The adhesive system and root canal region do not influence the degree of conversion of dual resin cement

Author(s)

Pereira, Priscilla Cristoforides ^[1] ; de Melo, Renata Marques ^[1] ; Chaves, Carolina ^[2] ; Galhano, Graziela A. P. ^[1] ; Bottino, Marco Antonio ^[1] ; Balducci, Ivan ^[3]

Affiliation

^[1] Sao Paulo State Univ, Sao Jose dos Campos Dent Sch, Dept Dent Mat & Prosthodont, Sao Jose Dos Campos, SP - Brazil

^[2] Sao Paulo State Univ, Araraquara Dent Sch, Araraquara, SP - Brazil

^[3] Sao Paulo State Univ, Sao Jose dos Campos Dent Sch, Dept Social Sci & Pediat Dent, Sao Jose Dos Campos, SP - Brazil

• Document type: Journal article
• Source: Journal of Applied Oral Science; v. 18, n. 5, p. 477-481, SEP-OCT 2010.
• Web of Science Citations: 7

Abstract

OBJECTIVES: The aim of this study was to evaluate the influence of two adhesive systems and the post space region on the degree of conversion of dual resin cement and its bond strength to root dentin. MATERIAL AND METHODS: One three-step etch-and-rinse (All-bond 2, Bisco) and another one-step self-etch (Xeno III, Dentsply) adhesive systems were applied on 20 (n=10) crownless bovine incisors, at 12-mm-deep post space preparation, and a fiber post (FRC Postec, Ivoclar) was cemented using a dual cure resin cement (Duo-Link, Bisco). Three transverse sections (3 mm) were obtained, being one from each study region (cervical, middle and apical). The degree of conversion of the dual cure resin cement was determined by a micro-Raman spectrometer. The data (%) were submitted to repeated-measures analysis of variance and Tukey's test (p<0.05). RESULTS: For both groups, the degree of conversion means (%) (All bond 2cervical = 69.3; All bond 2middle = 55.1; All bond 2apical= 56; Xeno III cervical = 68.7; Xeno IIImiddle = 68.8; Xeno III apical = 54.3) were not significantly different along the post space regions (p<0.05). CONCLUSION: Neither the adhesive nor the post space region influenced the degree of conversion of the cement layer. (AU)