Clinical performance of class I occlusal composite resin restorations: a multicenter double-blinded randomized clinical trial

Bruno Mendonça Lucena De Veras,José Guilherme Férrer Pompeu,Marlus Da Silva Pedrosa,Geórgia Pires Dos Santos Menezes,Marcelya Chrystian Moura Rocha,Raimundo Rosendo Prado Júnior,Aditonio De Carvalho Monteiro,Cláudio Heliomar Vicente Da Silva,Hugo Leonardo Mendes Barros

doi:10.14295/bds.2018.v21i3.1593

Abstract

Objective: The objective of this study was to evaluate the 6-month clinical performance of class I occlusal composite resin restorations through a multicenter, randomized, double-blind, clinical trial. Material e Métodos: Two hundred and eighty class I occlusal restorations were performed in 70 patients (aged between 17 to 50 years). The restorations were divided into four groups: G1 (Filtek P60/3M ESPE); G2 (Rok/SDI); G3 (Filtek™ P90/3M ESPE); G4 (Evolux/Dentsply). Two pre-calibrated dental practitioners performed and evaluated the restorative procedures regarding to color match, marginal discoloration, recurrent caries, wear (anatomic form) and marginal integrity according to the USPHS criteria. Resultados: In 85.8% of the evaluated restorations was observed the ideal score (A) for color match; 91.4% for marginal discoloration; 100% for recurrent caries; 87.7% for wear (anatomic form) and 99.3% for marginal integrity. Conclusion: The composite resins used in this study presented satisfactory and similar clinical performance in a 6-month clinical evaluation.KeywordsDentistry; Composite resins; Permanent dental restoration; Molar; Bicuspid.

Highlights

The constant improvement of the characteristics, restorative techniques, and aesthetic appeal are responsible for the increased popularization of composite resins among dentists and patients
The major causes of failure in composite resin restorations are attributed to the properties of the material itself, such as low wear resistance, high polymerization shrinkage, marginal infiltration and difficulty in obtaining a tight proximal contact, or to the operator
The direct clinical evaluation is characterized by collecting information inherent to the restorations directly in the oral cavity of the patient and subsequent registration in specific forms

Summary

Introduction

The constant improvement of the characteristics, restorative techniques, and aesthetic appeal are responsible for the increased popularization of composite resins among dentists and patients. In order to achieve success with composite resin restorations, knowledge of the adhesive restorative materials and the use of suitable techniques are necessary, otherwise, failures may occur [1,2]. The major causes of failure in composite resin restorations are attributed to the properties of the material itself, such as low wear resistance, high polymerization shrinkage, marginal infiltration and difficulty in obtaining a tight proximal contact, or to the operator (due to the sensitivity of the technique). The magnitude of the shrinkage depends on the resin matrix composition, the viscoelasticity of the composite and the insertion technique [6,7]

Methods

Results

Conclusion