氢氧化钙对乳牙感染根管作用的研究

Clinical Studies of Calcium Hydroxide Disinfecting Infectious Root Canal of Deciduous Tooth

目的探讨氢氧化钙用作乳牙感染根管消毒剂的效果。方法通过临床120例患者的对照观察,X线片以及实验细菌学检验,对氢氧化钙用于乳牙感染根管与常规使用的甲醛甲酚(FC)、樟脑酚消毒剂作对比,比较三种消毒剂消毒前后根管内细菌的变化以及治疗后的反应。结果乳牙感染根管中的细菌与成人恒牙感染根管相似,是以厌氧菌为主的混合感染。氢氧化钙对乳牙感染根管有很强的杀菌、抑菌作用,优于樟脑酚,与FC相似,但氢氧化钙对根尖周组织无刺激性及不良作用;而且对儿童尤其安全、有效,临床效果肯定。结论氢氧化钙是安全、有效而理想的乳牙感染根管的消毒药物。

Objective To search for a more ideal way to disinfect infectious root canal of deciduous tooth.Methods Ac-cording to bacterial occurrence and clinical effect,40cases of infectious root canal of deciduous teeth disinfected with Ca(OH) 2 were investigated,the other40cases with traditional way of using FC and CP respectively,were used as the control.Results Fist of all,the bacteria of deciduous tooth infectious root canal were same as the bacteria of permanent tooth in-fectious root canal.Secondly,Ca(OH) 2 was stronger in disinfecting deciduous tooth infectious root canal.Thirdly,so far as sterilization was concerned,Ca(OH) 2 had the same disinfectant as FC,and was better than CP,but FC had some irritation and poisonous side-effects to periodical tissue.So Ca(OH) 2 was safe and effective for deciduous tooth infectious root canal.Conclusion It was a more ideal way to disinfect deciduous tooth infectious root canal by Ca(OH) 2.