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

Journal of Applied Oral Science

卷:18

Ivan Balducci¹  Carolina Chaves¹  Renata Marques de Melo¹  Graziela A. P. Galhano¹  Priscilla Cristoforides Pereira¹  Marco Antonio Bottino¹ 

[1] Universidade Estadual Paulista;

关键词: Root canal;    Resin Cements;    Raman spectroscopy;    Adhesives;   

DOI  :  10.1590/S1678-77572010000500008

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown