Comparative Evaluation of Temperature Changes of Titanium Discs with SLA Surface after Irradiation with 980-nm and 810-nm Diode and Er:YAG Laser Beams
The aim of the present study was to determine the effect of three lasers, 980-nm diode, 810-nm diode and Er:YAG laser beams on temperature changes of titanium discs with SLA (sandblast large-grit acid etch) surface. Materials &
In this interventional in vitro study, 17 titanium discs with SLA surface, with a diameter of 5.2 mm and a height of 2 mm, were prepared. The specimens were divided into 3 groups (n = 5) and 1 control group (n = 2). The first group was irradiated by Er:YAG laser; the second and third groups were irradiated with 810-nm and 980-nm diode laser beams. No intervention was implemented in the fourth group. Temperature was measured before and after intervention (laser irradiation) with a digital thermometer. Data were analyzed with one-way ANOVA, followed by post hoc Tukey tests, using SPSS 22 (α < 0.05).
The results showed significant differences in ∆T between the 4 groups (p value < 0.05). The minimum temperature changes compared to the control group were recorded in the group irradiated with Er:YAG laser beams and the maximum temperature changes compared to the control group were recorded in the group irradiated with 980-nm diode laser beams.
Considering the decrease in temperature on the surface of the titanium discs with the use of Er:YAG laser beams, this laser is recommended for disinfection of implant surfaces; 810-nm diode laser proved more effective because of the lower temperature rise.
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