The Effect of Argon Laser on Periodontal Disease

치주질환에 대한 Argon 레이저의 효과

  • Ahn, Hyung-Joon (Dept. of Oral Medicine, College of Dentistry, Yonsei University) ;
  • Ryu, Ji-Won (Dept. of Oral Medicine, College of Dentistry, Yonsei University) ;
  • Kim, Jae-Hong (Dept. of Oral Medicine, College of Dentistry, Yonsei University) ;
  • Kim, Chong-Youl (Dept. of Oral Medicine, College of Dentistry, Yonsei University)
  • 안형준 (연세대학교 치과대학 구강내과학 교실) ;
  • 유지원 (연세대학교 치과대학 구강내과학 교실) ;
  • 김재홍 (연세대학교 치과대학 구강내과학 교실) ;
  • 김종열 (연세대학교 치과대학 구강내과학 교실)
  • Published : 2005.06.30


The purpose of this study was to evaluate photothermal effect of laser, which eliminates and reduces bacteria causing periodontal disease, on treatment of periodontal disease. This study included subjects with moderate periodontitis who visited the Department of Oral Medicine, College of dentistry, Yonsei University. The subjects were divided into experimental group, where Argon laser treatment was used, and control group, where conventional subgingival curettage was used. Gingival fluids from each subject were collected prior and after 1 week of the treatment, and changes in number of bacterial colonies cultured from aerobic as well as anaerobic bacteria responsible for the periodontal disease, and changes in clinical indices related to the periodontal disease, such as plaque index, gingival index, sulcus bleeding index, were analysed. As a result, the number of bacterial colonies of aerobic and anaerobic bacteria reduced after 1 week of the treatment in both groups, especially the bacterial colonies of anaerobic bacteria which showed statistically significant reduction(p<0.1). However, there was no significant difference between the experimental group and the control group. Clinical indices including plaque index, gingival index, sulcus bleeding index were reduced after 1 week of the treatment in both groups. In the experimental group, gingival index(p<0.1) and sulcus bleeding index(p<0.01) showed significant reduction, and, in the control group, sulcus bleeding index(p<0.01) showed significant reduction. However, there were no significant differences in each indices between the two groups. The above results suggest that Argon laser could be used as a substitute of conventional subgingival curettage, or in combination with subgingival curettage which would increase the effect of the treatment. Although the possibility of clinical application of Argon laser was observed in this study, more randomized-controlled research, including acquirement of sufficient samples as well as long-termed follow up, would be necessary before clinically effective application of Argon laser.


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