumgartner J. Craig, eds. Endodontics. 6th ed. Hamilton, Ontario: BC Decker, 2008.
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1919-, Ingle John Ide, and Bakland Leif K, eds. Endodontics. 5th ed. Hamilton, Ont: BC Decker, 2002.
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Fuks, Anna B., and Benjamin Peretz, eds. Pediatric Endodontics. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-27553-6.
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Kinariwala, Niraj, and Lakshman Samaranayake, eds. Guided Endodontics. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-55281-7.
Full textBook chapters on the topic "Endodontics"
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Kinariwala, Niraj. "CBCT in Endodontics." In Guided Endodontics, 13–25. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55281-7_2.
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Kinariwala, Niraj. "Navigation in Dentistry and Minimally Invasive Endodontics." In Guided Endodontics, 1–11. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55281-7_1.
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Kinariwala, Niraj, Lakshman Samaranayake, Gunpreet Oberoi, and Hermann Agis. "Future Trends of 3D Guidance in Dentistry." In Guided Endodontics, 203–15. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55281-7_10.
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Vecsei, Bálint, Alexandra Czigola, Ivett Róth, Peter Hermann, and Judit Borbély. "Digital Impression Systems, CAD/CAM, and STL file." In Guided Endodontics, 27–63. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55281-7_3.
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Kinariwala, Niraj, Jørgen Buchgreitz, Lars Bjørndal, Bertold Molnár, and Suresh Ludhwani. "Endodontic Guides and Software Planning." In Guided Endodontics, 65–84. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55281-7_4.
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Oberoi, Gunpreet, and Hermann Agis. "3D Printing in Endodontics." In Guided Endodontics, 85–111. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55281-7_5.
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Buchgreitz, Jørgen, Lars Bjørndal, Antônio Paulino Ribeiro Sobrinho, Warley Luciano Tavares, Niraj Kinariwala, and Lucas Moreira Maia. "Static Guided Nonsurgical Approach for Calcified Canals of Anterior Teeth." In Guided Endodontics, 113–33. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55281-7_6.
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Benyőcs, Gergely, and Niraj Kinariwala. "Static Guided Non-surgical Approach for Posterior Teeth." In Guided Endodontics, 135–49. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55281-7_7.
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Antal, Mark Adam. "Static Guided Approach in Surgical Endodontics." In Guided Endodontics, 151–92. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55281-7_8.
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Kinariwala, Niraj, Mark Adam Antal, and Ramóna Kiscsatári. "Dynamic Navigation in Endodontics." In Guided Endodontics, 193–202. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55281-7_9.
Full textConference papers on the topic "Endodontics"
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Ertl, Thomas P., Hartmut Benthin, Boris Majaron, and Gerhard J. Mueller. "Application of lasers in endodontics." In BiOS Europe '97, edited by Gregory B. Altshuler, Reginald Birngruber, Marco Dal Fante, Raimund Hibst, Herbert Hoenigsmann, Neville Krasner, and Frederic Laffitte. SPIE, 1997. http://dx.doi.org/10.1117/12.297859.
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Blankenau, Richard J., Marvin Ludlow, and David Anderson. "Argon laser application to endodontics." In OE/LASE'93: Optics, Electro-Optics, & Laser Applications in Science& Engineering, edited by Dov Gal, Stephen J. O'Brien, C. T. Vangsness, Joel M. White, and Harvey A. Wigdor. SPIE, 1993. http://dx.doi.org/10.1117/12.148557.
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Frentzen, Matthias, Andreas Braun, and Hans J. Koort. "Lasers in endodontics: an overview." In International Symposium on Biomedical Optics, edited by Peter Rechmann, Daniel Fried, and Thomas Hennig. SPIE, 2002. http://dx.doi.org/10.1117/12.469303.
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Ragot-Roy, Brigitte, Claude Severin, and Michel Maquin. "Pulsed Nd-YAG laser in endodontics." In International Symposium on Biomedical Optics Europe '94, edited by Stephen G. Bown, J. Escourrou, Frank Frank, Herbert J. Geschwind, Guilhem Godlewski, Frederic Laffitte, and Hans H. Scherer. SPIE, 1994. http://dx.doi.org/10.1117/12.197599.
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Liesenhoff, Tim. "308-nm excimer laser in endodontics." In OE/LASE '92, edited by R. R. Anderson. SPIE, 1992. http://dx.doi.org/10.1117/12.137369.
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Dong, J., and H. Everett. "The Development of Endodontic Micro Robot." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-41562.
