两种种植导板对牙种植体植入精度的影响比较

Comparison of the Influence of Two Kinds of Implanted Guiding Plate on Implantation Precision of Dental Implant

目的:比较改良式全程导航种植导板与先锋钻导航种植导板对牙种植体植入精度的影响。方法:按照随机数字法将2017年6月-2018年6月笔者医院行种植义齿修复的30例(125颗种植体)牙列缺损患者分为A组与B组,A组患者16例(67颗种植体),B患者14例(58颗种植体)。A组患者采用改良式全程导航种植导板进行种植体植入手术,B组患者采用先锋钻导航种植导板进行种植体植入手术。比较术前种植体设计植入位置与术后种植体实际位置之间的口腔锥形束CT(CBCT)数据,测算两组的种植体颈部水平及垂直偏差、种植体根端水平及垂直偏差、种植体中心轴线角度偏差。结果:A组种植体的颈部水平偏差、颈部垂直偏差、根端水平偏差、根端垂直偏差及中心轴线角度偏差分别为(0.863±0.504)mm、(0.787±0.442)mm、(1.608±0.947)mm、(1.301±0.599)mm、(3.992±2.601)°,B组种植体的颈部水平偏差、颈部垂直偏差、根端水平偏差、根端垂直偏差及中心轴线角度偏差分别为(1.057±0.518)mm、(1.023±0.610)mm、(2.396±1.385)mm、(2.279±1.446)mm、(7.439±3.621)°,两组比较差异均具有统计学意义(P<0.05)。结论:改良式全程导航种植导板对牙种植体植入精度的影响明显低于先锋钻导航种植导板,对提高种植体的成功率具有积极作用。

Objective To compare the the effect beween improved whole-course navigation implanted guiding plate and pioneer drill navigation implanted guiding plate on implantation precision of dental implant.Methods 30 cases(125 cases of implants)of dentition defect patients were planed to carry out implant prostheses which was divided into group A and gooup B according to random number table in our hospital from June 2017 to June 2018.There were 14 cases(67 cases of implants)of dentition defect patients in group A and 16 cases(58 cases of implants)of dentition defect patients in group B.The patients were carried out implant surgery under the improved whole-course navigation implanted guiding plate in group A and the patients were were carried out implant surgery under the pioneer drill navigation implanted guiding plate.The buccal cone-beam CT(CBCT)was compared between preoperative implant placement design and the actual position of postoperative implant,the horizontal and vertical deviation of implant neck,horizontal and vertical deviation of implant root,center axis angle deviation of implant was calculated in two groups.Results The horizontal and vertical deviation of implant neck,horizontal and vertical deviation of implant root,center axis angle deviation of implant was(0.863±0.504)mm,(0.787±0.442)mm,(1.608±0.947)mm,(1.301±0.599)mm,(3.992±2.601)°in group A,respectively and the horizontal and vertical deviation of implant neck,horizontal and vertical deviation of implant root,center axis angle deviation of implant was(1.057±0.518)mm,(1.023±0.610)mm,(2.396±1.385)mm,(2.279±1.446)mm,(7.439±3.621)°in group B,respectively.There was statistical significance between two groups(P<0.05).Conclusion The effect of improved whole-course navigation implanted guiding plate was significantly lower than the pioneer drill navigation implanted guiding plate on implantation precision of dental implant,it had positive effect on increasing the success rate of implant.