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Histologic validation of ICDAS ‐ II and polarization sensitive optical coherence tomography to detect smooth surface early carious lesions
Author(s) -
Vaswani Sneha,
Sharma Divya S,
Mishra Shikha,
Sharma Sanjay
Publication year - 2019
Publication title -
international journal of paediatric dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.183
H-Index - 62
eISSN - 1365-263X
pISSN - 0960-7439
DOI - 10.1111/ipd.12440
Subject(s) - medicine , optical coherence tomography , lesion , radiography , nuclear medicine , dentistry , radiology , pathology
Aim This in vitro study aimed to histologically validate and compare the methods for detection of smooth surface early carious lesions ( ECL s) that is , International caries detection and assessment system for the smooth surface ( ICDAS ‐ II ‐ SSC ), Polarization sensitive optical coherence tomography ( PS ‐ OCT ), and radiography. Methodology PS ‐ OCT images for scores 0‐3 of ICDAS ‐ II ‐ SSC were standardized according to ECL s’ depth. Preliminary PS ‐ OCT images for ICDAS ‐ II ‐ SSC score‐2 of pigmented ECL s showed reduced lesion depth and therefore were dichotomized into scores 2 and 2p for white and pigmented lesions ( ICDAS ‐ II ‐ SSC m). ECL s on one hundred freshly extracted teeth were scored by three examiners for ICDAS ‐ II ‐ SSC m, PS ‐ OCT , radiography, and histology. Results Compared to histology, ICDAS ‐ II ‐ SSC m showed a strong positive correlation followed by PS ‐ OCT and radiographic evaluation. ICDAS ‐ II ‐ SSC m had a strong positive correlation with PS ‐ OCT , while both variables had a weak positive correlation with radiography. PS ‐ OCT detected the activity of ECL s by directly relating the image depth of ECL s to their mineral volume content. Conclusion The current scope of ICDAS ‐ II should be reviewed since the pigmentation can be misinterpreted as an active lesion. Till then, ICDAS ‐ II ‐ SSC is an effective visual method for early caries detection. PS ‐ OCT has the potential to become a probe with the proper algorithm for diagnostic purposes.