Academic literature on the topic 'Periodontal surgery'

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Journal articles on the topic "Periodontal surgery"

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Barthel, James H. "Periodontal surgery." Journal of Oral and Maxillofacial Surgery 47, no. 8 (August 1989): 21–22. http://dx.doi.org/10.1016/0278-2391(89)90487-4.

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COHEN, EDWARD S. "PERIODONTAL PLASTIC SURGERY." Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology) 38, Supplement2 (1996): 39. http://dx.doi.org/10.2329/perio.38.supplement2_39.

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Karring, Thorkild. "Regenerative Periodontal Surgery." Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology) 41, Supplement2 (1999): 45–48. http://dx.doi.org/10.2329/perio.41.supplement2_45.

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Anthony, James M. G. "Periodontal surgery equipment." Clinical Techniques in Small Animal Practice 15, no. 4 (November 2000): 232–36. http://dx.doi.org/10.1053/svms.2000.21920.

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Zucchelli, Giovanni, and Ilham Mounssif. "Periodontal plastic surgery." Periodontology 2000 68, no. 1 (April 13, 2015): 333–68. http://dx.doi.org/10.1111/prd.12059.

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Rodrigues, Ariana Larissa de Moura, Ana Carolina de Sá Gomes Cruz Souza, Jéssica Gomes Alcoforado de Melo, and Diego Moura Soares. "Lesões em áreas de furca: fatores etiológicos, diagnóstico e tratamento." ARCHIVES OF HEALTH INVESTIGATION 9, no. 6 (December 20, 2020): 635–40. http://dx.doi.org/10.21270/archi.v9i6.5110.

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As lesões de furca ocorrem quando a doença periodontal atinge a área de bifurcação dos dentes multirradiculares causando a destruição óssea e perda de inserção no espaço inter-radicular. Existem diversos fatores etiológicos que influenciam no aparecimento dessas lesões e até os dias de hoje o tratamento desse tipo de injúria ainda é um desafio na clínica odontológica. O objetivo deste artigo foi listar, através de uma revisão da literatura, os fatores que influenciam na etiologia da lesão de furca, bem como o seu diagnóstico, prognóstico e tratamento. Fatores como características morfológicas do dente e raiz e deficiência no controle do biofilme, que podem contribuir para o seu aparecimento. Além de diversos tipos de procedimentos e técnicas têm sido propostas para o tratamento das lesões de furca, seja mais ou menos conservadores. Descritores: Defeitos da Furca; Diagnóstico; Doenças Periodontais. Referências Deliberador TM, Nagata MJH, Furlaneto FAC, Messora MR, Bosco AF, Garcia VG et al. Abordagem conservadora no tratamento dos defeitos de furca. RSBO. 2008;5(8):49-55. Silva GP, Sousa Neto AC, Pereira AFV, Alves CMC, Pereira ALA, Serra LLL. Classificação e tratamento das lesões de furca. Rev Ciênc Saúde. 2014;16(2):112-28. Nibali L, Zavattini A, Nagata K, Di Iorio A, Lin GH, Needleman I, et al. Tooth loss in molars with and without furcation involvement - a systematic review and meta-analysis. J Clin Periodontol. 2016;43(2):156-66. Artacho MCI, Arambulo GM. Defectos de furcación. Etiología, diagnóstico y tratamiento. Rev Estomatol Herediana. 2010;20(3):172-78. Pereira SG, Pinho MM, Almeida RF. Regeneração periodontal em lesões de furca–revisão da literatura. Rev port estomatol med dent cir maxilofac. 2012;53(2):123-32. Queiroz LA, Casarian RCV, Daddoub SM, Tatakis DN, Enilson AS, Kumar PS. Furcation Therapy with Enamel Matrix Derivative: Effects on the Subgingival Microbiome. J Periodontol. 2017;88(7):617-25. Vieira TR, Costa FO, Zenóbio EG, Soares RV. Anatomia radicular e suas implicações na terapêutica periodontal. Rev Periodontia 2009;19(1):7-13. Bower RC. Furcation morphology relative to periodontal treatment. Furcation root surface anatomy. J Periodontol. 1979;50(7):366-74. Newman M, Takei H, Klokkevold P, Carranza F. Periodontia clínica. ed. São Paulo: Elservier; 2016. Lindhe J, Karring T, Lang NP. Tratado de periodontia clínica e implantodontia oral. ed; Rio de Janeiro: Guanabara Koogan;2010. Hamp SE, Nyman S, Lindhe J. Periodontal treatment of multirroted teeth. Result after 5 years. J Clin Periodontol. 1975;2(3):126-35. Ramjford SP, Ash MM. Periodontology and Periodontics. Philadelphia: W.B. Saunders Co; 1979. Tarnow D, Fletcher P. Classification of the vertical component of furcation involvement. J Periodontol. 1984;55(5):283-84. Walter C, Weiger R, Zitman NU. Periodontal surgery in furcation-involved maxillary molars revisited: an introduction of guidelines for comprehensive treatment. Clin Oral Investig. 2011;15(1):9-20. Sallum AW, Cicareli AJ, Querido MRM, Bastos-Neto FVR. Periodontia e implantodontia - Soluções estéticas e recursos clínicos. Rio de Janeiro: Napoleão; 2010. Graziani F, Gennai S, Karapetsa D, Rosini S, Filice N, Gabriele M, et al. Clinical performance of access flap in the treatment of class II furcation defects. A systematic review and meta-analysis of randomized clinical trials. J Clin Periodontol. 2015;42(2):169-81. Svärdström G, Wennström JL. Periodontal treatment decisions for molars: an analysis of influencing factors and long-term outcome. J Periodontol. 2000;71(4):579-85. Huynh-Ba G, Kuonen P, Hofer D, Schmid J, Lang NP, Salvi GE. The effect of periodontal therapy on the survival rate and incidence of complications of multirooted teeth with furcation involvement after an observation period of at least 5 years: a systematic review. J Clin Periodontol. 2009;36(2):164-76. Shirakata Y, Miron RJ, Nakamura T, Sena K, Shinohara Y, Horai N et al. Effects of EMD liquid (Osteogain) on periodontal healing in class III furcation defects in monkeys. J Clin Periodontol. 2017;44(3):298-307. Meyle J, Gonzales JR, Bödeker RH, Hoffmann T, Richter S, Heinz B et al. A randomized clinical trial comparing enamel matrix derivative and membrane treatment of buccal class II furcation involvement in mandibular molars. Part II: secondary outcomes. J Periodontol. 2004; 75(9):1188-95. Jenabian N, Haghanifar S, Ehsani H, Zahedi E, Haghpanah M. Guided tissue regeneration and platelet rich growth factor for the treatment of Grade II furcation defects: A randomized double-blinded clinical trial - A pilot study. Dent Res J (Isfahan). 2017;14(6):363-69. Kinaia M, Steiger J, Neely AL, Shah M, Bhola M. Treatment of class II molar furcation involvement: meta-analyses of re-entry results. J Periodontol. 2011;82(1):413-28. Correa A, Ferreira PS, Barboza R, Ribeiro EDP, Bittencourt S. Fatores que influenciam no sucesso da técnica do retalho posicionado coronalmente. Rev Bahiana Odonto; 2013;4(2):117-28. Jepsen S, Gennai S, Hirschfeld J, Kalemaj Z, Buti J, Graziani F. Regenerative surgical treatment of furcation defects: A systematic review and Bayesian network meta-analysis of randomized clinical trials. J Clin 2020;47(Suppl 22):352-74. Reddy MS, Aichelmann-Reidy ME, Avila-Ortiz G, Klokkevold PR, Murphy KG, Rosen PS, et al. Periodontal regeneration - furcation defects: a consensus report from the AAP Regeneration J Periodontol. 2015;86(2 Suppl):S131-3. Casarin RCV, Ribeiro EDP, Nociti-Jr FH, Sallum AW, Ambrosano GMB, Sallum EA, et al. Enamel matrix derivative proteins for the treatment of proximal class II furcation involvements: a prospective 24-month randomized clinical trial. J Clin Periodontol; 2010;37(12):1100-109. Hoffmann T, Richter S, Meyle J, Gonzales JR, Heinz B, Arjomand M et al. A randomized clinical multicentre trial comparing enamel matrix derivative and membrane treatment of buccal class II furcation involvement in mandibular molars. Part III: patient factors and treatment outcome. J Clin Periodontol. 2006;33(8):575-83.
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Sakamoto, Marcelo Yudi, Mariana Oliveira, Nayara Flores Macedo, and Humberto Osvaldo Schwartz-Filho. "Periodontal Surgery for Correction of Gingival Smile: a Case Report Analysis of Periodontal Parameters after 2 Years." Journal of Health Sciences 23, no. 1 (March 18, 2021): 79–83. http://dx.doi.org/10.17921/2447-8938.2021v23n1p79-83.

