Ceramic veneers cemented on no prep teeth. Prospective and longitudinal clinical study of marginal adaptation and evaluation of periodontal behavior using biomarkers of gingival crevicular fluid

Author(s)

Fernando Isquierdo de Souza

• Document type: Doctoral Thesis
• Press: Araçatuba. 2018-12-20.
• Institution: Universidade Estadual Paulista (Unesp). Faculdade de Odontologia. Araçatuba
• Defense date: 2018-11-06
• Advisor: Eduardo Passos Rocha; Sandra Helena Penha de Oliveira

Abstract

Objective: To quantify the biomarkers and gingival crevicular fluid (GCF) volume, with additional verification of the adaptation and marginal behavior of thin ceramic veneers cemented on teeth without cervical preparation, with the finish line gently positioned within the gingival sulcus. Materials and Met hods: 73 maxillary teeth were treated with monolithic lithium disilicate ceramic veneers . For all elements, the GCF was collected before cementation ( baseline) and at the study times (t0 -7 days, t4 180 days), which was calculated the GCF volume and the quantification of the biomarkers: TNF - α, IL - 1β, MMP -8 by ELISA. The neighboring or antagonist tooth was used as a control. Replicas of the cervical region were obtained in epoxy resin, in t0 and t4 to verify the marginal adaptation in a scanning electron mi croscope. Clinical e valuation was performed using the modified USPHS criteria at study times and at 1 year of follow -up (t5). Results: TNF - α and MMP -8 levels remained stable in the comparison of t4 with the baseline (p> 0.05). The concentration of IL- 1β in creased in t4 in the treated group compared to the baseline (p <0.05), but without significant statistical difference for the control group in t4 and baseline (p> 0.05). All the elements obtained alpha concept for clinical and microscopic evaluation. Concl usion: In the period of follow -up proposed by the present study, the protection periodont ium presented excellent clinical and biological behavior in relation to the treatment with ceramic veneers without cervical preparation, presenting no morphological and biochemical differ ences in comparison to untreated teeth. (AU)

• FAPESP's process: 15/14504-6 - Ceramic veneers cemented on no prep teeth: prospective and longitudinal clinical study of marginal adaptation and evaluation of periodontal behavior using biomarkers of gingival crevicular fluid
• Grantee: Fernando Isquierdo de Souza
• Support Opportunities: Scholarships in Brazil - Doctorate