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This study compared pain relief effects after periodontal and endodontic surgeries between Nd: YAG laser irradiation and administration of anti-inflammatory drugs using the Visual Analogue Scale (VAS).<BR>Forty-three teeth in 20 patients were included in this study. The surgical procedure was as follows: the gingival flap was elevated root planing and bone defect debridement were done. In the experimental group (Exp) of 24 teeth in 10 patients, the Nd: YAG laser was irradiated to the root surface, bone defect and theinside of the gingival flap after root planing and bone defect debridement (3.0 W, 30 seconds, 3 times). Inaddition, the laser was irradiated around the mucogingival junction immediately after surgery (1.5W, 1minute, 3 times). In the control group (Cont) of 19 teeth in 10 patients, no intervention was made followingsurgery and anti-inflammatory drugs were taker as soon after surgery as possible. VAS was performedimmediately after surgery, at 1, 2, 3, 4, 5 and 6 hours in one day and at 1, 2, 3, 4, 5 and 6 hours in two days.<BR>Healing was uneventful in all patients. Statistical analysis by the Wilcoxon signed-rank test indicated that VAS of Exp was significantly higher than Cont between 1 hour and 3 hours in one day and VAS of Cont wassignificantly higher than Exp between 1 hour and 5 hours in two days (p<0.05).<BR>This study suggests that laser irradiation and anti-inflammatory drugs may have almost the same pain reliefeffect after periodontal and endodontic surgery.
- 日本レーザー歯学会の論文