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Endodontic therapy, better known as root canal treatment, is a procedure performed to remove damaged and/or infected tissue from the inner canals of teeth and seal the canals to prevent the teeth from being a source of infection. Each year more than 24 million teeth receive endodontic treatment in the United States. A typical procedure includes access preparation (opening crown with drills), root canal shaping and cleaning, and then root canal filling. This treatment is expensive, time-consuming, and prone to human error. The outcome relies on the clinician’s skill, which is gained through years of training and practice. The success quotient of this treatment is 60–65% for general dentists and 90% for specialists (endodontists). There is a need for advanced endodontic technology innovation. This paper will describe the process of mechanical design of computer-controlled micro machine, which will perform the automatic probing, drilling, cleaning, and filling of the root canal. The paper will also discuss the innovations involved from the traditional way endodonticsts treat root canal to science and technology based automation.
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Hibst, Raimund, Karl Stock, Robert Gall, and Ulrich Keller. "Er:YAG laser for endodontics: efficiency and safety." In BiOS Europe '97, edited by Gregory B. Altshuler, Reginald Birngruber, Marco Dal Fante, Raimund Hibst, Herbert Hoenigsmann, Neville Krasner, and Frederic Laffitte. SPIE, 1997. http://dx.doi.org/10.1117/12.297860.
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Pereira, Mário Rito, Paula Pascoal-Faria, Isabel Vasconcelos, Nuno Alves, and António Ginjeira. "Endodontics irrigation: A computational fluid dynamics approach." In INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS ICNAAM 2020. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0085908.
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Gadiya, Prem, Jwalandhar Girnar, Pankaj Dhatrak, and Ratnakar Ghorpade. "Review on modern day irrigation methods in endodontics." In SEVENTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2020). AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0057945.
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Aun, Carlos E., Alexandre F. Barberini, Selma C. C. Camargo, Luciana Silva Kfouri, and Maria R. Lorenzetti Simionato. "Bactericidal effect of Nd:YAG laser irradiation in endodontics." In BiOS '99 International Biomedical Optics Symposium, edited by John D. B. Featherstone, Peter Rechmann, and Daniel Fried. SPIE, 1999. http://dx.doi.org/10.1117/12.348354.
Full textReports on the topic "Endodontics"
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Dioguardi, Mario. Analysis of the Impact of the Ninja Endodontic Access Cavity on the Fracture Resistance in Endodontics, Systematic Review of Vitro Study. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, January 2024. http://dx.doi.org/10.37766/inplasy2024.1.0026.
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Dioguardi, Mario. Application of the Extracts of Uncaria Tomentosa in Endodontics and Oral Medicine: Scoping Review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, July 2022. http://dx.doi.org/10.37766/inplasy2022.7.0024.
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Khater, Ahmad, Faez Saleh Al-hamed, Engie Safwat, Mehada Hamouda, Mohamed Shehata, and Antonio Scarano. Efficacy of hemostatic agents in endodontic surgery: A protocol of systematic review and network meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, February 2021. http://dx.doi.org/10.37766/inplasy2021.2.0038.
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Mamani, Juan Alberto Mendieta, and Gino Hernan Vidalon Romo. RESISTANCE TO ROOT FRACTURE IN FIBERGLASS POSTS, ANATOMIZED POSTS AND CASTED POSTS IN SINGLE-ROUND TEETH. A SYSTEMATIC REVIEW. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, March 2023. http://dx.doi.org/10.37766/inplasy2023.3.0111.
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Review question / Objective: What will be the resistance to root fracture in fiberglass posts vs. anatomical posts and cast posts in single-rooted single-canal teeth? Objective: To evaluate and compare the resistance to fracture in single-rooted teeth with endodontic treatment restored with different intra-radicular posts. Specific objectives: 1. Determine what factors influence fracture resistance in teeth restored with different intraradicular posts. 2. To determine the influence of the anatomization of the fiberglass post with composite resin, with respect to the resistance to fracture, in single-rooted teeth with a single canal. 3. Evaluate the failure pattern of the anatomization of the fiberglass post using composite resin.
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Alharbi, Shuaa S., and Haifa F. Alhasson. Toward the Identification of Applications of Artificial Intelligence for Dental Image Detection: Systematic Review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, November 2022. http://dx.doi.org/10.37766/inplasy2022.11.0023.
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Review question / Objective: The purpose of this systematic review is to understand and compare the current applications of machine learning in the care of dental patients. This will enable us to assess their diagnostic and prognostic accuracy. As part of the study, we will identify areas of development for ML applications in the dental care field. In addition, we will suggest improvements to research methodology that will facilitate the implementation of ML technologies in services and improve clinical treatment guidelines based on the results of future studies. Condition being studied: This study rationally focused on reviewing the current state of Artificial Intelligence (AI) in dentistry and state-of-the-art applications, including the recognition of teeth cavities, filled teeth, crown predictions, oral surgery, and endodontic therapy.
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Yang, Feng, Lintong Yu, and Jun Wang. Does the use of blood clot or other different scaffold materials have an impact on the therapeutic effect of regenerative endodontic procedures? a systematic evaluation and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, January 2024. http://dx.doi.org/10.37766/inplasy2024.1.0072.
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