Effect of storage time on chemical structure of a single-bottle and a two-bottle experimental ceramic primer and microshear bond strength of composite to ceramic
10.4047/jap.2024.16.3.163
- Author:
Armaghan NAGHILI
1
;
Amirparsa GHASEMI
;
Amir GHASEMI
;
Narges PANAHANDEH
Author Information
1. Department of Operative Dentistry, Faculty of Dentistry, Tabriz Medical Sciences, Islamic Azad University, Tabriz, Iran
- Publication Type:Original Article
- From:The Journal of Advanced Prosthodontics
2024;16(3):163-173
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE:This study assessed the effect of storage time on chemical structure of a single-bottle and a two-bottle experimental ceramic primer and micro-shear bond strength (µSBS) of composite to ceramic.
MATERIALS AND METHODS:This study was conducted on 60 sintered zirconia and 60 feldspathic porcelain blocks. Half of the specimens (n = 30) were subjected to surface treatment with the single-bottle Clearfil ceramic primer (n = 15) and two-bottle experimental primer (n = 15) after 24 hours. The remaining half received the same surface treatments after 6 months storage in distilled water. Composite cylinders were bonded to the ceramics, and they were then subjected to µSBS test. Also, the primers underwent Fourier-transform infrared spectroscopy (FTIR) after 24 hours and 6 months to assess their chemical structure. Data were analyzed with 3-way ANOVA and adjusted Bonferroni test (alpha = 0.05).
RESULTS:The µSBS of both ceramics significantly decreased at 6 months in one-bottle ceramic primer group (P = .001), but it was not significantly different from the two-bottle experimental primer group (P = .635). FTIR showed hydrolysis of single-bottle primer, cleavage of silane and 10-MDP bonds, and formation of siloxane bonds after 6 months.
CONCLUSION:Six months of storage caused significant degradation of singlebottle ceramic primer, and consequently had an adverse effect on µSBS.
