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Dent Mater J ; 40(5): 1151-1159, 2021 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-34024886


The purpose of this multicenter clinical study was to compare the mid-term clinical effectiveness of direct resin composite restorations using one-step or two-step self-etch adhesives (1-SEAs or 2-SEAs). In total, 352 restorations of class I-V cavities and non-carious cervical lesions in vital teeth (1-SEAs; 52 cases, 2-SEAs; 300 cases) were placed at nine university hospitals and evaluated according to the modified USPHS criteria at baseline, and after 1, 2, and 3 years. The recall rates were 86.6% (1 year), 80.1% (2 years), and 62.2% (3 years). Two restorations failed due to fracture during the follow-up, and there was no significant difference in survival rates between 1-SEAs (97.6%) and 2-SEAs (99.4%). However, 2-SEAs exhibited significantly lower occurrences of discoloration, marginal discoloration, fracture, and plaque retention. Moreover, the subjects reported a significantly lower postoperative hypersensitivity and higher overall satisfaction at all evaluation periods if 2-SEAs were used.

Restauração Dentária Permanente , Colo do Dente , Resinas Compostas , Cimentos Dentários , Adaptação Marginal Dentária , Adesivos Dentinários , Humanos , Cimentos de Resina , Resultado do Tratamento
Eur J Dent Educ ; 23(1): e17-e31, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30306676


OBJECTIVE: The objective of the present study was to evaluate the effectiveness of introducing integrated jaw models, rubric criteria and homework tasks to a total clinical simulation training course to improve the clinical competence of preclinical dental students. METHODS: A total simulation training course, which involved six clinical dentistry departments, was held for 110 preclinical students in 2014 and 2015. We prepared integrated jaw models having several morbidities along with corresponding medical information and homework tasks. The students formulated diagnoses and devised treatment plans before performing dental treatment on the mannequin under the direction of instructors from the respective clinical departments. Their performance was assessed by both students and instructors using the rubric criteria. RESULTS: Based on quantitative evaluations, the introduction of integrated jaw models appeared to improve the students' ability to formulate diagnoses and devise dental treatment plans and to understand the respective clinical dentistry disciplines. The rubric criteria provided immediate feedback for the students. Based on a comparison of rubric scores, students tended to significantly underestimate their own performance compared with instructors. Moreover, the introduction of homework tasks improved student seriousness. CONCLUSION: Introducing integrated jaw models, rubric criteria and homework tasks to a total simulation training course may be a good approach for improving student performance in terms of dental diagnoses and treatment.

Competência Clínica , Currículo , Modelos Dentários , Educação em Odontologia/métodos , Avaliação Educacional/métodos , Arcada Osseodentária , Estudantes de Odontologia/psicologia , Feminino , Humanos , Masculino , Manequins , Autoavaliação (Psicologia)
Compend Contin Educ Dent ; 30(9): 634-6, 638, 640 passim, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19998730


Removal of Invisalign resin retention buttons without damaging underlying enamel is a major challenge. To date, the use of tungsten carbide burs is the most common and fastest--yet a risky-ablation method. Stainbuster, a fiber-reinforced resin bur, has been introduced for removal of surface stains and resin remnants from tooth surfaces. This comparative in vitro and in vivo study proved that a combined technique, using multifluted tungsten carbide burs for fast removal of the bulk of resin followed by Stainbuster grinding for gentle removal of the final resin layer, is a safe and minimally invasive procedure for removing composite buttons from enamel.

Descolagem Dentária/métodos , Instrumentos Odontológicos , Braquetes Ortodônticos , Análise de Variância , Resinas Compostas , Esmalte Dentário/ultraestrutura , Remoção de Dispositivo , Humanos , Incisivo , Microscopia Eletrônica de Varredura , Propriedades de Superfície , Compostos de Tungstênio