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Journal of Oral Laser Applications

Year 2002
Volume 2 , Issue 3

Pages: 181 - 185

Laser Therapy to Prevent Postoperative Pain and Trismus During Extraction of Mandibular Impacted Third Molars

Koukichi Matsumoto/Yuichi Kimura/Emre Altundasar/Xiaogu Wang/Nelson Tatsunari Ishuzaki/Kaoru Koike

Two semi-impacted mandibular third molars were extracted in combination with CO2 and Er,Cr:YSGG laser irradiation. In order to reduce the pain at the local anesthesia injection site, continuous wave CO2 laser at 2 W for 0.5 s was applied on the gingival surface and mucous membrane to be infiltrated. As a result, the patient did not feel pain when the local anesthesia was applied. The incision through the gingiva and mucous membrane covering the impacted teeth was made without bleeding using the CO2 laser. The removal of the alveolar bone was attempted with an Er,Cr:YSGG laser. In order to save time, an air turbine was used to cut the bone and the coronal portion of the impacted teeth. During the extraction, the CO2 laser was intermittently used for coagulation. After extraction of the teeth, CO2 laser irradiation was applied to the wound surface in defocused mode and in the same manner before and after suturing. CO2 laser was also used on the surface of the bilateral TMJ region with the intention of preventing postoperative pain and trismus. As a result, postoperative pain and trismus did not occur after the extraction of two mandibular impacted third molars.


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