Ca. Wooten et al., Heat generation by superpulsed CO2 lasers on plasma-sprayed titanium implants: An in vitro study, ORAL SURG O, 88(5), 1999, pp. 544-548
Citations number
12
Categorie Soggetti
Dentistry/Oral Surgery & Medicine
Journal title
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTICS
Objective. The purpose of this study was to record the generation of heat i
n selected titanium implants while exposing them to a superpulsed CO2 laser
mode. These results can be compared with previous studies in which continu
ous and pulsed CO2 laser modes were used.
Study design. Titanium implants with cover screws were used in this study.
The length of exposure time ranged from 2 to 15 seconds, and the wattage ra
nged from 3 to 15 W. A thermocoupler with a module recorder was used to rec
ord temperature changes at the implant-cover screw interface with the impla
nt in a 37 degrees C water bath. Temperature changes were documented during
the exposure phase, as well as after termination of the exposure. Statisti
cal analysis consisted of analysis of variance (P <.05) for statistically s
ignificant differences among the exposure time-wattage pairs.
Results. Temperature increases were directly related to wattage and exposur
e time. All temperatures returned to baseline within 1 minute.
Conclusion. Superpulsed CO2 lasers generate significantly less heat with th
e 15-second, 15-W trial as compared with continuous and pulsed laser modes.
Peak temperature increases with similar exposure and wattage times are com
parable to those of the pulsed-laser mode.