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AbstractGingival smile is a term used to describe an aesthetic condition in which excessive gingival exposure at the jaw level occurs during smile. There are several factors related to its etiology, the most common is the altered passive eruption of anterior superior teeth. To correct this disharmony, a multidisciplinary approach is necessary, and the treatment plan depends on a correct diagnosis and assessment for a better prognosis. The present study aims to describe a clinical case where periodontal surgical techniques were used to correct this condition. Female patient, 25 years old, with aesthetic complaint of the amount of gum exposed when smiling and diagnosed with altered passive eruption. Clinical crown augmentation surgery was performed on the anterior superior teeth. After 1 and 2 years, periodontal clinical parameters (probing bleeding, probing depth, clinical attachment level, crown length, keratinized mucosa width and plaque index) were reassessed, through clinical examination, digital photographic monitoring and measurement tools. In two years, it was possible to note the stability of the results achieved, maintaining values similar to those of the immediate postoperative period. The case report confirmed the success of the clinical crown augmentation surgery and the periodontal parameters stability evaluated after 2 years. Keywords: Periodontics Surgery. Gingivectomy. Aesthetics. ResumoSorriso gengival é o termo utilizado para descrever uma condição estética em que ocorre uma exposição gengival excessiva ao nível da maxila, durante o sorriso. Há diversos fatores relacionados a sua etiologia, sendo a mais comum a erupção passiva alterada dos dentes ântero-superiores. Para correção dessa desarmonia é necessária uma abordagem multidisciplinar, sendo o plano de tratamento dependente de um correto diagnóstico e avaliação para um melhor prognóstico. O presente estudo tem objetivo de descrever um caso clínico onde técnicas cirúrgicas periodontais foram utilizadas para correção dessa condição. Paciente gênero feminino, 25 anos de idade, com queixa estética da quantidade de gengiva exposta ao sorrir e com diagnóstico de erupção passiva alterada. Foi submetida a cirurgia de aumento de coroa clínica nos dentes antero-superiores. Após 1 e 2 anos foram reavaliados os parâmetros clínicos periodontais (sangramento a sondagem, profundidade de sondagem, perda de inserção, comprimento da coroa, largura da mucosa queratinizada e índice de placa), através de exame clinico, acompanhamento digital fotográfico e ferramentas de medição de imagem. Em dois anos, foi possível constatar a estabilidade dos resultados alcançados, mantendo valores semelhantes aos do pós-operatório imediato. O relato de caso confirmou o sucesso da cirurgia de aumento de coroa clínica e a estabilidade dos parâmetros periodontais avaliados após 2 anos. Palavras-chave: Periodontia. Cirurgia. Gengivectomia. Estética.
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Trivedi, Shilpa. "Antibiotics and periodontal surgery." Journal of Indian Society of Periodontology 18, no. 5 (2014): 548. http://dx.doi.org/10.4103/0972-124x.142435.

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Zbaeda, M. M. "Practical advanced periodontal surgery." British Dental Journal 204, no. 12 (June 2008): 705. http://dx.doi.org/10.1038/sj.bdj.2008.534.

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HINDMAN, ROBERT E. "Atlas of periodontal surgery." Special Care in Dentistry 8, no. 3 (May 1988): 139. http://dx.doi.org/10.1111/j.1754-4505.1988.tb00717.x.

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Dissertations / Theses on the topic "Periodontal surgery"

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Streem, Jason. "PATIENT SATISFACTION WITH SEDATION FOR PERIODONTAL SURGERY: A RANDOMIZED, CROSS-OVER CLINICAL STUDY." VCU Scholars Compass, 2011. http://scholarscompass.vcu.edu/etd/2438.

