Abstract
Thermal-induced destruction of pulpal material on account of prolonged exposure to laser irradiation frequently offers serious challenges for application of lasers in dentistry. Here, we develop a mathematical model of heat transfer within the dental profile due to laser irradiation and attempt to locate the probable paths of heat flow by identifying the pertinent thermal resistances. Corresponding to a maximum allowable rise of temperature, we obtain suitable ranges of laser power, so that a negligible heat flux prevails at tooth locations farthest from the spot of laser treatment, thereby obtaining safe operating parameter regimes and avoiding any undesirable pulpal damage.
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