Relevant bibliographies by topics / Plastics in prosthodontics

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Academic literature on the topic 'Plastics in prosthodontics'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "Plastics in prosthodontics"

1

Dubey, Surekha Godbole, Tanvi Rajesh Balwani, Aditi Vinay Chandak, and Samidha Pande. "Material in Maxillofacial Prosthodontics – A Review." Journal of Evolution of Medical and Dental Sciences 9, no. 44 (November 2, 2020): 3319–24. http://dx.doi.org/10.14260/jemds/2020/729.

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As there is an increase in the rate of oral cancer,the surge for the various maxillofacial materials is increasing as well. Materials used for rehabilitation of congenital or acquired defects of patients should fulfil the requirements such as function, longevity, and aesthetics. Defects of face which may be congenital or acquired makes the condition of the affected person very disastrous mentally, physically as well as emotionally. Patient wants facial rehabilitation for a healthy happy life. To provide rehabilitation of these patients, re-evaluation of materials used in the field of maxillofacial prosthesis seems essential. Maxillofacial material should best suit the ideal selection criteria to satisfy the functionality, biocompatibility, aesthetics as well as durability. While the new materials have exhibited many desirable properties, there are also many insufficiencies involved in it. This article presents a systemic review of the evolution, current trends, and future requirements in maxillofacial materials for ensuring psychological well-being. In the recent years, a dramatic increase in the demand for prosthetic rehabilitation of patients with facial defects is seen. Increasing awareness of cancer is resulting in earlier diagnosis and treatment. Unfortunately, many of the surgical techniques are extensive and thus leave large defects that compromise not only function and aesthetics, but also psychosocial status of the patient. These problems require prompt rehabilitation with surgery or prosthetics.1 However, surgical reconstruction is often contraindicated in the presence of large defects or in high-risk patients. Prosthesis offers the advantage of quick, reversible and medically uncomplicated rehabilitation. In addition, the restoration may be readily removed to allow evaluation of the health of the underlying tissues. Historically, many types of materials have been used. Wood, wax metals, vulcanite and many types of plastics have been used as rigid materials while flexible ones like gelatin glycerine mixtures, latex and elastic plastics have also found some usefulness.2 Presently, materials used for the maxillofacial prosthesis are vinyl plastics, polyurethane, silicone rubber and acrylic types. KEY WORDS Maxillofacial-Materials, HTV (High Temperature Vulcanized) Silicone, RTV Silicone
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2

Abd El-Fattah, Ahmed, Heba Youssef, Mohamed Abdel Hady Gepreel, Rafik Abbas, and Sherif Kandil. "Surface Morphology and Mechanical Properties of Polyether Ether Ketone (PEEK) Nanocomposites Reinforced by Nano-Sized Silica (SiO2) for Prosthodontics and Restorative Dentistry." Polymers 13, no. 17 (September 5, 2021): 3006. http://dx.doi.org/10.3390/polym13173006.

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In the field of orthopedics and traumatology, polyether ether ketone (PEEK) serves a significant role as a suitable alternative to traditional metal-based implants like titanium. PEEK is being used more commonly to replace traditional dental products. For bonding with various adhesive agents and preserved teeth, the surface alteration of PEEK was investigated. The aim of this research was to understand how different types and contents of nano-sized silica (SiO2) fillers influenced the surface and mechanical properties of PEEK nanocomposites used in prosthodontics. In this work, PEEK based nanocomposites containing hydrophilic or hydrophobic nano-silica were prepared by a compression molding technique. The influence of nano-SiO2 type and content (10, 20 and 30% wt) on surface properties of the resultant nanocomposites was investigated by the use of scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), surface roughness analysis, and contact angle measurement. The crystalline structures of PEEK/SiO2 nanocomposites were examined by X-ray diffraction (XRD) spectroscopy. Mechanical properties were measured by microhardness, elastic compression modulus, and flexural strength. All nanocomposites showed increased surface roughness compared to pure PEEK. SEM images revealed that nanocomposites filled with low content hydrophobic nano-SiO2 showed uniform dispersion within the PEEK matrix. The introduction of 10 wt% of hydrophobic nano-SiO2 to the PEEK matrix improved elastic modulus, flexural strength, and microhardness, according to the findings. The addition of nano-SiO2 fillers in a higher weight percentage, over 10%, significantly damages the mechanical characteristics of the resultant nanocomposite. On the basis of the obtained results, PEEK/SiO2 nanocomposites loaded with low content hydrophobic nano-SiO2 are recommended as promising candidates for orthopedic and prosthodontics materials.
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3

