Improved accuracy in periodontal pocket depth measurement using optical coherence tomography

Area of Science:

• Biomedical Optics
• Periodontology
• Diagnostic Imaging

Background:

• Periodontal disease diagnosis relies on accurate measurement of periodontal pocket depth.
• Traditional probing methods have limitations in precision and visualization.
• Optical coherence tomography (OCT) offers high-resolution cross-sectional imaging capabilities.

Purpose of the Study:

• To evaluate the efficacy of OCT in visualizing periodontal pockets.
• To develop and suggest quantitative methods for measuring periodontal pocket depth using OCT.
• To assess the accuracy of OCT measurements against established methods.

Main Methods:

• OCT imaging of periodontal pockets was performed in a porcine model.
• Axial resolution was calibrated for precise periodontal pocket depth measurement.
• Quantitative OCT measurements were compared with manual periodontal probing results.

Main Results:

• OCT successfully visualized periodontal pockets and indicated attachment loss.
• Average periodontal pocket depths measured by OCT were consistent with manual probing across various pocket depths (3.10-6.05 mm).
• Quantitative measurements demonstrated high similarity to manual probing outcomes.

Conclusions:

• OCT is a capable technology for visualizing periodontal pockets and attachment loss.
• Establishing accurate axial resolution through calibration allows for reliable quantitative measurement of periodontal pocket depth.
• OCT provides a standardized and accurate method for assessing periodontal pocket depth, irrespective of its location in the image.