Occlusal caries detection by using thermal imaging
Occlusal caries detection by using thermal imaging
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DOI：
10.1016/j.jdent.2010.06.010
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发表时间：
2010-10-01
影响因子：
4.4
通讯作者：
Pretty, I. A.
中科院分区：
文献类型：
--
作者：
Zakian, C. M.;Taylor, A. M.;Pretty, I. A.
目的：探讨适用性的热变化与脱水的检测和定量的早期蛀牙上咬合surfacesusinginfraredimaging.Methods：共72个网站上的25个人的牙齿与不同程度的自然脱矿质已被使用。通过加压空气干燥使孔隙内的水连续蒸发，用于在牙齿表面上产生热力学响应。温度的时间曲线将取决于每个位置处的水量，并且这与孔隙度和病变严重程度有关。结果：获得时间-温度曲线三角形Q所包围的面积，并对所有牙齿进行组织学检查。使用该方法发现，对于健康或具有组织学El病变的区域，检测灵敏度为77%，特异性为87%，对于具有E2或EDJ病变的区域，检测灵敏度为87%，特异性为72%，对于具有到达牙本质的病变的区域，检测灵敏度为58%，特异性为83%。热成像显示了在体外区分（a）在釉质的外半部分上的完好或具有损伤的区域和（B）具有延伸到釉质中部或更深的损伤的区域的能力。然而，由于呼吸而导致的张开嘴的温度和湿度的变化可能会挑战在体内使用该技术的能力，这需要进一步的研究。(C)2010爱思唯尔有限公司保留所有权利。
Objectives: To explore the applicability of thermal changes associated with dehydration for the detection and quantification of early tooth decay on occlusal surfaces using infrared imaging.Methods: A total of 72 sites on 25 human teeth with various degrees of natural demineralisation have been used. Continuous evaporation of water inside the pores by pressurised air-drying is used to produce a thermodynamic response on the tooth surface. The temporal profile of the temperature will depend on the amount of water at each position and this is studied in relation to the degree of porosity and the lesion severity. The area enclosed by the time-temperature curve, triangle Q, was then used for quantification of the lesion.Results: Maps of triangle Q were obtained and histological examinations were performed for all teeth. A detection sensitivity of 77% and specificity of 87% for areas that are either sound or have a histological El lesion, 87% and 72% for areas that have either an E2 or EDJ lesion, and 58% and 83% for areas that have a lesion reaching the dentin was found using this method.Conclusions: Thermal imaging shows the ability to discriminate, in vitro, between (a) either areas that are sound or with a lesion on the outer half of the enamel and (b) areas with a lesion extending to the middle of the enamel or deeper. However, variations of the temperature in an open mouth and humidity due to respiration can potentially challenge the ability of using this technique in vivo and this requires further investigation. (C) 2010 Elsevier Ltd. All rights reserved.