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PURPOSE: To create a study designed to assess patient satisfaction and preference for oral versus intravenous sedation in conjunction with periodontal surgical procedures. METHODS: Twenty-six patients who required at least two periodontal surgery procedures and requested sedation for treatment, participated in our study at VCU Department of Periodontics. This was a randomized, cross-over design with groups which received an intravenous sedative regimen with or without oral sedation premedication for one surgery and oral sedation medication alone for the other surgery. The primary outcome measurement was the type of sedation preferred by the subject. RESULTS: 14/26 (53.8%) subjects indicated a preference for intravenous sedation, compared with 7/26 (26.9%) subjects who preferred oral sedation alone. 1/26 (3.8%) subject reported that they would prefer no sedation after experiencing both oral and oral/intravenous combination sedation methods. 4/26 (15.3%) of the subjects who completed the study reported “No Difference” with regards to their preference for either method of sedation. CONCLUSION: More subjects preferred intravenous sedation and would consent to the sedation again for any future needed surgery. This study supports the need to offer intravenous sedation with periodontal surgery
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Mullins, Stephanie Lauren MacNeill Simon R. "Morphologic and microbiological effects of a third generation CO₂ laser on the treatment of periodontal pockets a pilot study /." Diss., UMK access, 2006.

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Thesis (M.S.)--School of Dentistry. University of Missouri--Kansas City, 2006.
"A thesis in oral biology." Advisor: Simon R. MacNeill. Typescript. Vita. Title from "catalog record" of the print edition Description based on contents viewed Nov. 12, 2007. Includes bibliographical references (leaves 56-60). Online version of the print edition.
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Carvalho, Marcelo Diniz. "Avaliação histometrica do efeito do vidro bioativo (perioglas) e do plasma rico em plaquetas (PRP), e sua associação a regeneração tecidual guiada no tratamento de defeitos periodontais em cães." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/290843.

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Orientadores: Enilson Antonio Sallum, Francisco Humberto Nociti Junior
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
Made available in DSpace on 2018-08-11T04:19:27Z (GMT). No. of bitstreams: 1 Carvalho_MarceloDiniz_D.pdf: 1165733 bytes, checksum: 82232f97e2d53102bacf115c3e02623a (MD5) Previous issue date: 2008
Resumo: O objetivo do presente trabalho foi avaliar histometricamente o efeito do plasma rico em plaquetas (PRP), do vidro bioativo (Perioglas?) e sua associação sobre a regeneração periodontal em defeitos intra-ósseos de 3 paredes, além de sua combinação à regeneração tecidual guiada (RTG) em defeitos de furca grau II em cães. Foram incluídos 9 cães, fêmeas, de raça indefinida e pesando aproximadamente 15Kg. Os animais tiveram os segundos e quartos pré-molares e segundos molares mandibulares extraídos. Decorridas 12 semanas das extrações, foram criados cirurgicamente 4 defeitos intra-ósseos de 3 paredes (dimensões 4x4x4mm), sendo 2 nas faces mesiais e 2 nas faces distais dos primeiros molares mandibulares. Outros 2 defeitos do tipo furca grau II (5x2mm) foram criados na face vestibular dos terceiros pré-molares mandibulares. Em todos os defeitos foram utilizados dispositivos para cronificação durante 4 semanas. Uma semana após a remoção dos dispositivos de cronificação, os animais foram então submetidos à cirurgia para tratamento dos defeitos. O lado que recebeu os tratamentos com o PRP foi inicialmente sorteado, sendo então designados aleatoriamente os respectivos tratamentos: Controle (C); Vidro Bioativo (VB); Plasma Rico em Plaquetas (PRP) e PRP+VB, para os defeitos intra-ósseos. O lado que recebeu os tratamentos PRP e VB+PRP teve o defeito de furca grau II tratado com a associação do PRP+VB+RTG, sendo o dente contra lateral tratado com VB+RTG. Decorridas 12 semanas das cirurgias de tratamento, os animais foram sacrificados. Após processamento histológico, procedeu-se com a avaliação histométrica. Não foram observadas diferenças significantes para os parâmetros avaliados nos defeitos intra-ósseos. A extensão de epitélio foi 2,24±0,58 mm, 1,94±0,37 mm, 1,97±0,37 mm e 1,81±0,61 mm para, Controle, VB, PRP e PRP + VB, respectivamente. A adaptação conjuntiva sem formação de cemento foi 0,90±0,28 mm, 0,84±0,41 mm, 1,07±0,27 mm e 1,15±0,32 mm, respectivamente. A extensão de novo cemento foi 2,63±0,70 mm, 2,56±0,36 mm, 2,37±0,38 mm e 3,10±0,47 mm, respectivamente. A extensão de novo osso foi 4,77±0,44 mm, 4,64±0,68 mm, 4,67±0,46 mm e 4,84±0,42 mm, respectivamente. A porcentagem de preenchimento do defeito foi 47% no grupo C, 50% com VB, 53% com PRP e 50% com VB+PRP. Para os defeitos de furca verificou-se diferença significante na formação de novo cemento em favor do grupo VB+PRP+RTG (p=0,035). Dento dos limites deste estudo pode-se concluir que o uso do VB e PRP de forma isolada ou associada não promoveram efeito adicional à regeneração periodontal em defeitos intra-ósseos de três paredes em cães. Entretanto, pode-se concluir também que o uso do PRP promoveu uma maior formação de cemento em defeitos de furca grau II em cães, quando associado ao VB e à RTG
Abstract: The objective of the present study was to evaluate at the histological level the effect of platelet-rich plasma (PRP), bioactive glass (BG) and his association on periodontal regeneration of 3-wall intrabony defects and its combination with guided tissue regeneration (GTR) on the regeneration of class II lesions in dogs. Nine mongrel dogs with approximately 15Kg were used in the experiment. The animals had the second premolar, fourth premolar and second molar at the mandible extracted. After twelve weeks, three-wall intra-bony defects (4x4x4m) were surgically created at the mesial and distal aspect of first mandibular molar. Class II furcation lesions (5x2mm) were surgically created, bilaterally, at the buccal aspect of mandibular third premolar. All defects were exposed to plaque accumulation for 1 month. One week after to remove the cronification devices, the defects were submitted to treatments. All treatments with PRP were located at the same side. Intrabony and class II furcation defects were randomly assigned to: Control (C); BG; PRP and PRP+BG, and PRP+BG+GTR and BG+GTR, respectively. Dogs were sacrificed 90 days after the surgeries and the blocks containing the experimental specimens were processed for histological analysis. No statistically significant differences were observed in all parameters for the treatment of intrabony defects. The extension of total epithelium (sulcular and junctional epithelium) was 2.24 ??0.58 mm, 1.94 ± ?0.37 mm, 1.97 ± ?0.37 mm and 1.81 ± ?0.61 mm for, Control, BG, PRP and PRP+BG, respectively. The new connective tissue adjacent to the root without cementum formation was 0.90 ± ?0.28 mm, 0.84 ± ?0.41 mm, 1.07 ± ?0.27 mm and 1.15 ± ?0.32 mm, respectively. The extension of new cementum was 2.63 ± ?0.70 mm, 2.56 ± ?0.36 mm, 2.37 ± ?0.38 mm and 3.10 ??0.47 mm, respectively. The length of new bone was 4.77 ± ?0.44 mm, 4.64 ± ?0.68 mm, 4.67 ± ?0.46 mm and 4.84 ± ?0.42 mm, respectively. The percentage of bone filling was 47% on the control group, 50% with BG, 50% with PRP+BG and 53% with PRP. At the class II furcation, no statistically significant differences were observed in defect extension and new bone (p=0.29).The extension of new cementum was 9.64 ± ?1.53 mm and 11.00 ± ?1.05 mm (p=0.03) to GTR+BG and GTR+BG+PRP, respectively. Within the limits of this study, it can be concluded that PRP, BG and their association was not able to increase the amount of periodontal regeneration obtained to the treatment of 3-wall intrabony defects in dogs. However, it can be assumed that PRP promoted an increase of cementum regeneration when applied in association with BG and GTR for the treatment of class II furcation lesions in dogs
Doutorado
Periodontia
Doutor em Clínica Odontológica
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Sanz, Moliner Javier Daniel. "A 810 nm Diode Laser following Modified Widman Flap Surgery." Doctoral thesis, Universitat Internacional de Catalunya, 2012. http://hdl.handle.net/10803/83931.

