3D assessment of hidden caries using non-invasive tomography

2014 Fiscal Year Final Research Report

• Project/Area Number: 24592861
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Conservative dentistry
• Research Institution: Tokyo Medical and Dental University
• Principal Investigator: SHIMADA Yasushi 東京医科歯科大学, 医歯(薬)学総合研究科, 助教 (60282761)
• Co-Investigator(Kenkyū-buntansha): SADR Alireza 東京医科歯科大学, 国際交流センター, 特任講師 (20567755) ; TAGAMI Junji 東京医科歯科大学, 大学院医歯学総合研究科, 教授 (50171567)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: hidden caries / SS-OCT / tomography

Outline of Final Research Achievements

This study aimed to investigate swept source optical coherence tomography (SS-OCT) as a detecting tool for hidden caries. First, SS-OCT scanning was performed to the occlusal fissure after the artificial demineralization induced by cariogenic biofilm. Second, occlusal fissure before and after the penetration of sealant was observed using SS-OCT. Third, SS-OCT was evaluated as a diagnostic tool for the detection of occlusal caries and hidden caries. Forth, SS-OCT scanning was performed over the composite resin restoration bonded on the dentin caries in order to determine the diagnostic capacity for secondary caries.
Within the limitation of this study, the demineralization induced by caries process could be clearly discriminated as a highlighted area due to scattering of light in SS-OCT. SS-OCT could image the cross-sectional view of occlusal caries lesions both in vitro and in vivo situations. SS-OCT appears to be a potential detecting method for assessment of hidden caries.

Free Research Field

保存修復学