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评估老化复合核与黏结剂之间的黏结强度。

Evaluation of the bond strength between aged composite cores and luting agent.

机构信息

Department of Prosthodontics, Faculty of Dentistry, Gazi University, Ankara, Turkey.

Department of Restorative, Faculty of Dentistry, Abant İzzet Baysal University, Bolu, Turkey.

出版信息

J Adv Prosthodont. 2015 Apr;7(2):108-14. doi: 10.4047/jap.2015.7.2.108. Epub 2015 Apr 23.

DOI:10.4047/jap.2015.7.2.108
PMID:25932308
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4414940/
Abstract

PURPOSE

The aim of this study was to evaluate effect of different surface treatment methods on the bond strength between aged composite-resin core and luting agent.

MATERIALS AND METHODS

Seventy-five resin composites and also seventy-five zirconia ceramic discs were prepared. 60 composite samples were exposed to thermal aging (10,000 cycles, 5 to 55℃) and different surface treatment. All specimens were separated into 5 groups (n=15): 1) Intact specimens 2) Thermal aging-air polishing 3) Thermal aging- Er:YAG laser irradiation 4) Thermal aging- acid etching 5) Thermal-aging. All specimens were bonded to the zirconia discs with resin cement and fixed to universal testing machine and bond strength testing loaded to failure with a crosshead speed of 0.5 mm/min. The fractured surface was classified as adhesive failure, cohesive failure and adhesive-cohesive failure. The bond strength data was statistically compared by the Kruskal-Wallis method complemented by the Bonferroni correction Mann-Whitney U test. The probability level for statistical significance was set at α=.05.

RESULTS

Thermal aging and different surface treatment methods have significant effect on the bond strength between composite-resin cores and luting-agent (P<.05). The mean baseline bond strength values ranged between 7.07 ± 2.11 and 26.05 ± 6.53 N. The highest bond strength of 26.05 ± 6.53 N was obtained with Group 3. Group 5 showed the lowest value of bond strength.

CONCLUSION

Appropriate surface treatment method should be applied to aged composite resin cores or aged-composites restorations should be replaced for the optimal bond strength and the clinical success.

摘要

目的

本研究旨在评估不同表面处理方法对老化复合树脂核与黏结剂之间粘结强度的影响。

材料与方法

制备了 75 个树脂复合材料和 75 个氧化锆陶瓷圆盘。将 60 个复合样本暴露于热老化(10000 个循环,5 至 55℃)和不同的表面处理中。所有样本被分为 5 组(n=15):1)完整样本;2)热老化-空气抛光;3)热老化-Er:YAG 激光照射;4)热老化-酸蚀;5)热老化。所有样本均用树脂黏结剂黏结到氧化锆圆盘上,并固定在万能试验机上,以 0.5mm/min 的十字头速度加载至失效,进行粘结强度测试。将断裂面分类为黏结破坏、内聚破坏和黏结-内聚破坏。使用 Kruskal-Wallis 方法结合 Bonferroni 校正的 Mann-Whitney U 检验对粘结强度数据进行统计学比较。统计显著性水平设定为α=.05。

结果

热老化和不同的表面处理方法对复合树脂核与黏结剂之间的粘结强度有显著影响(P<.05)。基线粘结强度值的平均值范围在 7.07±2.11 和 26.05±6.53N 之间。第 3 组获得的最高粘结强度为 26.05±6.53N。第 5 组的粘结强度最低。

结论

对于老化的复合树脂核,应采用适当的表面处理方法;对于老化的复合树脂修复体,应更换,以获得最佳的粘结强度和临床成功率。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b42/4414940/c51e09a11dfb/jap-7-108-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b42/4414940/6927f57cb33f/jap-7-108-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b42/4414940/1bfb73687e80/jap-7-108-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b42/4414940/9ed698abe5b7/jap-7-108-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b42/4414940/4970b754f451/jap-7-108-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b42/4414940/ff547f6f4cdd/jap-7-108-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b42/4414940/c51e09a11dfb/jap-7-108-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b42/4414940/6927f57cb33f/jap-7-108-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b42/4414940/be53e2898bf4/jap-7-108-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b42/4414940/1bfb73687e80/jap-7-108-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b42/4414940/9ed698abe5b7/jap-7-108-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b42/4414940/4970b754f451/jap-7-108-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b42/4414940/ff547f6f4cdd/jap-7-108-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0b42/4414940/c51e09a11dfb/jap-7-108-g007.jpg

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