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The purpose of this study was to clinically compare the use of a 810 nm diode laser (DL) following modified Widman flap (test sites) to that of modified Widman flap (MWF) alone (control sites). Thirteen patients with periodontal pockets in two different quadrants with at least one tooth exhibiting a pocket depth of >7 millimeters and attachment levels of >7mm were selected. One side was randomly selected to receive MWF and the other to receive a diode laser following MWF. The DL was used to de-epithelialize the inner part of the periodontal flap and photo-biostimulate the surgical area. Probing depth (PD), clinical attachment levels (CAL), plaque index (PI), and gingival index (GI) were evaluated at baseline, 6 weeks and 5 months. Pain scale assessment (PS), pain medication consumption (PM), tissue edema (TE), and tissue color (TC) were evaluated one week following surgery. Treatment differences were analyzed using McNemar’s test, paired t-tests or a Wilcoxon Signed Rank Test. No statistical differences of CAL gain, PD, GI and PI reduction between laser sites and control sites were seen. Statistically significant differences were seen for TE (p=0.041), PM (p<0.001) and PS (p<0.001) favoring test sites. TC did not show a statistically significant difference (p=0.9766). Patients rated the first surgical treatment performed as more painful than the second (p<0.002). The use of a 810 nm diode laser following modified Widman flap provided additional benefits in terms of less edema and post operative pain.
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Marantz, Corin. "Periodontal Resident Self-Assessment of Ergonomics Before and After Videotaped Surgeries." VCU Scholars Compass, 2012. http://scholarscompass.vcu.edu/etd/2684.

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Objective: To examine whether self-assessment of videotaped surgeries helps improve periodontal residents’ ergonomics. Methods: Residents (n=8) provided self-assessments of their own ergonomics while performing periodontal surgery using a questionnaire with open and closed items. Results were analyzed using quantitative and qualitative means. Results: Comparison of responses resulted in a change between Pre-video Surgery 1 and PSV1 (p<0.05) and between the three occasions for flat foot and horizontal shoulder positions (p<0.05). Resident goals were most numerous for improving positions of shoulder, back and neck and most notable responses for failure to achieve goals were the need for surgical access and being too focused the procedure. Conclusions: Videotape review is a valid means of self-assessment. Intervention solely in the form of a questionnaire and videotape review was insufficient in its ability to change the residents’ ergonomics. Barriers to implementation of proper ergonomics were identified.
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Tinós, Adriana Maria Fuzer Grael. "Ansiedade, fluxo salivar, condição periodontal e cárie dentária em obesos antes e depois da cirurgia bariátrica." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/25/25144/tde-03052017-193515/.

