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Clinical research about post and core of molar in single root canal

ZHONG Zhi-Hua,HE Guo-quan,ZHOU Xian-lue.The Department of Stomotalogy,Central Hospital of Jingzhou,Hubei Jingzhou 434000,China.  
Objective:To analyze the clinical observations about post and core of molar fixed in single root canal which used to restore badly broken-down molar.Method:To make cast post-core of 67 badly broken-down molar in the single root canal.On the control group,we made multiple root canal post.After that,we fixed it with full crown.To observe the result after 1 year.Result:We discovered movement in 1 tooth which be fixed at single root canal post-core,and ob-served that other tooths and control group did not move and fitting between post-core and radicular inner wall is very well.Conclusion:It was well simple way that used single post and core of badly broken-down molar fixed in single root canal.It was no significant difference between single root canal post and multiple root canal post.
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