Kuz, V. S., V. M. Dvornyk, G. M. Kuz, G. M. Balya, and O. S. Shemetov. "SURVEY OF A FUNCTIONAL STATE OF MASSETER MUSCLES IN EDENTELOUS PATIENTS BASED ON THE DATA OF SURFACE ELECTROMYOGYOPHY STUDIES." Ukrainian Dental Almanac, no. 3 (September 6, 2019): 40–48. http://dx.doi.org/10.31718/2409-0255.3.2019.07.

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The difficulty of prosthetics and rehabilitation of patients with complete loss of teeth is associated with a burdened psychological and anatomical status. The main reasons for teeth extractions are periodontal tissue diseases, diseases of hard tooth tissues of carious and non-carious origin and traumas. Complete loss of teeth leads to a large number of local and general complications. The masticatory apparatus undergoes a number of functional and morphological changes. It becomes necessary to manufacture complete removable dentures to prevent the occurrence of pathologies in such situations. The effectiveness at this type of dentures depends on compliance with the protocols of their fabrication and the quality of the basic dental materials. Currently, prosthodontists use thermoplastic plastics in the fabrication of complete removable prostheses, more commonly the main group of materials for this constructions are heat-polymerized acrylic resins. Evaluation of the quality of the fabricated complete removable dentures and of the functional state of the masticatory system after prosthetics is determined by their fixation and stabilization, restoration of the patient's appearance and degree of masticatory effectiveness. It can be determined by using of a surface electromyography an objective method for evaluation of the functional state of muscles by recording of their electrical biopotentials. The aim of our study was to study the functional state of the masseter muscles using surface electromyography in edentulous patients, who got dentures made from a thermoplastic base material «Vertex ThermoSense» in the prosthodontics clinic. Material and methods. We used polyamide (nylon) «Vertex ThermoSense», (Netherlands) in this work, for the fabrication of complete removable dentures. We made dentures for 19 elderly and senile patients (60 years and older) with a complete absence of teeth, who retired to the prosthodontics clinic with a goal of manufacturing new complete removable dentures for the upper and lower jaws. Over the past 3-5 years, they have been using complete removable dentures that were made from acrylic resins. Results. Assessing the results of the electromyographic study after 1 year of using of the dentures, it can be concluded that the amplitudes during compression approach the norm and almost four times higher than before prosthetics. A similar pattern as observed with the arbitrary chewing: the amplitudes approach the norm in comparison with the results before prosthetics. As for the coefficient «K», its value decreased in comparison with the results before prosthetics almost twice, which is largely close to the norm. Conclusion. Based on our study of the functional state of the masticatory muscles using surface electromyography in edentelous patients, who got dentures made polyamide thermoplastic material from a «Vertex ThermoSens», we can conclude that of electromyographic studies before prosthetic treatment are significantly different from normal, and after a year of using of dentures are as close as possible to them, which indicates a quiche adaptation to dentures.
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4

Dvornyk, V. M., H. M. Kuz, O. B. Tumakova, O. S. Shemetov, and V. S. Kuz. "RESULTS OF TREATMENT OF EDENTULOUS PATIENTS WITH DENTURES MADE OF «FTORAX»." Ukrainian Dental Almanac, no. 1 (March 31, 2020): 37–45. http://dx.doi.org/10.31718/2409-0255.1.2020.05.

