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目的:观察和比较不同手术切口对拔除低位阻生下颌第三磨牙术后效果的影响。方法:选择18～30岁未萌出的双侧低位水平阻生下颌第三磨牙患者35例,随机选取患者的一侧磨牙列,采用信封切口的手术方案(A组),另一侧采用角形切口(B组)。采用同种拔牙方法拔除阻生下颌第三磨牙。观察两组患者术后第2天的反应(局部肿胀、疼痛和术后开口受限)及其他并发症发生情况,采用SPSS11.0软件包对数据进行χ2检验。结果:手术后第2天,B组术后重度肿胀的发生率显著高于A组(P<0.05)。术后开口受限程度及术后疼痛发生率A组与B组比较差异无显著性(P>0.05)。结论:不同手术切口设计与术后肿胀程度相关,信封切口术后肿胀发生程度较轻。
Objective: To observe and compare the effect of different surgical incision on the effect of mandibular third molar removal. Methods: Thirty-five patients with unilateral edentulous mandibular third molar who were not erupted from 18 to 30 years old were enrolled in the study. One side of the patient’s molars were randomly selected, the operation was performed with envelope incision (group A) (Group B). Extraction of impacted mandibular third molar with the same method of extraction. The response (local swelling, pain, postoperative opening limitation) and other complications of the two groups were observed on the second postoperative day. The data were analyzed by χ2 test using SPSS11.0 software package. Results: On the second day after operation, the incidence of severe swelling in group B was significantly higher than that in group A (P <0.05). The degree of postoperative opening restriction and the incidence of postoperative pain were not significantly different between group A and group B (P> 0.05). Conclusion: The design of different surgical incisions is related to the degree of swelling after operation, and the incision swelling after envelope incision is less severe.