Effects of Nd:YAG and CO2 Laser Treatment and Ultrasonic Scaling on Periodontal Pockets of Chronic Periodontitis Patients

• Autores: Akira Miyazaki, Toshikazu Yamaguchi, Jun Nishikata, Kazuhiro Okuda, Satoru Suda, Kazuko Orima, Tetsuo Kobayashi, Kazuhisa Yamazaki, Eiji Yoshikawa, Dr. Hiromasa Yoshie
• Localización: Journal of periodontology, ISSN 0022-3492, Vol. 74, Nº. 2, 2003, págs. 175-180
• Idioma: inglés
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• Resumen

  • Background: The aim of the present study was to compare the effectiveness of Nd:YAG and CO2 laser treatment to that of ultrasonic scaling used as monotherapies by examining clinical parameters, subgingival microflora, and interleukin-1 beta (IL-1β) in gingival crevicular fluid (GCF).

    Methods: Eighteen patients, each of whom had 2 or more sites with probing depth measuring >5 mm, were included this clinical trial. The 41 sites were randomly assigned treatment with either Nd:YAG laser alone (n = 14, 100 mj, 20 pps, 2.0 W, 120 seconds), CO2 laser alone (n = 13, 2.0 W, 120 seconds), or ultrasonic scaling alone (n = 14, maximum power, 120 seconds). At baseline and at 1, 4, and 12 weeks, clinical measurements (plaque index, PI; gingival index, GI; probing depth, PD; clinical attachment level, CAL; and bleeding on probing, BOP) were performed and subgingival plaque and GCF sampled. A quantitative analysis of Porphyromonas gingivalis was carried out using real-time polymerase chain reaction (PCR) procedures. The amounts of IL-1β were estimated by an enzyme-linked immunosorbent assay (ELISA).

    Results: Decreased inflammation and PD were observed in all 3 groups after treatment. A microbiological analysis indicated significant decreases in P. gingivalis in the Nd:YAG and scaling groups at 1, 4, and 12 weeks compared to baseline (P <0.05). The amount of GCF significantly decreased in the Nd:YAG and scaling groups at 12 weeks. The amount of IL-1β increased in the CO2 group from baseline to 1 week (P <0.05). The Nd:YAG group tended to show a decrease in IL-1β from 1 to 12 weeks, although these data were not statistically significant.

    Conclusions: Our data suggest that Nd:YAG laser and ultrasonic scaling treatments showed significant improvements regarding the clinical parameters and subgingival microflora compared to the baseline, but no significant difference was observed between the 3 groups. J Periodontol 2003;74:175-180.