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EVALUATION EFFECTIVENESS OF LOW-LEVEL LASER THERAPY AFTER IMPACTED MANDIBULAR THIRD MOLAR SURGERY AT CANTHO UNIVERSITY OF MEDICINE AND PHARMACY HOSPITAL IN 2020-2022
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Abstract
Background: Based on the characteristics of laser on tissue, researchers performed studies about the application of low level laser therapy after third molar surgery to control swelling, pain, and trismus. Objectives: To evaluate the effect of low-level laser therapy to reduce pain, swelling, and trismus after surgical removal of impacted mandibular third molars. Materials and methods: 60 patients above 18 years old who had impacted lower third molar were selected. After a surgical extraction procedure immediately, each patient was applied an 810 nm diode laser (Laser Diode ADM Picasso Lite +), power 0,5W, using a 400µm handpiece, intraorally at 1cm from the extracted alveolar and extra orally at the insertion of the masseter muscle. Each position was applied in 30 seconds and repeated one more time after 30 seconds. Patients were evaluated for the intensity of the pain, swelling, and trismus at 1, 2, and 7 days postoperative. Results: The majority of patients had moderate pain in the first 6h after the anesthetic effect wore off. The intensity of pain was significantly decreased on the 1st day postoperative (81.7% mild level), most patients had no pain (90%) on the 7th day. Each patient administrated 4 analgesic tablets on average. Most patients need analgesics 3 days after surgery. Otherwise, swelling and trismus changed significantly in the 1st and 2nd postoperative compared before surgery (p<0.05) and became nearly normal on the 7th day. Conclusions: Low-level laser therapy was effective when apply after surgical extraction of the lower third molar to control pain, swelling, and trismus, particularly in reducing pain postoperatively.
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Keywords
Low-level laser therapy, impacted third molar, diode laser, surgery
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