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A presente pesquisa, dividida em três estudos (EI, EII e EIII), objetivou investigar a influência da obesidade e da cirurgia bariátrica (CB) na ansiedade e na saúde bucal de candidatos à CB. Candidatos à CB constituíram os grupos experimentais (GE) dos três estudos e o grupo controle (GC) do EIII. GC dos EI e EII foram compostos por obesos que não buscavam tratamento para a obesidade e não obesos, respectivamente. Cada estudo foi composto por 100 indivíduos divididos em GE e GC. Em EI e EIII, tipos longitudinais prospectivos, GE e GC foram avaliados em duas etapas: GE - antes CB (T0) e um ano após CB (T1); GC - inicial (T0) e um ano após inicial (T1). Foram avaliadas as variáveis: fluxo salivar (em EI); profundidade de sondagem, recessão gengival, nível de inserção clínica, periodontite, cálculo e sangramento gengival (em EII); lesões iniciais de cárie dentária - LIC e sangramento gengival (em EIII). Características sociodemográficas, comportamentais e antropométricas, ansiedade (medida pelo Inventário de Ansiedade Traço-Estado - IDATE), e presença de diabetes/hipertensão foram utilizadas nos três estudos. Para a análise dos dados foram utilizados os testes Exato de Fisher, Qui-quadrado, Mann-Whitney, Kruskal-Wallis (Dunn), e two-way Anova (Sidak), além de análises de regressão, linear e logística, e cálculos de risco relativo (RR) e taxa de incidência (IR). O nível de significância foi de 5%. Em ambos os EI e EIII, estado e traço de ansiedade não diferiram entre GC e GE, nem entre T1 e T0. No entanto, GC, em EII, apresentou maior ansiedade-traço do que GE (p = 0,0004). Em El, fluxo salivar não foi influenciado nem pelos grupos (p = 0,29) nem pelo tempo (p = 0,81). Em EII, GE teve mais casos de profundidade de sondagem entre 4 a 5 mm (p = 0,0006) do que GC, mas a presença de sangramento gengival foi mais frequente no GC (p = 0,0139). Em EIII, o número de dentes com LIC (p = 0,0013) e sangramento gengival (p = 0,0096) aumentou após um ano de CB. No entanto, CB não foi considerada fator de risco para LIC (RR = 0,86, p = 0,3439) e sangramento gengival (RR = 1,14, p = 0,4008). Concluiu-se que ambos os indivíduos, obesos e bariátricos, mostraram vulnerabilidade aos desfechos estudados, sendo necessária a participação do profissional de odontologia na equipe de atendimento a esses pacientes.
The present study was designed to observe the influence of obesity and bariatric surgery (BS) in anxiety and oral health of BS candidates. It was divided into 3 experimental designs (EI, EII and EIII). BS candidates constituted the experimental groups (EG). Control group (CG) of EI and EII were obese subjects not seeking treatment for obesity and non-obese subjects, respectively. Each study was composed of 100 subjects divided into EG and CG. In EI and EIII, both prospective longitudinal studies, EG and CG were evaluated in two stages: EG - before BS (T0) and one year after BS (T1); CG - baseline (T0) and one year after baseline (T1). The following outcomes were evaluated: salivary flow (only in EI); probing depth, gingival recession, clinical attachment level, periodontitis, calculus and gingival bleeding (for EII); initial lesions of dental caries ILDC, and gingival bleeding (for EIII). Sociodemographic, behavioral, anthropometric characteristics and the presence of diabetes/hypertension were determined in all experiments. Anxiety was measured by State-Trait Anxiety Inventory. Data analysis was performed by Exact Fisher, Chi-square, Mann-Whitney, Kruskal-Wallis (Dunn), and two-way Anova (Sidak) tests. In addition, linear and logistic regression analysis and calculations of relative risk (RR) and incidence rate (IR) were also used. Significance level was set at 5%. In both EI and EIII, state and trait anxiety did not differ between CG and EG, nor among T1 and T0. However, CG showed higher trait anxiety than EG (p=0.0004) in EII. In EI, salivary flow was not influenced by groups (p = 0.29) or time (p = 0.81). In EII, EG had more cases of probing depth between 4 to 5 mm (p = 0.0006) than CG, but the presence of gingival bleeding was more frequent in CG (p = 0.0139). In EIII, the number of teeth with ILDC (p = 0.0013) and gingival bleeding (p = 0.0096) increased after one year of BS. However, BS was not considered a risk factor for ILDC (RR = 0.86, p = 0.3439), and gingival bleeding (RR = 1.14, p = 0.4008). It was possible to conclude that both obese and BS subjects showed vulnerability to the studied outcomes, requiring dental professionals on care-staff to treat these patients.
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Santos, Giselle Gasparino dos. "A influ?ncia do sorriso gengival no vedamentos labial." Universidade Federal do Rio Grande do Norte, 2006. http://repositorio.ufrn.br:8080/jspui/handle/123456789/13381.

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Made available in DSpace on 2014-12-17T14:13:58Z (GMT). No. of bitstreams: 1 GiselleGS.pdf: 211619 bytes, checksum: 6067524ca70f63167077629a96864d9a (MD5) Previous issue date: 2006-12-11
Ideally the smile should expose minimal gingival, therefore patients with gummy smile and passive eruption altered or excessive marginal gingivae, usually excessive gingival display because incomplete anatomical crown exposure is present. If the maxillary incisor show at rest is optimal, active upper incisor intrusion should not be iniciated. To achieve a smile with minimal gingival exposure, the anatomic crown should be fully exposed by surgical crown lengthening. Precise determination of the location of cementoenamel junction prior to surgery, precise placement of incisions and correct establish of biological width are necessary in order to achive this goal. One protocol is decribed and clinical results from 15 brazilian subjects, after three years post surgery are showed
Este projeto consagrou o encontro de duas ?reas do conhecimento: Periodontia e Fonoaudiologia, sendo o mesmo orientado por uma cirurgi? dentista, doutora em Odontologia e realizado por uma fonoaudi?loga mestre em Dist?rbios da Comunica??o. Os experimentos foram realizados por uma equipe multidisciplinar, composta por fonoaudi?logo e cirurgi?es dentistas que buscaram a rela??o em indiv?duos portadores de sorriso gengival e as implica??es miofuncionais orais. Objetivo: A proposta deste estudo foi verificar a influ?ncia do sorriso gengival no vedamento labial. Metodos: 18 indiv?duos com sorriso gingival e dificuldade no vedamento labial foram submetidos a avali??o oromiofuncional e eletromiografia de superf?cie parea verificar o esfor?o do m?sculo mentual para a realiza??o do vedamento labial nas condi??es pr? e p?s cir?rgica. Foi realizada cirurgia periodontal para remover o excesso de tecido gengival e/ou volume ?sseo da pr?-maxila e, ap?s 6 meses os pacientes foram reavaliados. Resultados: Diminui??o da contra??o e tens?o do musculo mentual foi clinicamente observado durante o vedamento labial e a an?lise eletromiogr?fica revelou uma diferen?a estatisticamente significante (27.67 ?RMS - 6.46 ?RMS, p=0.004) no esfor?o do m?sculo mentual para o vedamento labial ap?s a cirurgia. Conclus?o: O vedamento labial ? infuenciado pelo volume ?sseo e/ou gingival e a cirurgia periodontal contribiu para um contato mais suave entre os l?bios
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8

Freitas, Adriana Rodrigues de. "Condições periodontais e de higiene bucal, qualidade de vida e satisfação com a vida em pacientes obesos diabéticos e não diabéticos submetidos à cirurgia bariátrica." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/25/25144/tde-26022016-152439/.

