Bond strength of dentin submitted to bleaching and restored with different materials

Journal Title: RSBO - Year 2012, Vol 9, Issue 3

Abstract

 Introduction: The use of adhesive composite resin with fluoride and with greater fluidity can be favorable to the restoration of the palatal/lingual face of teeth submitted to internal bleaching. Objective: This study evaluated the bond strength of adhesive systems and composite resins to bleached dentin. Material and methods: Forty maxillary canines were sectioned to obtain 40 blocks (5 x 5 mm) of intracoronary dentin. The fragments were included and bleached with 37% carbamide peroxide. After 7 days, the specimens were divided into two groups according to the adhesive system: with (Optibond Solo Plus) and without (Single Bond) fluoride and subdivided into 2 subgroups (n = 10) according to the composite resin: microhybrid (Z250) and flowable (Z350). The restoration was carried out through a bipartite matrix. After 24 hours, the specimens were subjected to shear bond strength test. The data (MPa) were analyzed by ANOVA and Tukey test (α = 0.05). Results: The best results (p < 0.05) were obtained for fluoridated adhesive (7.44 ± 2.35) compared with that without fluoride (5.36 ± 2.01); flowable resin (7.76 ± 2.23) performed better than microhybrid resin (5.03 ± 1.72). When the two variables were associated, the highest results were obtained for the specimens restored with fluoridated adhesive and flowable resin(9.04 ± 1.92). Lower results were observed for non-fluoridated adhesive + microhybrid resin – control (4.24 ± 1.59), without statistically.

Authors and Affiliations

Nelize Pessarello, Yara Sousa, Fuad Junior, Aline Gabriel

Keywords

Related Articles

Bond resistência de sistemas adesivos autocondicionantes à dentina profunda

Introdução e objecttiivee: Os sistemas adesivos autocondicionantes foram amplamente utilizado pelos dentistas e pesquisadores nos procedimentos de restaurações dentárias adesivas. O objetivo deste estudo foi avaliar a r...

Analysis of gutta-percha’s root canal filling capacity through three different obturation techniques

Introduction and objective: The aim of this study was to determine gutta-percha’s root canal filling capacity through three different filling techniques. Material and methods: Sixty single-rooted human teeth were cleaned...

Comparative analysis of two electronic apex locators in working length determination at endodontic therapy: an in vitro study

Introduction: Endodontic treatment comprises individual steps that should be effectively performed in order to achieve therapeutic success. Among these steps is the determination of the real tooth length, which prevents...

 Periapical cemento-osseous dysplasia: case report

 Introduction: Periapical cemento-osseous dysplasia is a pathologic entity resulting from bone and cementum reactional process which affects the periapical region of the anterior mandible. Its etiology is not fully...

Bond strength of contemporary restorative systems to enamel and dentin

Introduction and objective: New aesthetic restorative systems have been recently introduced in dental market. The objective of this study was to evaluate the bond strength of contemporary restorative systems to ground e...

Download PDF file
  • EP ID EP161621
  • DOI -
  • Views 216
  • Downloads 0

How To Cite

Nelize Pessarello, Yara Sousa, Fuad Junior, Aline Gabriel (2012).  Bond strength of dentin submitted to bleaching and restored with different materials. RSBO, 9(3), 286-291. https://europub.co.uk/articles/-A-161621