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Gao Y.,The Ninth Peoples Hospital of Shenzhen City | Jiang A.,The Ninth Peoples Hospital of Shenzhen City | Li B.,The Ninth Peoples Hospital of Shenzhen City | Yang L.,The Ninth Peoples Hospital of Shenzhen City
Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology | Year: 2011

OBJECTIVE: To study the effect of piezosurgery in the extraction of mandibular impacted third molars.METHODS: 228 mandibular impacted third molars with relative difficulty for extraction according to the scheme of degree of difficulty for extraction were included in the study, and were divided into two groups (114 teeth each group): Test group (treated by piezosurgery), control group (treated by traditional chisel osteotomy). The surgery time and pain, restriction of mouth opening and facial swelling after surgery, were evaluated in both groups.RESULTS: The average surgery time was (16 +/- 5.2) min in test group and (30 +/- 8.7) min in control group. The surgery time, pain, facial swelling rate, and restriction of mouth opening were lower than control group (P<0.05).CONCLUSION: Compared with traditional chisel osteotomy, the average surgery time with piezosurgery was significantly shorter and the complications are obviously reduced. Source

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