TY - JOUR AU1 - Jang, Andrew T. AU2 - Chan, Kenneth H. AU3 - Fried, Daniel AB - Dental composites are used as restorative materials for filling cavities, shaping, and covering teeth foresthetic purposes, and as adhesives. Dentists spend more time replacing existing restorations that fail thanthey do placing new restorations. Tooth colored restorations are difficult to differentiate from thesurrounding tooth structure making them challenging to remove without damaging healthy tooth structure.Previous studies have demonstrated that CO2 lasers in conjunction with spectral feedback can be used toselectively remove composite from tooth surfaces. The purpose of this study is to assemble a system that isfeasible for clinical use incorporating a spectral feedback system, a scanning system, articulating arm and aclinical handpiece and then evaluate the performance of that system on extracted teeth. In addition, theselectivity of composite removal was analyzed using a high-speed optical coherence tomography system thatis suitable for clinical use. The system was capable of rapidly removing composite from small preparationson tooth occlusal surfaces with a mean loss of enamel of less than 20-m. TI - Automated ablation of dental composite using an IR pulsed laser coupled to a plume emission spectral feedback system JF - Proceedings of SPIE DO - 10.1117/12.2256698 DA - 2017-02-08 UR - https://www.deepdyve.com/lp/spie/automated-ablation-of-dental-composite-using-an-ir-pulsed-laser-nnvqLPhNvw SP - 100440E EP - 100440E-5 VL - 10044 IS - DP - DeepDyve ER -