Assessing lesion activity of secondary lesions on extracted teeth by thermal dehydration measurement and optical coherence tomography.
Assessing lesion activity of secondary lesions on extracted teeth by thermal dehydration measurement and optical coherence tomography.
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通过热脱水测量和光学相干断层扫描评估拔除牙齿上继发性病变的病变活动。
DOI：
10.1117/12.2608291
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Fried,Daniel
中科院分区：
文献类型：
--
作者：
Chang,Nai-YuanN;Dillas,Tina;Fried,Daniel
当修复材料和牙齿结构之间的界面渗漏允许液体和细菌酸渗透时，发生继发性龋齿。热成像结合脱水可用于测量牙齿继发性病变的液体渗透性的增加。热成像利用脱水过程中由于水蒸发引起的温度变化来测量水从多孔病变区域扩散的速率。以前在体外和体内的热成像研究，牙釉质和根表面已被看好评估自然病变的活动。在这项研究中，脱水率的继发性病变的拔除牙齿进行了测量。还通过光学相干断层扫描（OCT）评估了继发性病变，并与脱水率相关，以确定病变活动性。未来的μCT研究将用于进一步确认病变的严重程度和结构。
Secondary caries occurs when leakage in the interfaces between restorative materials and tooth structure allow fluid and bacterial acid infiltration. Thermal imaging coupled with dehydration can be used to measure this increase in fluid permeability for secondary lesions in teeth. Thermal imaging exploits the temperature change due to water evaporation during dehydration to measure the rate of water diffusion from porous lesion areas. Previous in vitro and in vivo thermal imaging studies on enamel and root surfaces have been promising for assessing natural lesion activity. In this study, the rates of dehydration for secondary lesions on extracted teeth were measured. The secondary lesions were also assessed by optical coherence tomography (OCT) and correlated with dehydration rates to determine lesion activity. Future studies with μCT will be used to further confirm lesion severity and structure.