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Background. The problem of providing high-quality dental care to edentulous patients remains one of the most important and unresolved to this day in the clinic of prosthodontics. The causes of complete loss of teeth can be both periodontal tissue diseases and diseases of hard tooth tissues of carious and non-carious origin, trauma and the like. It becomes necessary to fabricate complete removable dentures to prevent the occurrence of pathologies in such situations. Complete secondary adentia leads to a large number of local and general complications. The chewing apparatus undergoes a number of functional and morphological changes. Therefore, the complete absence of teeth sets the dentist the task of restoring the functions of full chewing, the appearance of the patient, and speech. The complexity of high-quality prosthetics for edentulous patients is also because the clinical characteristics of supporting tissues are diverse, constantly changing, so a personal approach to creating stable denture is needed. It should be added that the fabrication of high-quality complete removable dentures largely depends on the properties of the base material. The main group of materials for the fabrication of such dentures is acrylic plastics. The aim. The work is focused on the study of the functional state of the masticatory muscles and the restoration of masticatory effectiveness in edentulous patients, for whom dentures were made in the prosthodontics clinic from the acrylic base material «Ftorax». Material and methods. Hot curing plastic based on fluorine-containing acrylic copolymers «Ftorax» was used in the work. Our evaluation of the quality of all constructions was carried out using the «BOFSAS» test, determining the biopotentials of the masticatory muscles using electromyography, and determining the masticatory effectiveness according to I.S. Rubinov. Results. Based on our work, it can be noted that the use of the basic acrylic material «Ftorax» allows us to achieve good fixation and stabilization of complete removable dentures, which is subjectively confirmed by the «BOFSAS» test, objectively – by the electromyographic studies and time indices during chewing test according to I.S. Rubinov. The amplitude during volitional compression is 556.90±8.72 μV, which approaches the norm (641.58±10.01 μV), and almost four times higher than before prosthetics (188.11±8,13 μV) after 1 year of constructions using. A similar pattern is observed with arbitrary chewing: the amplitude (547.32±8.43 μV) approaches normal (643.92±9.11 μV) compared with the results before prosthetics (201.40±9.39 μV). As for the coefficient «K», its value decreased almost twofold compared with the results before prosthetics (2.44±0.14) and equals to 1.25±0.03, which is significantly closer to normal (1,02±0.01). After the test by Rubinov the following results were obtained: the average time that patients with intact dentitions spent chewing on the stimulus was approximately 12.97±0.13 seconds and the average time for patients before prosthetics (with old dentures) was approximately 45.16±0,41 sec. The time that patients spent chewing a nut after 1 month was 28.97±0.42 seconds, after 6 months – 26.94±0.44 seconds, and after 1 year of using the entures – 25.48±0.45 sec. Based on this, it can be summarized that adaptation to such dentures takes place at the appropriate time with minor corrections. Conclusion. The results of our clinical study indicate the feasibility of using «Ftorax» in prosthodontics clinic for treatment of edentulous patients.
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5

Bolat, Maria, Dana Gabriela Bosinceanu, Ioan Gabriel Sandu, Dan Nicolae Bosinceanu, Zinovia Surlari, Carina Balcos, Oleg Solomon, and Anca Vitalariu. "Comparative Study on the Degree of Bacterial Biofilm Formation of Dental Bridges Made from Three Types of Materials." Materiale Plastice 56, no. 1 (March 30, 2019): 144–47. http://dx.doi.org/10.37358/mp.19.1.5140.

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The aim of this study was to compare the biofilm formation on three types of dental crown materials using adenosine triphosphate (ATP) driven bioluminescence as an innovative tool for the rapid chairside enumeration of oral bacteria and assessment of oral hygiene. The study group included 60 patients with fixed prosthodontics, made of three types of dental crown materials (BioHpp - Bredent, Ceramics - VITA VMK Master, and Zirconia - Vita In-Ceram) from which we have collected 60 specimen values using a luciferase-based assay system (system SURE II). The values of ATP were obtained with System SURE II device and statistically analyzed with Anova and Wilcoxon Test. The lowest value was shown for Zirconia, comparing with ceramics and BioHpp, but in time we have seen the increase of ATP for all three dental crown materials.
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6

Earar, Kamel, Oleg Solomon, Gabi Topor, Iulian Constantin, Adrian Beznea, Ciprian Adrian Dinu, Lucretia Anghel, et al. "Comparison Study on the Influence of Al2O3 Nanoparticle Size and Ternary Hybrid on Several Properties of a PMMA Denture Composite." Materiale Plastice 58, no. 2 (July 5, 2021): 119–29. http://dx.doi.org/10.37358/mp.21.2.5483.

