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目的:探讨折裂磨牙的分类及手术拔除方法。方法:统计分析486例折裂磨牙的折裂类型,在拔除方法上随机分为实验组和对照组,实验组386例先用牛角钳拔,对照组100例先用磨牙钳拔。对牙钳夹碎牙冠后的残留部分,先分根再分别挺出;对残留的牙根分别采用普通牙挺或根尖挺、三角挺挺出;对于残留牙槽窝内位置较深的断根,采用根尖挺或翻瓣去骨的办法拔除,统计各种方法拔除牙的数量。应用SPSS13.0软件包对数据进行多元方差分析。结果:上颌磨牙以纵折为主,下颌磨牙以斜折为主。上颌第一磨牙用牛角钳和磨牙钳完全拔除率分别是35%(50/143)和12.5%(8/40),差异有显著性(P=0.041);上颌第二磨牙用牛角钳和磨牙钳完全拔除率分别是40%(30/75)和23.5%(4/17),差异有显著性(P=0.016);下颌第一磨牙用牛角钳和磨牙钳完全拔除率分别是37.5%(45/120)和21.4%(6/28),差异具有显著性(P=0.004);下颌第二磨牙用牛角钳和磨牙钳完全拔除率分别是48%(23/48)和20%(3/15),差异无显著性(P=0.662)。结论:对于折裂磨牙的拔除,应首选牛角钳,约40%的牙可以完整拔除,70%以上的牙可以不同程度地拔除,然后再选用牙挺或三角挺拔除残留牙根;对个别残留较深的断根,采用根尖挺或翻瓣去骨法拔除。按此流程操作,可以快速拔除折裂牙,减少创伤,减少手术时间,减轻患者痛苦。
Objective: To investigate the classification of molars and surgical removal methods. Methods: The fracture types of 486 cases of fractured molars were statistically analyzed. The experimental group and the control group were randomly divided into experimental group and control group. In the experimental group, 386 cases were harvested by crook and 100 cases in control group. For the residual part of the toothbrush after the dental crown is broken, the root of the tooth is clamped again and then separately. The root of the remaining tooth root is normal or very sharp, and the triangle is very stiff. For the root of the residual socket, , Using root tips or flap flap removal method, statistics of the number of methods to remove the teeth. Data were analyzed by multivariate analysis of variance using SPSS 13.0 software package. Results: The maxillary molars were longitudinally folded and the mandibular molar was mainly oblique. The maxillary first molar removal rate was 35% (50/143) and 12.5% (8/40) respectively, the difference was significant (P = 0.041). The maxillary second molars were fixed by means of bullnose forceps and molars The rate of complete removal of the mandibular first molar was 40% (30/75) and 23.5% (4/17), respectively, with significant difference (P = 0.016). The complete removal rate of the first molar was 37.5% 45/120) and 21.4% (6/28), respectively (P = 0.004). The rate of complete removal of the second molar was 48% (23/48) and 20% (3) / 15), no significant difference (P = 0.662). Conclusion: For the removal of fractured molars, the first choice is the horns forceps, about 40% of the teeth can be completely removed, more than 70% of the teeth can be removed to varying degrees, and then choose the teeth or the triangle to remove residual roots; Deep root, rooted or flap flap bone removal method. Press this process operation, you can quickly remove the fracture teeth, reduce trauma, reduce the operation time and reduce patient pain.