Posterior Photoacoustic/ultrasound Imaging of the Periodontal Pocket with a Compact Intraoral Transducer

Overview

Journal Photoacoustics

Date 2022 Oct 7

PMID 36204181

Authors

Lei Fu

Reza Khazaeinezhad

Ali Hariri

Baiyan Qi

Casey Chen

Jesse V Jokerst

Affiliations

Soon will be listed here.

Abstract

Periodontitis is a public issue and imaging periodontal pocket is important to evaluate periodontitis. Regular linear transducers have limitations in imaging the posterior teeth due to their geometry restrictions. Here we characterized a transducer that can image the posterior teeth including assessment of periodontal pockets a combination of photoacoustic and ultrasound imaging. Unlike conventional transducer design, this device has a toothbrush-shaped form factor with a side-view transducer to image molars (total size: 1 ×1.9 cm). A laser diode was integrated as the light source to reduce the cost and size and facilitates clinical transition. The imaging of a molar of a periodontal patient demonstrated that the transducer could image in the posterior area of gum ; the value determined by imaging was within 7 % of the value measured clinically.

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