Depolarization-Based Multimodal Optical Imaging of Carious Lesions

Area of Science:

• Dentistry
• Biomedical Imaging
• Optical Coherence Tomography

Background:

• Dental caries diagnosis often relies on ionizing radiation or subjective interpretation.
• Developing non-ionizing, objective diagnostic tools for dental caries is crucial.
• Optical imaging techniques offer potential for early and accurate caries detection.

Purpose of the Study:

• To create a comprehensive image catalog of occlusal carious lesions in vitro.
• To validate polarization-sensitive optical coherence tomography (PS-OCT) for dental caries diagnosis.
• To provide reference data for PS-OCT development and interpretation.

Main Methods:

• In vitro investigation of extracted teeth with occlusal carious lesions.
• Utilized various imaging techniques, including histopathological analysis.
• Performed measurements to support PS-OCT interpretation based on the degree of polarization (DOP).

Main Results:

• Generated a detailed image catalog illustrating different stages of caries progression.
• Demonstrated the potential of PS-OCT to visualize and differentiate carious lesions.
• Established correlations between PS-OCT parameters (DOP) and caries severity.

Conclusions:

• PS-OCT shows promise as a non-ionizing diagnostic method for dental caries.
• The developed image catalog serves as valuable reference data for PS-OCT validation.
• This research bridges basic analysis with advanced optical imaging for in vivo applications.