硅藻土基底瓷与饰面瓷厚度比对抗弯强度的影响

上海口腔医学 ›› 2015, Vol. 24 ›› Issue (3): 298-301.

硅藻土基底瓷与饰面瓷厚度比对抗弯强度的影响

姜杰¹,张鑫¹,高美琴¹,章非敏²,陆小丽¹

1.南通市口腔医院,江苏南通 226000;
2.南京医科大学口腔医学研究所,江苏南京 210029

收稿日期:2014-11-05 出版日期:2015-06-20 发布日期:2015-07-24
通讯作者: 陆小丽,Tel:0513-85128530,E-mail:luxiaoli9800@163.com
作者简介:姜杰（1987-）,男,学士,医师,E-mail:yasinian@163.com
基金资助:
南通市科技计划项目（HS2013010）

The effect of core veneer thickness ratio on the flexural strength of diatomite-based dental ceramic

JIANG Jie¹,ZHANG Xin¹,GAO Mei-qin¹,ZHANG Fei-min²,LU Xiao-li¹

1.Nantong Stomatological Hospital. Nantong 226000;
2.Institute of Stomatology, Nanjing Medical University. Nanjing 210029, Jiangsu Province, China

Received:2014-11-05 Online:2015-06-20 Published:2015-07-24
Supported by:
Science and Technology Projects of Nantong City（HS2013010）

摘要/Abstract

摘要： 目的:探讨不同基底瓷与饰面瓷厚度比对硅藻土基全瓷材料结合强度的影响。方法:硅藻土基底瓷尺寸为16 mm×5. 4 mm×1 mm,随机分为4组,表面堆塑不同厚度的IPS e.max饰面瓷,分别为不烧结（A组）、0.6 mm（B组）、0.8 mm（C组）和1.0 mm（D组）,测定不同分组的抗弯强度并观察陶瓷试件的断裂模式,扫描电镜观察断面显微形貌。采用SPSS 17.0软件包对数据进行单因素方差分析。结果:随着饰面瓷厚度的增加,抗弯强度也随之增强,其中C组抗弯强度最大,达到（277.24±15.47） MPa。结论:基底瓷与饰面瓷厚度比可显著影响硅藻土基底瓷与饰面瓷的抗弯强度。

关键词: 基底瓷, 饰面瓷, 厚度比, 抗弯强度

Abstract: PURPOSE: To evaluate the effect of different core veneer thickness ratios on the flexural strength and failure mode of bilayered diatomite-based dental ceramics. METHODS: Diatomite-based dental ceramics blocks (16 mm×5.4 mm×1 mm) were sintered with different thickness of veneer porcelains: 0 mm (group A), 0.6 mm (group B), 0.8 mm (group C) and 1.0 mm(group D). Flexural strength was detected and scanning electron microscope was used to observe the interface microstructure. Statistical analysis was performed using SPSS 17.0 software package. RESULTS: With the increase of the thickness of the veneer porcelain, flexural strength of group C showed highest flexural strength up to(277.24±5.47) MPa. CONCLUSIONS: Different core veneer thickness ratios can significantly influence the flexural strength of bilayered diatomite-based dental ceramics.

Key words: Basal porcelain, Veneer porcelain, Thickness ratio, Flexural strength

中图分类号:

R783.3

姜杰,张鑫,高美琴,章非敏,陆小丽. 硅藻土基底瓷与饰面瓷厚度比对抗弯强度的影响[J]. 上海口腔医学, 2015, 24(3): 298-301.

JIANG Jie,ZHANG Xin,GAO Mei-qin,ZHANG Fei-min,LU Xiao-li. The effect of core veneer thickness ratio on the flexural strength of diatomite-based dental ceramic[J]. Shanghai Journal of Stomatology, 2015, 24(3): 298-301.

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