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Objetivou-se avaliar as condições periodontais e de higiene bucal, qualidade de vida e satisfação geral com a vida em pacientes obesos diabéticos e não diabéticos submetidos à cirurgia bariátrica (CB). Estudo observacional longitudinal prospectivo que contou com amostra inicial de 150 indivíduos (G1- obesos diabéticos n=50; G2-obesos não diabéticos, n=50 e G3-eutróficos, n=50). G1 e G2 foram submetidos à CB e avaliados após seis (PO 6m, G1-n=18; G2-n=34) e 12 meses (PO 12m, G1-n=10; G2-n=15). Utilizou-se Índice de Massa Corpórea (IMC), Circunferências da Cintura (CC) e Quadril (CQ) e Relação Cintura-Quadril (RCQ). Os exames bucais foram realizados por um examinador (Kappa>0,81), avaliando sangramento (S), profundidade de sondagem (PS), nível de inserção clínica (NIC), índice de placa (IP), gengivite, periodontite e dentes perdidos. Aplicouse OHIP-14 e Escala de Satisfação com a Vida (SV), além do registro das condições socioeconômicas, hábitos e história médica. Na análise dos dados foram aplicados Análise de Variância pós teste Tukey, Kruskal-Wallis pós teste Dun, Friedman, teste t-Student, Mann-Whitney, Odds ratio, intervalo de confiança 95%, Qui-quadrado e correlação de Pearson (p<0,05). O gênero feminino foi o mais prevalente G1- 80,00%; G2-90,00%; G3-80,00%) e idade média foi 43,48±8,99-G1, 38,70±8,52-G2 e 40,22±12,35-G3. Houve diferença quanto à escolaridade, ocupação, renda, hipertensão e etilismo (p<0,05). Os obesos apresentaram maior PS e IP (p<0,05), porém G1 apresentou maior percentual de S (p<0,05). A periodontite esteve associada ao DM (OR= 3,67; IC 95%= 1,80-7,48; p= 0,000). O impacto bucal na QV foi baixo e a SV não diferiu entre os grupos (p>0,05). Após a CB, houve redução das medidas antropométricas e IP em G1 e G2 (p<0,05) e melhora na SV (p>0,05). A QV foi correlacionada com idade (r=0,165; p=0,043) e dentes perdidos (r=0,446; p=0,000); SV correlacionou-se com RCQ (r=0,196; p=0,016) e IP (r=-0,201; p=0,013). Após a CB, SV correlacionou-se com IMC (r=-0,581; p=0,002) e idade (r=- 0,451; p=0,024) em PO 6m, e com IMC (r=-0,424; p=0,035) em PO 12m. Após a CB, houve melhora da higiene bucal e aumento da satisfação com a vida independente do grupo e não houve diferenças para as demais variáveis analisadas.
The objective was to evaluate the periodontal conditions and oral hygiene, quality of life and overall satisfaction with life in diabetic and non-diabetic obese patients undergoing bariatric surgery (BS). Prospective longitudinal observational study which included initial sample of 150 subjects (G1- diabetic obese n = 50; non-diabetic obese G2, n = 50 and G3-eutrophic, n = 50). G1 and G2 were subjected to BS and evaluated after six (PO 6m, n = 18, G1, G2, n = 34) and 12 months (PO 12m, n, G1 = 10, G2 = 15-n). Body Mass Index (BMI), waist circumference (WC) and hip (QC) and Waist-Hip Ratio (WHR) were used. Oral examinations were performed by one examiner (kappa> 0.81), evaluating bleeding (B), probing depth (PD), clinical attachment level (CAL), plaque index (PI), gingivitis, periodontitis and tooth loss. OHIP-14 and Satisfaction with Life Scale (LS) were applied, besides the registration of socioeconomic, habits and medical history conditions. In the data analysis were applied ANOVA post hoc Tukey, Kruskal-Wallis post hoc Dun, Friedman, Student t test, Mann-Whitney, odds ratio, 95% confidence interval, chi-square and Pearson correlation (p <0.05). Females were the most prevalent G1-80,00%; G2-90,00%; G3-80,00%) and mean age was 43.48 ± 8.99-G1, 38.70 ± 8.52-G2 and 40.22 ±12.35-G3. There were differences regarding education, occupation, income, hypertension and alcohol consumption (p <0.05). Obese had higher PD and (p <0.05), however G1 showed higher percentage of S (p <0.05). The periodontitis was associated with DM (OR = 3.67; 95% CI = 1.80 to 7.48; p = 0.000). The oral impact on QOL was low and LS did not differ between groups (p> 0.05). After the CB, there was a reduction of the anthropometric measurements and PI in G1 and G2 (p <0.05) and improved LS (p> 0.05). QOL was correlated with age (r = 0.165; p = 0.043) and missing teeth (r = 0.446; p = 0.000); LS correlated with WHR (r = 0.196; p = 0.016) and PI (r = -0.201; p = 0.013). After CB, LS was correlated with BMI (r = -0.581; p = 0.002) and age (r = - 0.451; p = 0.024) in PO 6m, and with BMI (r = -0.424; p = 0.035) in PO 12m. After the CB, there was improvement in oral hygiene and increased in life satisfaction independent of the group and there were no differences for the other variables analyzed.
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Söder, Birgitta. "Studies on plaque distribution and gingival crevicular fluid after non-surgical treatment in smokers and non-smokers with periodontal diseases." Stockholm, 1998. http://diss.kib.ki.se/1998/91-628-2887-8/.

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Marsicano, Juliane Avansini. "Estudo longitudinal prospectivo sobre problemas bucais em pacientes bariátricos." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/25/25144/tde-02092013-104307/.

