Related Experiment Video
Updated: Aug 19, 2026
In Vitro Evaluation of The Effects Of Er,Cr:YSGG and Diode Lasers Used on Titanium Cylinder
Published on: June 6, 2025
Temperature variation at soft periodontal and rat bone tissues during a medium-power diode laser exposure
Carla Raquel Fontana1, Cristina Kurachi, Cleber Renato Mendonça
1Instituto de Física de São Carlos-USP, São Carlos, SP, Brazil. cfontana@if.sc.usp.br
Objective:
The aim of this study was to evaluate temperature variation induced by a diode laser in periodontal repair.
Background Data:
A diode laser operating with medium power can constitute an alternative device for bacterial reduction at periodontal pockets. This procedure will probably avoid any kind of undesirable thermal damage to the irradiated tissues.
Methods:
The temperature variation induced by a 810-nm diode laser was investigated in an in vitro study, varying the soft tissue thickness, and in an in vivo study for soft periodontal and bone tissues. The laser powers used were 600 mW, 800 mW, 1.0 W, and 1.2 W, and the light was delivered by a 300-microm fiber.
Results:
The laser parameters and irradiation time used did not induce a temperature variation high enough to cause thermal irreversible damage to the periodontal tissues investigated.
Conclusions:
This study contributes to the establishment of thermally safe working parameters of a diode medium power laser.
