Influence of explorer tip diameter in identifying restoration margin discrepancies
Influence of explorer tip diameter in identifying restoration margin discrepancies
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DOI：
10.1016/j.jdent.2005.01.006
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发表时间：
2005-09-01
影响因子：
4.4
通讯作者：
Watts, DC
中科院分区：
文献类型：
--
作者：
Hayashi, M;Wilson, NHF;Watts, DC
目标。探索者对修复体边缘适合性的评价临床试验依赖于评估者的主观评估。本研究的目的是评估使用不同尖端直径的牙科探测器来检测模拟边缘差异的情况。根据修改后的美国公共卫生服务标准，使用三种模拟垂直台阶、水平间隙以及垂直和水平差异的组合的装置以及具有五种不同尖端直径的探测仪，要求10名经验丰富的牙科教职员工识别ALFA(不必要的更换)和Bravo(可疑更换)评级之间的差异。在水平间隙中，探测者的顶端直径与Alfa/Bravo边界之间存在显著的相关性，而对于垂直台阶而言，两者之间的相关性不显著。结果表明，牙尖直径对垂直台阶的检测没有显著影响，但对水平间隙的检测有显著影响。临床试验中对修复边缘差异的诊断和边缘适应的评级随后可能被发现使用修复边缘探测以外的技术获得最佳效果。(C)2005爱思唯尔有限公司。保留所有权利。
Objectives. Evaluations of the marginal adaptation of restorations in Explorer; clinical trials rely on subjective assessments by evaluators. The purpose of the present study was to assess the use of dental explorers with different tip diameters to detect simulated marginal discrepancies.Methods. Using three devices simulating vertical steps, horizontal gaps, and the combination of vertical and horizontal discrepancies and explorers with five different tip diameters, 10 experienced dental faculty members were asked to identify discrepancies at the boundary between Alfa (replacement unnecessarily) and Bravo (replacement questionable) ratings, according to modified United States Public Health Service criteria.Results. A significant correlation was found between the tip diameters of the explorers and the Alfa/Bravo boundaries for the horizontal gaps, but not for the vertical steps.Conclusion. It was concluded that the tip diameter of dental explorers had no significant effect on the detection of vertical steps, but had a significant effect on the detection of horizontal gaps. The diagnosis of restoration marginal discrepancies and the rating of marginal adaptation in clinical trials may subsequently be found to be best achieved using techniques other than the probing of restoration margins. (c) 2005 Elsevier Ltd. All rights reserved.