Clinical assessment of two inlay-retained bridge designs in missing posterior teeth cases: a Randomized Clinical Trial

• Autor(a) principal: Soliman, Gomaa
• Data de Publicação: 2022
• Outros Autores: Mahallawi, Omaima, Hamdy, Iman
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Dental Science
• Texto Completo: https://ojs.ict.unesp.br/index.php/cob/article/view/2725

Objective: This study aimed to evaluate the clinical performance of two inlay-retained bridge designs (proximalshaped and inlay shaped) in single missing posterior teeth cases. Material and Methods: A total of 70 caseswith missing single posterior teeth were included in this study and divided into two groups with a 1:1 allocationratio (n = 35 for each group). Group 1 (the control group): this group received an inlay retained bridge withinlay design on both abutments. Group 2 (the intervention group): this group received an inlay retained bridgewith a proximal box on both abutments. PMMA resin (YAMAHACHI PMMA) was used for the try-in stage andmonolithic zirconia (Katana, Kuraray) was used for the final restorations. The restoration surfaces were treatedusing sandblasting and Z-prime S (Bisco) and the cementation was done by using self-adhesive resin cement(Bisco). Fracture, marginal adaptation, postoperative sensitivity, caries, and gingivitis were assessed using themodified United States Public Health Service for restoration clinical assessments (MUSPHS standards) over 12months of follow-up. Results: The results show there was no significant difference between the two groups.Kaplan-Meier survival curve was constructed to calculate the mean survival estimates of the two groups and wefound that the two groups were clinically successful during a one-year follow-up. Conclusion: Both designs ofinlay retained fixed dental prostheses revealed successful clinical performance in terms of Fracture, marginaladaptation, postoperative sensitivity, caries, and gingivitis.KEYWORDSFracture; Inlay-retained fixed dental prosthesis; PMMA; Resin cement; Zirconia.