纳米羟基磷灰石、氧化锆和玻璃填料颗粒对实验性牙科复合树脂磨损及显微硬度的影响

Effect of Nanohydroxyapatite, Zirconia and Glass Filler Particles on the Wear and Microhardness of Experimental Dental Composite Resin.

作者信息

Mirajkar Chaitali K, Winnier Jasmin, Hambire Umesh

机构信息

Department of Pediatric and Preventive Dentistry, DY Patil School of Dentistry, Navi Mumbai, Maharashtra, India.

Department of Mechanical Engineering, GECA, Aurangabad, Maharashtra, India.

出版信息

Int J Clin Pediatr Dent. 2023 Aug;16(Suppl 1):S81-S84. doi: 10.5005/jp-journals-10005-2591.

DOI:10.5005/jp-journals-10005-2591

PMID:37663204

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10474397/

Abstract

OBJECTIVES

To study the influence of nanoparticles of hydroxyapatite, zirconia, and glass on the wear and the microhardness of the organic matrix of experimental dental composite resin.

MATERIALS AND METHODS

The dental composite resin matrix was fabricated from bisphenol A-glycidyl methacrylate (Bis-GMA) (40 wt%), triethylene glycol dimethacrylate (TEGDMA) (36 wt%), and camphorquinone (0.4 wt%). Nanohydroxyapatite, glass, and zirconia fillers were silane treated. Nano-hydroxyapatite, glass, and zirconia were incorporated at three different concentrations. The polymerization of the dental composite resin was done using a light curing unit. Experimental dental composite resins were evaluated for wear and microhardness. The data were analyzed by one-way analysis of variance (ANOVA) test.

RESULTS

The experimental dental composite resin composed of 32% of nanohydroxyapatite, 27% of zirconia, and 19% of glass as filler showed the minimum amount of wear. The Vickers hardness (VHN) number was observed to be minimum for the experimental dental composite resin composed of 24.1% of nanohydroxyapatite, 22% of zirconia, and 14.5% of glass.

CONCLUSION

The inclusion of 32% nanohydroxyapatite, 27% of zirconia, and 19% of glass as filler into the experimental dental composite resin decreased the wear and increased the hardness.

HOW TO CITE THIS ARTICLE

Mirajkar CK, Winnier J, Hambire U. Effect of Nanohydroxyapatite, Zirconia and Glass Filler Particles on the Wear and Microhardness of Experimental Dental Composite Resin. Int J Clin Pediatr Dent 2023;16(S-1):S81-S84.

摘要

目的

研究羟基磷灰石、氧化锆和玻璃纳米颗粒对实验性牙科复合树脂有机基质磨损及显微硬度的影响。

材料与方法

牙科复合树脂基质由双酚A - 甲基丙烯酸缩水甘油酯（Bis - GMA）（40 wt%）、三乙二醇二甲基丙烯酸酯（TEGDMA）（36 wt%）和樟脑醌（0.4 wt%）制成。纳米羟基磷灰石、玻璃和氧化锆填料经硅烷处理。纳米羟基磷灰石、玻璃和氧化锆以三种不同浓度加入。牙科复合树脂的聚合使用光固化装置完成。对实验性牙科复合树脂的磨损和显微硬度进行评估。数据通过单因素方差分析（ANOVA）检验进行分析。