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Esta pesquisa objetivou avaliar as alterações bucais, como cárie dentária, doença periodontal, desgaste dentário e fluxo salivar em pacientes bariátricos. A amostra foi constituída por 21 pacientes obesos submetidos à cirurgia bariátrica e acompanhados após 3 (3M), 6 (6M) e 12 (12M) meses, e por 16 pacientes não obesos submetidos à colecistectomia (GC). As condições bucais avaliadas foram: cárie (CPOD e ICDAS II), doença periodontal (IPC), desgaste dentário (IDD) e o fluxo salivar. Os questionários BAROS e OIDP foram utilizados para verificar a qualidade de vida e o impacto da saúde bucal. Os testes de Mann-Whitney, Friedman, Wilcoxon e Coeficiente de Correlação de Spearman foram aplicados (p<0,05). O CPOD médio foi de 18,0±3,4; 18,7±3,4; 18,9±4,6; 19,0±4,5 e 14,8±7,2 para PRÉ, 3M, 6M, 12M e GC, respectivamente (p>0,05). Após a cirurgia bariátrica os pacientes apresentaram aumento significativo na incidência de lesões cariosas iniciais (PRÉ= 28,6%; 3M= 4,8%; 6M=42,8%; 12M= 71,4%; e GC=75,0%). A condição periodontal não se alterou após a cirurgia bariátrica (bolsa periodontal- PRÉ= 57,1%, 3M= 52,4%; 6M= 38,1%; 12M= 76,2%; GC= 31,2%) (p>0,05). Todos os pacientes apresentaram algum grau de desgaste dentário, sendo que os valores IDD foram PRÉ=1,3±0,2; 3M=1,3±0,3; 6M=1,4±0,3; 12M=1,4±0,3 e GC=1,5±0,3. Incidência e severidade de desgaste dentário aumentaram após a cirurgia bariátrica (p= 0,000). A média do fluxo salivar não sofreu alteração após a cirurgia bariátrica e foi maior quando comparada ao GC (p>0,05). Houve correlação apenas entre redução do fluxo salivar e desgaste dentário no 12M (r= -0,458; p<0,05). De acordo com o protocolo BAROS, os pacientes submetidos à cirurgia bariátrica relataram que sua qualidade de vida melhorou após procedimento cirúrgico, verificou diferença significativa apenas entre os períodos 3M e 12M (p=0,003). Verificou-se que impacto da saúde bucal na qualidade de vida dos pacientes após a cirurgia bariátrica é menor (PRÉ=19,4±31,4; 3M=5,6±9,1; 6M=5,4±11,3; 12M=11,8±23,2)(p>0,05). Conclui-se que a cárie dentária e o desgaste dentário agravaram após a cirurgia bariátrica, necessitando de atenção em saúde bucal desde pré-operatório. Entretanto, as alterações na condição bucal parecem não influenciar a qualidade de vida.
The aim of this study was to evaluate oral health changes such as dental caries, periodontal disease, dental wear and salivary flow in bariatric patients. The sample consisted on 21 obese patients who had been submitted to bariatric surgery and followed up for 3 (3M), 6 (6M) and 12 (12M) months and also on 16 patients not obese submitted to cholecystectomy (CG). Oral conditions evaluated: dental caries (DMFT and ICDAS II), periodontal disease (CPI), dental wear (DWI) and salivary flow. Such BAROS as OIDP surveys were utilized to verify quality of life and oral health impact. Mann-Whitney, Friedman, Wilcoxon and Spearman`s Correlation Coefficient tests were applied (p<0.05). The mean of DMFT was 18.0±3.4; 18.7±3.4; 18.9±4.6; 19.0±4.5; and 14.8±7.2 to PRE, 3M, 6M, 12M and GC respectively (p>0.05). After bariatric surgery, patients presented significant increase in the incidence of initial carious lesions (PRE= 28.6%; 3M= 4.8%; 6M=42.8%; 12M= 71.4%; and GC=75.0%). Periodontal condition did not change after bariatric surgery (periodontal pocket PRE= 57.1%, 3M= 52.4%; 6M= 38.1%; 12M= 76.2%; GC= 31.2%) (p>0.05). All patients presented certain degree of dental wear, considering that the DWI values were PRE=1.3±0.2; 3M=1.3±0.3; 6M=1.4±0.3; 12M=1.4±0.3 and GC=1.5±0.3. Incidence and severity of dental wear have increased after bariatric surgery (p= 0.000). The mean of salivary flow did not change after bariatric surgery and was the same when compared to GC (p>0.05). There was correlation only between salivary flow and dental wear in 12M (r= -0.458; p<0.05). According to BAROS protocol, patients submitted to bariatric surgery reported that quality of life has improved after surgical procedure and significant difference was verified only among 3M and 12M periods (p=0.003). It was verified that oral health impact on patients quality of life after bariatric surgery is minor (PRE= 19.4±31.4; 3M= 5.6±9.1; 6M= 5.4±11.3; 12M= 11.8±23.2) (p>0.05). In conclusion, dental caries and dental wear worsened after surgery, requiring oral health care since preoperative. However changes in oral conditions do not seem to influence quality of life.
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Books on the topic "Periodontal surgery"

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Pick, Robert M. Esthetic periodontal surgery. Vancouver: Clinical Topics in Dentistry, University of British Columbia, 1996.

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Mamdouh, Karima, ed. Practical periodontal plastic surgery. Ames, Iowa: Blackwell Munksgaard, 2006.

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Dibart, Serge, and Mamdouh Karima, eds. Practical Periodontal Plastic Surgery. Ames, Iowa, USA: Blackwell Publishing Professional, 2006. http://dx.doi.org/10.1002/9780470344637.

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Dibart, Serge, ed. Practical Advanced Periodontal Surgery. Oxford, UK: Blackwell Munksgaard, 2007. http://dx.doi.org/10.1002/9780470376416.

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Dibart, Serge. Practical Periodontal Plastic Surgery. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119014775.

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Nares, Salvador, ed. Advances in Periodontal Surgery. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-12310-9.

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Atlas of periodontal surgery. Philadelphia: Lea & Febiger, 1988.

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Itō, Teruo. Color atlas of periodontal surgery. London: Mosby-Wolfe, 1994.

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Cohen, Edward S. Atlas of cosmetic and reconstructive periodontal surgery. 2nd ed. Philadelphia: Lea & Febiger, 1994.

