应用断层成像方法分析阻龋釉质表面透明表层

Nai-Yuan N. Chang DDS, PhD , Morgan Ng BS , Tina Dillas BS , Yi-Ching Ho DDS, PhD , Yihua Zhu MS , Daniel Fried PhD
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引用次数: 0

摘要

背景光学相干断层扫描(OCT)可以获取体内病变结构的高分辨率图像,以评估病变的活动性。阻止性釉质龋齿病变(ECLs)的表层比病变体具有更高的矿物质含量,其孔隙率降低,从而抑制液体渗透到病变中,并出现反射率降低的OCT。本研究旨在使用微型计算机断层扫描(microCT)来测量OCT图像上出现的透明表层(TSL)的矿物质含量。方法采用OCT和microCT分别对20个模拟停驻ECL的牛釉质样品、44个近端ECL的拔除牙、10个咬合ECL和17个氟中毒性病变进行反射率和相对矿物密度测量。TSL厚度(OCT)、表面层厚度(microCT)以及TSL的最小和最大密度由匹配的OCT和microCT剖面确定。结果所有样品,用OCT测量的TSL厚度明显小于用microCT测量的表层厚度(P<;.05)。TSL中的平均最大矿物密度在统计学上与正常人牙釉质相似(P>;.05),并且明显高于TSL的平均最小矿物密度(P<)。结论用OCT测得的TSL的最大矿物密度接近声音釉质的那些,表明TSL中已经发生了几乎完全的再矿化。这项研究进一步证实了OCT图像中TSL的存在是病变停止的关键指标。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Analysis of the transparent surface layer formed at the surfaces of arrested enamel caries lesions with tomographic imaging methods

Analysis of the transparent surface layer formed at the surfaces of arrested enamel caries lesions with tomographic imaging methods
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来源期刊
JADA foundational science
JADA foundational science Dentistry, Oral Surgery and Medicine
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