Nd:YAG와 Er:YAG 레이저를 이용한 구강내 절개의 유용성
Usefulness of the Intraoral Incision Using Nd:YAG and Er:YAG Laser
조영승, 김수관, 유재식, 문성용, 오지수,
소속 상세정보
조영승 ( Cho Young-Seung ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
김수관 ( Kim Su-Gwan ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
유재식 ( You Jae-Seek ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
문성용 ( Moon Seong-Yong ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
오지수 ( Oh Ji-Su ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
KMID : 0602720110150020124
Abstract
Purpose: The purpose of this study was to irradiate the lingual sides of adult dogs with an Er:YAG or Nd:YAG laser and to compare their healing processes by histological evaluation.
Materials and Methods: Both lingual sides of adults dogs were resected with Er:YAG laseror Nd:YAG laser by varying the output to be 1.5 W or 3 W. The animals were sacrificed after 1 week or 2 weeks, and tissues were obtained and examined histologically both macroscopically and under a light microscope.
Results: The following results were obtained: 1. No significant macroscopic differences between the groups irradiated with Er:YAG and Nd:YAG lasers were detected after 1 week or 2 weeks, and similar wound healing features were observed. 2. In the Er:YAG laser group, in comparison with the findings after 1 week, the histological defect size after 2 weeks was observed to be noticeably smaller. 3. The Er:YAG laser group showed narrower distributions of defect size, fibroblast proliferative activity, inflammation, and neovascularization than the Nd:YAG lasergroup, although the differences were not statistically significant. Based on the above results, resections performed with an Er:YAG laser showed good healing features comparable to those observed for resections performed with a Nd:YAG laser, which has been used primarily for incisions in soft tissues.
Conclusion: Thus, an Er:YAG laser may also be useful for the incision of soft tissues.
키워드
histology; laser; surgery
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