Full-mouth photoacoustic/ultrasound imaging of the periodontal pocket with a compact intraoral transducer
Year: 2022
Type: preprint
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 entire human mouth including assessment of periodontal pockets via 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 in vivo imaging of a molar of a periodontal patient demonstrated that the transducer could image in the posterior area of gum in vivo ; the value determined by imaging was within 7% of the value measured clinically.
Authors: Lei Fu, Reza Khazaeinezhad, Ali Hariri, Baiyan Qi, Casey Chen, Jesse V. Jokerst
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4221023049