CAJ | 학술논문

目的：总结自行设计制作一分根器的临床应用效果。方法：选取200例需要拔除的复杂多根牙随机分为2组，研究组采用自制刃部四凹槽结构的分根器分根后拔除患牙，对照组采用传统的劈凿法拔除患牙。记录手术时间、患者的损伤情况和术后病人反应。结果：观察组手术时间和术后并发症均明显少于对照组（P＜0．05），自制分根器在分根、挺根的使用效果良好。结论：自制分根器用于分根拔牙中具有安全、组织损伤小、病人痛苦小等优点。
목적：총결자행설계제작일분근기적림상응용효과。방법：선취200례수요발제적복잡다근아수궤분위2조，연구조채용자제인부사요조결구적분근기분근후발제환아，대조조채용전통적벽착법발제환아。기록수술시간、환자적손상정황화술후병인반응。결과：관찰조수술시간화술후병발증균명현소우대조조（P＜0．05），자제분근기재분근、정근적사용효과량호。결론：자제분근기용우분근발아중구유안전、조직손상소、병인통고소등우점。
Objective: To evaluate the application of a homemade tooth extraction device in extraction of multi-rooted teeth. Methods: Homemade separation root device consists of a four-grooves structure in components of tooth edge , a long pole of 12 cm, a transverse handle and a convex hammer and chisel base at the top. 200 multi-rooted teeth were randomly divided into 2 groups. Group 1(n=100), teeth were extracted using homemade new instrument. Group 2(n=100), teeth were extracted using conventional devices. Extraction procedure and postoperative outcomes were recorded and compared. Results: There were significant difference in operative duration and postoperative complications between two groups (P<0.05). Conclusion: The homemade root separation device is safe in operation, less injury of tissue , little sufferings of patients and other advantages.