Research on bond durability among different core materials and zirconia ceramic cemented by self-adhesive resin cements

doi:10.7518/hxkq.2017.01.014

Abstract

Abstract:

Objective This research estimated shear bond durability of zirconia and different substrates cemented by two self-adhesive resin cements (Clearfil SA Luting and RelyX U100) before and after aging conditioning. Methods Machined zirconia ceramic discs were cemented with four kinds of core material (cobalt-chromium alloy, flowable composite resin core material, packable composite resin, and dentin) with two self-adhesive resin cements (Clearfil SA Luting and RelyX U100). All specimens were divided into eight test groups, and each test group was divided into two subgroups. Each subgroup was subjected to shear test before and after 10 000 thermal cycles. Results All factors (core materials, cements, and thermal cycle) significantly influenced bond durability of zirconia ceramic (P<0.00 1). After 10 000 thermal cycles, significant decrease was not observed in shear bond strength of cobalt-chromium alloy luted with Clearfil SA Luting (P>0.05); observed shear bond strength was significantly higher than those of other substrates (P<0.05). Significantly higher shear bond strength was noted in Clearfil SA Luting luted with cobalt-chromium alloy, flowable composite resin core material, and packable composite resin than that of RelyX U100 (P<0.05). However, significant difference was not observed in shear bond strength of dentin luted with Clearfil SA Luting and RelyX U100 (P>0.05). Conclusion Different core materials and self-adhesive resin cements can significantly affect bond durability of zirconia ceramic.

Key words: zirconia, core material, self-adhesive resin cement, bond durability

CLC Number:

R780.1

Xinyu Luo, Xiangfeng Meng. Research on bond durability among different core materials and zirconia ceramic cemented by self-adhesive resin cements[J]. West China Journal of Stomatology, 2017, 35(1): 89-92.

Figures/Tables 2

References 7

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核材料	树脂水门汀	冷热循环		t值	P值
核材料	树脂水门汀	前	后	t值	P值
流动型复合树脂核材料	Clearfil SA Luting	20.04±4.06^c	7.56±7.42^B	4.172	<0.001
	RelyX U100	15.47±6.68^b	0.08±0.14^A	6.512	<0.001
充填型复合树脂	Clearfil SA Luting	15.47±6.68^b	7.54±5.42^B	5.545	<0.001
	RelyX U100	19.03±5.96^b	0.46±0.61^A	8.753	<0.001
人牙本质	Clearfil SA Luting	9.97±3.63^a	0.51±1.13^A	7.018	<0.001
	RelyX U100	8.34±2.62^a	0.07±0.13^A	8.893	<0.001
钴铬合金	Clearfil SA Luting	32.39±5.53^d	30.34±6.16^C	0.666	>0.05
	RelyX U100	12.94±7.52^b	0.41±0.36^A	4.710	<0.001
F值		77.245	4.908
P值		<0.001	<0.01

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