牙根纵裂治疗的探讨

A Study of the Treatment of Root Diastema.

目的 :探讨对牙根纵裂的治疗方法。方法 :对牙根纵裂的裂隙清理、冲洗、消毒 ,用稀薄的玻璃离子粘合 ,随机采用结扎丝、带环、临时冠固定 ,再常规根管治疗 ,烤瓷冠或金属冠修复。对牙根上 1/ 3纵裂的活动牙组织瓣的去、留分实验组和对照组 ,实验组 :保留活动牙组织瓣 ,按上述方法修复 ;对照组 :拔除活动牙组织瓣 ,常规根管治疗 ,桩钉固位 ,烤瓷冠或金属冠修复。结果 :裂隙临时采用结扎丝、带环、临时冠固定后治疗和修复的成功率分别是6 9.4 4 %、88.5 7%、93.88% ,临时冠固定与结扎丝固定的差异有显著性 ,与带环固定的差异无显著性 ;实验组和对照组修复的成功率分别是 93.75 %和 33.33% ,二者有显著性差异。结论 :尽量保存活动的牙组织瓣 。

Objective: To probe methods in the treatment of root diastema. Method: To clear, flush, and sterilize the root diastema first. And then bind it with dilute glass ionomer, fix it with ligation wire, band, and temporary crown at random. After that, treat it in a routine way as root-canal therapy, fixation with dowel pin and restoration with baked-porcelain crown and metal crown. Dealing with whether to keep or to remove activity tooth tissue valve of upper one third of root diastema can be divided into experiment group and control group.Experiment group: keeping activity tooth tissue valve and restore it as told above. Control group: extracting activity tooth tissue valve. And then treat it in a routine way as root-canal therapy, restoration with baked-porcelain crown and metal crown. Result: The successful rate of the cure and restoration to fix it temporarily with ligation wire,band, and temporary crown respectively are: 69.44%?88.57%?93.88%.Fixation with temporary crown is obviously different from fixation with ligation wire, but there's no significant difference between fixation with temporary crown and with band. The successful rate of restoration in experiment group and control group are respectively 93.75% and 33.33%. The difference is quite distinct. Conclusion: Try every means to reserve activity tooth tissue valve. It has the best effect to treat and restore it after fixing it with temporary crown.