The influence of axial contour of ceramic veneers, without cervical finish line, on condition of the gingival margin: a prospective clincal study

Author(s)

Nara Santos Araujo

• Document type: Master's Dissertation
• Press: Araçatuba. 2016-09-30.
• Institution: Universidade Estadual Paulista (Unesp). Faculdade de Odontologia. Araçatuba
• Defense date: 2016-08-29
• Advisor: Eduardo Passos Rocha

Abstract

Purpose: To evaluate, through a prospective clinical study, the influence of ceramic veneers, cemented on teeth without cervical finish line, on the behavior of the gingival margin Materials and Methods: Seventy teeth with ceramic laminate veneers were evaluated. Neighboring unrestored teeth were used as control. The study factors were the treatment, the gingival biotype and the time analysis (T) on 7 levels [T0 (prior to treatment), T7 (7 days after cementation), T15 (15 days), T30 (30 days), T60 (60 days) T120 (120 days), and T180 (180 days after cementation)]. The response variables were gingival index (GI), plaque index (PI), and gingival recession, getting scores (Alfa, Beta, Charlie and Delta), according to the clinical condition. Digital photographs were taken in each time. Results: The analysis of the restored and control groups showed a higher prevalence of reputable elements "Alfa" for GI and PI variables. Lower records in "Beta" and "Charlie" were observed in the restored group, showing less plaque buildup in the restored surfaces. The horizontal overcontouring of restorations, did not increase the occurrence of inflammation of the gingival margin in the restored group compared to the control group, and 100% of the sample obtained concept "Alfa" to the variable gingival recession after 180 days of clinical follow-up. Conclusion: The presence of horizontal overcontouring did not change the vertical position of the gingival margin and did not cause a clinically perceptible periodontal inflammation. The gingival biotype did not influence the results. (AU)

• FAPESP's process: 14/11799-2 - Thin porcelain veneers cemented on unprepared teeth: prospective, blind, longitudinal clinical study about the influence on the integrity, shape and position of the gingival margin
• Grantee: Nara Santos Araujo
• Support Opportunities: Scholarships in Brazil - Master