The influence of disinfection on dimensional stability of temporary crowns

• Autor(a) principal: de Carvalho, Paula Carolina Komori
• Data de Publicação: 2018
• Outros Autores: Sacourague, Sâmia Carolina Mota, de Almeida, Lais Medeiros Ribeiro, Kimpara, Estevão Tomomitsu, Paes-Junior, Tarcisio José de Arruda
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Dental Science
• Texto Completo: https://ojs.ict.unesp.br/index.php/cob/article/view/1573

Objective: Evaluate the influence of different disinfection methods on the dimensional stability of temporary acrylic resin crowns. Material and Methods: A metallic die with two different marks at the margin was used to prepare the specimens with two different resins (bis-acrylic resin-Structur, acrylic resin-Dencrilay). They were divided into eight groups (n=8), determined according to the disinfection methods (microwave, acetic acid, 1% hypochlorite) and control. The marginal adaptation was recorded using an optical microscope (50X) comparing two different marks on the margin of the crowns with 2 points along the entire circumferential margin before and after disinfection methods. Results: Results were compared statistically by ANOVA and Tukey's test (p?0.05). The two-way ANOVA showed statistical difference between types of materials. No significant differences were found between disinfection methods and interaction of factors. Conclusion: All procedures affected the marginal adaptation however temporary crowns made by bis-acrylic resin demonstrate higher dimensional stability.KeywordsDimensional stability; Disinfection; Temporary crowns.