Imaging and quantitative analysis of early caries using optical coherence tomography
10.7518/hxkq.2015.02.003
- VernacularTitle:釉质早期龋的光学相干断层成像与定量研究
- Author:
Yanni LI
1
;
Hui YAO
;
Xiaoli LIAN
;
Guanhua WANG
;
Xiaohua DAI
;
Linpu ZHANG
Author Information
1. 南开大学口腔医院·天津市口腔医院中心实验室
- Keywords:
optical coherence tomography;
early caries;
mineral change;
optical imaging;
quantitative evaluation
- From:
West China Journal of Stomatology
2015;(2):121-124
- CountryChina
- Language:Chinese
-
Abstract:
Objective??To?explore?the?efficacy?of?optical?coherence?tomography?(OCT)?in?imaging?and?quantitatively?eva-luating?early?enamel?caries?and?provide?experimental?evidence?for?the?clinical?diagnosis?of?early?caries. Methods??The?smooth?surface?of?bovine?teeth?showing?early?artificial?caries?and?demineralization?changes?was?scanned?by?an?all?fiber-based?OCT?for?images?and?optical?profiles,?which?were?compared?with?images?from?a?polarized?light?microscope?(PLM)?and?mineral?loss?from?an?atomic?absorption?spectrometer.?Data?were?analyzed?by?paired-sample?t-test?and?Pearson?correlation?analysis?using?SPSS?software.?Results??The?images?of?enamel?with?early?caries?and?demineralization?from?OCT?coincided?with?those?from?PLM.?The?integrated?reflectivity?loss?in?the?early?caries?group?was?significantly?lower?than?that?in?the?demineralized?group?(P<0.05),?whereas?no?significant?difference?in?demineralized?depth?was?found?between?the?two?groups?(P>0.05).?A?linear?correlation?was?observed?between?integrated?reflectivity?loss?and?mineral?loss?(P<0.05).?Conclusion??OCT?can?be?used?to?nondestructively?and?accurately?image?early?caries?and?quantify?lesion?extent?and?degree,?suggesting?the?extensive?use?of?this?approach?in?the?clinical?diagnosis?of?early?caries.