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In esthetic restorative dentistry, resin composites are generally encountered. Because of their excellent biocompatibility, lack of taste, odour, tissue discomfort, and toxicity, insolubility in body fluids, ease of use, good clinical/ aesthetic properties, stable colours, optical characteristics, efficient pigmentation, low cost, and repairability, they are becoming more common. Currently used composite resins have some flaws, particularly inconsistent mechanical properties. For a long time, particles of various sizes have been used as fillers to enhance these properties. In prosthodontics, poly(methyl methacrylate) (PMMA) is commonly used as a dental base material. It does, nevertheless, have several weaknesses, including low strength and weak thermal properties. The effects of different sizes of alumina (Al2O3) particles on the poly(methyl ethacrylate) (PMMA) denture base were determined in this experiment. PMMA powder was blended with Al2O3 added to methyl methacrylate (MMA).For PMMA polymeric materials strengthened with Al2O3 (40 nm, 140 nm and 0.3-0.8 μm) in various concentrations, the mechanical properties were studied.Also, the synergetic influence of the three nanoparticle sizes in the resin matrix was studied.Furthermore, thermogravimetric (TGA) analysis and water absorption and solubility characteristics of the composites prepared were also examined. Among the most significant properties to be obtained for good denture materials is high mechanic properties, water absorption and solubility, since they have different attributes in the aqueous condition of the oral cavity. Results showed clear properties optimization, especially for the size-hybrid alumina composites.
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7

UTYUZH, A., D. NIKOLENKO, A. YUMASHEV, I. VOLCHKOVA, and V. SAMUSENKOV. "ADHESION OF PERIODONTAL PATHOGENS TO MATERIALS USED FOR LONG-TERM TEMPORARY CROWNS." Periódico Tchê Química 16, no. 33 (March 20, 2019): 60–69. http://dx.doi.org/10.52571/ptq.v16.n33.2019.75_periodico33_pgs_60_69.pdf.

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Provisional crowns are widely used in prosthodontic treatment in dentistry, and new materials for temporary crowns, including polyetheretherketone, have emerged, which have high-quality requirements for use in long-term temporary prosthetics. Of particular importance in prosthetics are the features of adhesion of pathogenic oral microflora to orthodontic structures. This study evaluated the adhesion of cariogenic and pathogenic periodontal bacterial flora and Candida species to unpolished and polished Dentokeep polyetheretherketone (PEEK), polished polymethyl methacrylate (PMMA) material (Re-Fine Acrylic), and hotcuring acrylic plastic ─ a powder-liquid type, where the powder is a suspension graft fluorine-containing copolymer, and the liquid is a mixture of acrylic monomers, and oligomers─(Sinma-M) recommended for manufacturing long-term temporary crowns. The effect of polishing or un-polishing the study material on the adhesion of various microorganisms was studied. Polishing of Dentokeep PEEK significantly influenced primary adhesion. Microbial adhesion to sample materials was studied using ultrasonic cavitation. Adhesion of microorganisms to each material was categorized as low (0–0.27), moderate (0.28–0.69), or high (0.70–1). Streptococcus sanguinis, Prevotella intermedia, and Candida albicans adhered moderately to unpolished Dentokeep PEEK, whereas Porphyromonas gingivalis and Candida krusei were highly adherent. Candida species and P. intermedia pathogenic periodontal strain moderately adhered to polished Dentokeep PEEK, whereas S. sanguinis and P. gingivalis were highly adherent. Temporary crowns require additional hygienic measures to eradicate cariogenic (acidogenic), pathogenic periodontal, and fungal microbiota and maintain the normal qualitative and quantitative composition of oral microbiocenosis during prosthodontic treatment. In conclusion, PEEK is a promising material for the manufacture of long-term temporary crowns.
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8

