Dental Materials Journal
Online ISSN : 1881-1361
Print ISSN : 0287-4547
ISSN-L : 0287-4547
Original Paper
Bonding effectiveness of self-adhesive and conventional-type adhesive resin cements to CAD/CAM resin blocks. Part 1: Effects of sandblasting and silanization
Mami HIGASHIMariko MATSUMOTOAsuka KAWAGUCHIJiro MIURATakuya MINAMINOTomoshige KABETANIFumio TAKESHIGEAtsushi MINEHirofumi YATANI
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2016 Volume 35 Issue 1 Pages 21-28

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Abstract

The present study assessed the effect of sandblasting and silanization on resin cement bond strengths to CAD/CAM resin blocks. Twenty four blocks (KATANA AVENCIA BLOCK) were divided into two resin cement groups (PANAVIA V5 [PV5] and PANAVIA SA CEMENT HANDMIX [PSA]), and further divided into four subgroups representing different surface treatment methods: no treatment (Ctl), silanization (Si), sandblasting (Sb), and Sb+Si. After resin application, microtensile bond strengths (μTBSs) were measured immediately, 1, 3 and 6 months after water storage. In addition, surfaces resulting from each of the treatment methods were analyzed by scanning electron microscopy (SEM). Three-way analysis of variance revealed a statistically significant effect for the parameters ‘surface treatment’ (p<0.001, F=370), ‘resin cement’ (p<0.001, F=103, PSA<PV5), and ‘water aging’ (p<0.001, F=18). Control treatment yielded significantly lower μTBS values compared to other treatment subgroups (p<0.001). The highest bond strength was achieved with Sb+Si treatment. SEM revealed that sandblasting roughened surfaces.

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© 2016 The Japanese Society for Dental Materials and Devices
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