ObjectiveTo compare the clinical effects of the two flap design in the extraction of horizontal impacted third molars exposed to 1/2 of the distal mandibular adjacent surface.
MethodsA total of 200 teeth were selected from patients with horizontal impacted third molars exposed to 1/2 of the distal and middle mandibular surfaces, and the patients were randomly divided into the group A and group B.The group A and group B were treated with intragingival crevicular incision and envelope incision, respectively.The time of tooth extraction, intraoperative and postoperative complications and soft tissue healing were compared between two groups.Each parameter was recorded before and after operation, and the data were statistically analyzed.
ResultsThe differences of the operation time, intraoperative complications and pain degree after 1, 3 and 7 days of operation between two groups were not statistically significant(P>0.05).The degree of postoperative facial swelling in two groups decreased with the increasing of time(P < 0.01).The degree of swelling and mouth opening limitation in group A were lighter than those in group B after 1 and 3 days of operation(P < 0.05 to P < 0.01).After 1 day of operation, the bleeding degree in group A was slightly lower than that in group B(P < 0.05), and there was no statistical significance in the bleeding degree between two groups after 2 and 7 days of operation(P>0.05).After 7 days of operation, the healing of soft tissue in group A was better than that in group B(P < 0.05).
ConclusionsIn the horizontal impacted third molars with distal adjacent surface exposure ≥ 1/2 of the lower jaw, the method of intra gingival crevicular incision can reduce the postoperative response of patients, facilitate the healing of adjacent tissues, and improve the postoperative life quality of patients, which is worthy of clinical promotion and application.
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