不同空腔形态对体积填料与常规树脂复合材料边际适应性影响的比较研究

Hamed Mohamed
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引用次数: 1

摘要

目的:研究不同腔体结构(c因子)对超声填充与Ceram X常规复合树脂复合材料边缘适应性的影响。对象与方法:使用90颗新拔除的人类无龋前磨牙,根据试验材料随机分为两组,每组45颗;超声填充和陶瓷X树脂复合材料。每组根据空腔形态进一步分为3个相等的亚组,每个亚组15个;平齿面,II类腔和V类腔。每个亚组按储存时间细分为3个(每个5个);一个月,三个月,六个月。储存时间和染料浸泡在硝酸银50% wt 12小时后。在体视显微镜下观察牙修复界面边缘渗漏情况。最后,在扫描电子显微镜(SEM)下对每组随机选取具有代表性的标本进行定性检查。研究结果表明,超声填充材料的微泄漏小于陶瓷X. c因素并不能完全消除两种体积填充树脂材料的微泄漏。平齿面与ⅰ类、ⅴ类之间存在显著性差异。Sonicfill和Ceram X在储存6个月时泄漏评分较高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Comparative Study of Different Cavity Configuration Effect on Marginal Adaptation of Bulk Fill Versus Conventional Resin Composites
Aim : The aim of the study is to evaluate the effect of different cavity configuration (C-factor) on marginal adaptation of Sonic fill versus Ceram X conventional composite resin composites. Subjects and methods :A total of 90 freshly extracted human non carious premolar teeth was used and divided randomly according to tested materials into two main equal groups (45 each); Sonicfill and Ceram X resin composites. Each group was further divided according to the cavity configuration into three equal subgroups of (15 each); flat tooth surface, class II cavity and class V cavity. Each subgroup was divided subdivisions according to storage time into three (5 each); one month, three months and six months. After storage time and dye immersion in silver nitrate 50% wt for 12 hours. Each tooth was splatted longitudinally into 2 halves and inspected under stereomicroscope to evaluate the marginal leakage of tooth restoration interface. Finally, a randomly representative specimen from each group was investigated under Scanning Electron Microscope (SEM) to evaluate the qualitative examination. The results of this study revealed that less microleakage of Sonic-fill than Ceram X. C-factors do not completely eliminate the microleakage with both bulk fill resin materials. There was significant difference between flat tooth surface and both of classII and classV. Sonicfill and Ceram X showed high leakage score at six months storage time.
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