Division of Periodontology, Eastman Institute for Oral Health, University of Rochester, Rochester, NY, USA.
Implant Dent. 2011 Oct;20(5):379-82. doi: 10.1097/ID.0b013e3182310d57.
The purpose of this study was to evaluate the temperature gradient (ΔT) generated by laser irradiation of an implant surface using a carbon dioxide (CO(2)) and an Erbium:yttrium aluminium garnet (Er:YAG) laser.
A dental implant was irradiated with a CO(2) and an Er:YAG lasers, with variable power settings. Temperature increase was measured in 2 locations of the implant surface: in the cervical area (ΔT(c)) and in the apical area (ΔT(a)).
The CO(2) laser showed the following results: after 60 seconds of irradiation with continuous mode, ΔT(c) was 13.9°C and ΔTa was 12.5°C. The Er:YAG laser showed the following results: after 60 seconds of irradiation with continuous mode, the temperature rise ΔT(c) was 50.6°C and ΔT(a) was 38.6°C. The CO(2) laser with continuous mode generated a temperature increase of 10°C after only 36 seconds. The Er:YAG laser with continuous mode produced a more rapid temperature increase and took only 10 seconds to reach the critical threshold.
The irradiation of implant surfaces with CO(2) and Er:YAG lasers may produce a temperature increase above the critical threshold (10°C) after 10 seconds of continuous irradiation.
本研究旨在评估使用二氧化碳（CO2）和铒：钇铝石榴石（Er：YAG）激光照射种植体表面时产生的温度梯度（ΔT）。
使用 CO2 和 Er：YAG 激光器以不同的功率设置照射牙科种植体。在种植体表面的两个位置测量温度升高：颈部区域（ΔT(c)）和根尖区域（ΔT(a)）。
CO2 激光的结果如下：连续模式照射 60 秒后，ΔT(c)为 13.9°C，ΔTa 为 12.5°C。Er：YAG 激光的结果如下：连续模式照射 60 秒后，温度升高 ΔT(c)为 50.6°C，ΔT(a)为 38.6°C。连续模式的 CO2 激光仅在 36 秒后就产生了 10°C 的温升。连续模式的 Er：YAG 激光产生了更快的温升，仅需 10 秒即可达到临界阈值。
CO2 和 Er：YAG 激光照射种植体表面可能会在连续照射 10 秒后产生超过临界阈值（10°C）的温升。
