Patent ID: 9011417
Filing Date: 2015-04-21
Classification: A61C

Abstract:
1. A method for dental tissue treatment, comprising: generating a laser beam at a wavelength in a range from 5 μup to 15 μthat is absorbed by hydroxyapatite in dental tissue, using a laser source; directing the laser beam to an area of dental tissue to be treated; directing a flow of fluid in a direction toward the area to be treated and to form a coolant film on the area to be treated, while avoiding fluid interaction and intersection with the laser beam prior to impingement thereof on the dental tissue to be treated; and using a controller to control the flow of the fluid to at least a portion of the area to be treated to prevent a change in laser energy absorption by the dental tissue resulting in a volumetric removal rate of less than fifteen percent of a peak removal rate, due to fluid interaction and interference with the laser beam.