Tuna, Elif Bahar, Mehmet Ozgen, Abdulkadir Burak Cankaya, Cenk Sen, and Koray Gencay. "Oral Rehabilitation in a Patient with Major Maxillofacial Trauma: A Case Management." Case Reports in Dentistry 2012 (2012): 1–5. http://dx.doi.org/10.1155/2012/267143.

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Traumatic injuries may cause anatomic deficiencies in soft and hard tissues. These defects often result in the loss of attached mucosa and alveolar processes, which might reduce potential prosthesis support and require bone and skin grafting. As a result of major maxillofacial trauma, complete or partial avulsion of the palate may require extensive surgical and prosthodontic rehabilitation. The appropriate treatment for the maxillary defect demands a multidisciplinary approach by a team which consists of various fields of dentistry and medicine. The planning prostheses should replace not only missing teeth but also lost soft tissues and bone, and they should include the hard palate, residual alveolar ridges, and, in some instances, the soft palate. This paper describes the treatment procedures including plastic surgery operation procedures and prosthetic rehabilitation in a 19-year-old woman after her severe bicycle accident.
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9

Ajlouni, Raed. "The Art of the Smile: Integrating Prosthodontics, Orthodontics, Periodontics, Dental Technology, and Plastic Surgery in Esthetic Dental Treatment." Journal of Prosthodontics 15, no. 2 (March 2006): 147–48. http://dx.doi.org/10.1111/j.1532-849x.2006.00089_2.x.

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10

Levin, E. "The art of the smile: Integrating prosthodontics, orthodontics, periodontics, dental technology and plastic surgery in esthetic dental treatment." British Dental Journal 199, no. 6 (September 2005): 397. http://dx.doi.org/10.1038/sj.bdj.4812800.

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Books on the topic "Plastics in prosthodontics"

1

Preprosthetic and maxillofacial surgery: Biomaterials, bone grafting and tissue engineering. Oxford: Woodhead Pub., 2011.

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International Symposium on Fibre-Reinforced Plastics in Dentistry (1st 1998 Turku, Finland). The first International Symposium on Fibre-Reinforced Plastics in Dentistry: A special symposium of the annual meeting of the European Prosthodontic Association (EPA) on 26-27 August 1998 in Turku, Finland. Edited by Vallittu Pekka K and European Prosthodontic Association. Turku: Department of Prosthetic Dentistry & Biomaterials Project, Institute of Dentistry, University of Turku, 1999.

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(Editor), Rafi Romano, Nitzan Bichacho (Editor), and Bernard Touati (Editor), eds. The Art Of The Smile: Integrating Prosthodontics, Orthodontics, Periodontics, Dental Technology, And Plastic Surgery In Esthetic Dental Treatment. Quintessence Publishing (IL), 2005.

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4

1938-, Zarb George A., Bolender Charles L, and Eckert Steven E, eds. Prosthodontic treatment for edentulous patients: Complete dentures and implant-supported prostheses. St. Louis: Mosby, 2004.

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Zarb, George A., Charles L. Bolender, Steven E. Eckert, Aaron H. Fenton, Rhonda F. Jacob, and Regina Mericske-Stern. Prosthodontic Treatment for Edentulous Patients: Complete Dentures and Implant-Supported Prostheses. Mosby, 2003.

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6

J, Fonseca Raymond, and Davis W. Howard, eds. Reconstructive preprosthetic oral and maxillofacial surgery. 2nd ed. Philadelphia: Saunders, 1995.

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J, Fonseca Raymond, and Davis W. Howard, eds. Reconstructive preprosthetic oral and maxillofacial surgery. Philadelphia: Saunders, 1986.

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