Effect of storage time on chemical structure of a single-bottle and a two-bottle experimental ceramic primer and micro-shear bond strength of composite to ceramic.

IF 2.7 3区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Journal of Advanced Prosthodontics Pub Date : 2024-06-01 Epub Date: 2024-06-25 DOI:10.4047/jap.2024.16.3.163

Armaghan Naghili, Amirparsa Ghasemi, Amir Ghasemi, Narges Panahandeh

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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 single-bottle ceramic primer, and consequently had an adverse effect on µSBS.

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储存时间对单瓶和双瓶实验性陶瓷底漆化学结构以及复合材料与陶瓷微剪切粘接强度的影响。

目的：本研究评估了储存时间对单瓶和双瓶实验性陶瓷底漆的化学结构以及复合材料与陶瓷的微剪切粘接强度（µSBS）的影响：这项研究是在 60 个烧结氧化锆和 60 个长石瓷块上进行的。一半试样（n = 30）在 24 小时后用单瓶 Clearfil 陶瓷底漆（n = 15）和双瓶实验底漆（n = 15）进行表面处理。其余一半在蒸馏水中存放 6 个月后接受相同的表面处理。将复合材料圆柱体粘合到陶瓷上，然后对它们进行 µSBS 测试。此外，在 24 小时和 6 个月后，还对引物进行了傅立叶变换红外光谱（FTIR）分析，以评估其化学结构。数据分析采用 3 方方差分析和调整的 Bonferroni 检验（α = 0.05）：结果：6 个月后，单瓶陶瓷底漆组两种陶瓷的 µSBS 都明显下降（P = .001），但与双瓶实验底漆组相比无明显差异（P = .635）。傅立叶变换红外光谱显示，6 个月后，单瓶底漆发生水解，硅烷和 10-MDP 键断裂，硅氧烷键形成：结论：6 个月的储存会导致单瓶陶瓷底漆发生明显降解，从而对 µSBS 产生不利影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Advanced Prosthodontics DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

4.70

自引率

3.80%

发文量

期刊介绍： This journal aims to convey scientific and clinical progress in the field of prosthodontics and its related areas to many dental communities concerned with esthetic and functional restorations, occlusion, implants, prostheses, and biomaterials related to prosthodontics. This journal publishes • Original research data of high scientific merit in the field of diagnosis, function, esthetics and stomatognathic physiology related to prosthodontic rehabilitation, physiology and mechanics of occlusion, mechanical and biologic aspects of prosthodontic materials including dental implants. • Review articles by experts on controversies and new developments in prosthodontics. • Case reports if they provide or document new fundamental knowledge.