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Cohen, Edward S. Atlas of cosmetic and reconstructive periodontal surgery. 3rd ed. Hamilton, Ont: BC Decker, 2007.

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Book chapters on the topic "Periodontal surgery"

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Held, Arthur-Jean. "Periodontal surgery." In Periodontology, 128–29. Basel: Birkhäuser Basel, 1989. http://dx.doi.org/10.1007/978-3-0348-6402-2_39.

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Floyd, Peter, and Richard Palmer. "Periodontal Surgery." In BDJ Clinician’s Guides, 107–26. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-76243-8_7.

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Nordland, W. Peter, and Laura M. Souza. "Periodontal Plastic Surgery." In Ronald E. Goldstein's Esthetics in Dentistry, 1180–211. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119272946.ch37.

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Niemiec, Brook A. "Periodontal Flap Surgery." In Veterinary Periodontology, 206–48. West Sussex, UK: John Wiley & Sons, Inc,., 2013. http://dx.doi.org/10.1002/9781118705018.ch16.

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Belcher, James. "Periodontal Microsurgery." In Practical Periodontal Plastic Surgery, 13–20. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119014775.ch4.

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Narvekar, Aniruddh, Kevin Wanxin Luan, and Fatemeh Gholami. "Decision Trees in Periodontal Surgery: Resective Versus Regenerative Periodontal Surgery." In Advances in Periodontal Surgery, 23–41. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-12310-9_2.

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Honigman, Allen S., and John Sulewski. "Lasers in Periodontal Surgery." In Advances in Periodontal Surgery, 71–83. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-12310-9_5.

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Taylor, Shelley Segrest. "Periodontal Disease." In Encyclopedia of Otolaryngology, Head and Neck Surgery, 2133. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-23499-6_200156.

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Dibart, Serge, Mamdouh Karima, and Drew Czernick. "Definition and Objectives of Periodontal Plastic Surgery." In Practical Periodontal Plastic Surgery, 1–3. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119014775.ch1.

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Levine, Robert A., and Preston Dallas Miller. "The Miller McEntire Periodontal Prognostic Index (i.e., “The Perio Report Card”) Usage in Practice." In Advances in Periodontal Surgery, 3–21. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-12310-9_1.

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Conference papers on the topic "Periodontal surgery"

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Adhyatmakasukha and Poernomo Agoes Wibisono. "Periodontal Flap Surgery with Bone Grafts for Periodontal Abscesses on Patients with High SGPT and SGPT Level: A Case Report." In The 7th International Meeting and The 4th Joint Scientific Meeting in Dentistry. SCITEPRESS - Science and Technology Publications, 2017. http://dx.doi.org/10.5220/0007291000090012.

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Shady, Sally F., and Stephen McCarthy. "Effects of Vinyl Acetate Content and Extrusion Temperatures on Ethylene Vinyl Acetate (EVA) Tetracycline HCL Fibers Used for Periodontal Applications." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66216.

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Periodontal disease is a prevalent disease that effects all types of ages. Mild cases of periodontal disease include infection and gingivitis. Severe cases of periodontal disease include loss of teeth, and the increased likelihood of systemic diseases such as: cancer, osteoporosis and pneumonia. Current treatments of periodontal disease include systemic approaches such as oral tablets of antibiotics or localized treatments such as the periodontal chip. Oral antibiotics require high dosages to effectively treat the infection therefore causing unwanted side effects. Other treatments include surgery, scaling and rooting. These methods have disadvantages as they are more invasive and require long term maintenance. The aim of this study was to develop a periodontal fiber containing Tetracycline HCl and ethylene vinyl acetate (EVA) that can be implanted in the periodontal pocket and demonstrate a drug release for up to 10 days. To develop this drug-embedded fiber, ethylene vinyl acetate and tetracycline HCL were combined and subsequently formed into a fiber. First, both materials were melted and mixed for several minutes in a Brabender mixer. The resulting material was then pelletized and the fiber was synthesized using the hot melt extrusion process. To produce the most optimal fiber, various vinyl acetate contents were mixed and extruded at high and low processing temperatures. The fiber uniformity, tensile strength, and drug release was tested on three groups: 40% vinyl acetate with low processing temperatures, 40% vinyl acetate with high processing temperatures and 7% vinyl acetate with low processing temperatures. To test the uniformity of the fiber, an inline IR reader was used to monitor the outer diameter of the fiber. Since a 0.5mm would be easily implanted into the periodontal pocket, this was the desired fiber dimension. The Instron was used to analyze the tensile strength of each group to ensure that the fiber was durable enough to withstand the harsh environment of the oral cavity. For the drug release testing the fibers were placed into H2O and incubated to 37°C. Samples from the release media were taken at various time intervals for a total of 10 days. The samples were tested on the UV spectrophotometer for peak absorbances at 360nm. The IR reader testing showed that the Elvax 40W (40% vinyl acetate content) material was easier to extrude than the Innospec (7% vinyl acetate content). The tensile strength tests of the fibers were approximately 0.025 ± 0.05 MPa. In-vitro drug release studies indicated that the low processing temperatures fibers released approximately three times the amount of tetracycline HCl than the high processing temperature group. This indicated that the fibers with low processing temperatures had the most favorable drug release profiles for bacterial inhibition. The overall feasibility for the periodontal fiber application was demonstrated in the 40% vinyl acetate group at lower processing temperatures and has shown the potential for multiple antimicrobial applications.
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Kesler, Gavriel, Rumelia Koren, Anat Kesler, Don Kristt, and Rivka Gal. "Periodontal plastic surgery: thermal effect analysis using Erbium:YAG Kesler's handpiece. Histochemical evaluation by Picrosirius red stain and polarization microscopy for collagen determination: in." In BiOS 2000 The International Symposium on Biomedical Optics, edited by John D. B. Featherstone, Peter Rechmann, and Daniel Fried. SPIE, 2000. http://dx.doi.org/10.1117/12.380808.

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Reports on the topic "Periodontal surgery"

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Hutton, Stephen B. Preoperative Use of lntranasal Ketorolac Tromethamine (Sprix) in Periodontal Flap Surgery. Fort Belvoir, VA: Defense Technical Information Center, May 2015. http://dx.doi.org/10.21236/ad1012707.

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