【摘要】 目的:探讨对损坏至龈缘下1.5 mm~3.0 mm的前牙牙根作修复前的正畸牵引术和牙龈切除术,保存龈下残根的修复方法。方法:选择5例患者,4例外伤,1例根面龋,通过正畸牵引,龈缘明显高于邻牙的患者,作牙龈切除术修正牙龈外形,固定2个月~3个月后进行桩冠修复。结果:5例患者均取得较为满意的效果。结论:通过修复前的正畸牵引术,将位于龈下3 mm以内的残根牵出龈缘,再加以牙龈切除术恢复牙龈正常形态,既保留了常规应拔除的牙根,又可获得较好的功能和美观效果。更多还原

【Abstract】 Objective:To explore the restoration methods of the application of orthodontic traction,gingivectomy and conservation of subgingival residual roots before restoration in anterior teeth roots damaged below the gingival margin(1.5 mm～)(3.0 mm).Methods:Five selected patients were carried out orthodontic traction(4cases were trauma,and 1 case was root caries).The patients with gingival margin higher than the next teeth were performed gingivectomy to adjust the gingiva contour.Then the roots were fixed for 2 or 3 months to do the restoration of post crown.Results:Five patients found more contented effects.Conclusion:By orthodontic traction before restoration,the residual roots below subgingival(3 mm) were drawn from subgingival level to supragingival level to do gingivectomy and rehabilitate gingiva normal shape.In this way,we not only maintain the unrestored roots but also acquire ideal function and esthetic results.更多还原