THERMAL-CHANGES IN ENDOSSEOUS ROOT-FORM IMPLANTS AS A RESULT OF CO2-LASER APPLICATION - AN IN-VITRO AND IN-VIVO STUDY

Carbon dioxide (CO2) laser surgery is advantageous in current clinical situations. The controlled and precise destruction of target tissue h as made it a recommended procedure in intraoral surgery. Implant surge ry demands minimal thermal changes in bane surrounding the implant. In this experimental study, different types of implants were placed in v itro in the mandible of a pig and in vivo in the mandibles of two dogs . In continuous mode, 4 and 6 watts, and in repeated pulse, 5 and 8 wa tts, for 2, 4, and 5 seconds, the CO2 laser contacted several places a round and on the implants. Temperature changes were measured at the im plant-bone junction. The results showed that the CO, laser produced mi nimal temperature changes in the continuous mode power setting at less than 4 watts and in the repeated pulse, 0.05 second-interval power se tting at less than 8 watts.