Distributed Force Measurement and Mapping Using Pressure-Sensitive Film and Image Processing for Active and Passive Aligners on Orthodontic Attachments

Orthodontic clear aligners, along with their attachments, are used for the corrective alignment of teeth during orthodontic treatment. Although aligner technique has gained widespread popularity due to its aesthetic quality, studies that examine and map measurement forces applied attachments lacking. This investigation describes topographical visualisation force in attachments. We describe a method using Prescale® pressure film an image processing obtain aligner’s distributed on attachment in-vitro study resin models. The variation colour density is calibrated gauge validation. demonstrated through histogram-based K-means clustering 3D force. involves calibration, followed by sample preparation analysis. proposed mapping system illustrates as directly proportional intensity. For active mean ranged from 6.2–6.3 N, passive 4.8–4.9 N. Therefore, net exerted single model this was 1.3–1.4 preliminary findings work can be developed further reference future clinical research.