摘要
目的评价不同穿龈高度的修复基台在种植修复5年后的长期临床疗效。方法选取2015年1月至2015年9月于南昌大学第四附属医院口腔科就诊的牙列缺损行种植修复的患者,根据完成最终修复时选用修复基台的不同穿龈高度将其分为4组:A组(≤1 mm)、B组(2 mm)、C组(3 mm)、D组(4 mm),根据分组情况分别测量每颗种植体在种植即刻、完成最终修复时以及修复负荷至少5年之后的曲面体层放射线片,分析种植体颈部的骨组织变化情况。结果在观察期内,经过至少5年的功能性负荷,63颗种植体的留存率为96.83%;4组种植体的周围骨组织吸收量中A组[T2-T1:(-0.627±1.030)mm]与B组[T2-T1:(-0.017±0.424)mm]的差异具有统计学意义(P<0.05);不同穿龈高度的修复基台与种植体颈部平台暴露关系差异具有统计学意义(P<0.05)。结论自锁锥度固位种植体在完成最终修复时选用不同的穿龈高度的修复基台对种植体周围骨组织的吸收量有一定的影响,在植入深度相同的情况下用长穿龈修复基台可以减少在功能负荷后种植体颈部平台的暴露,从而降低种植体受周围环境感染的风险。
Objective To evaluate the long-term clinical efficacy of restoration abutments with different transgingival heights after 5 years of implant restoration.Methods Patients who underwent implant restoration for dental defects in the Department of Stomatology,the Fourth Affiliated Hospital of Nanchang University from January 2015 to September 2015 were selected and divided into four groups according to the different transgingival heights of the restoration abutment selected when the final restoration was completed:Group A(≤1 mm),Group B(2 mm),Group C(3 mm),Group D(4 mm).According to the grouping situation,measurement was performed immediately after the implantation,when the final restoration was completed,and at least 5 years after the restoration using curved tomography to analyze the changes in the bone tissue at the implant neck.Results During the observation period,after at least 5 years of functional loading,the success rate of 63 implants was 96.83%.Among the four groups,the amount of bone tissue absorption around the implant in group A[T2-T1:(-0.627±1.030)mm]and in group B[T2-T1:(-0.017±0.424)mm]was statistically significant(P<0.05).The relationship between the prosthetic abutment with different transgingival heights and the exposure of the implant neck platform was statistically significant(P<0.05).Conclusion For self-locking taper-retained implants,when the final restoration is completed,the choice of restoration abutments with different gingival heights will have a certain impact on the absorption of bone tissue around the implant.Long gingival restorations are used under the same implant depth.The table can reduce the exposure of the implant neck platform after functional weight-bearing,thereby reducing the risk of infection of the implant from the surrounding environment.
作者
杨晶晶
胡常琦
余正荣
龚金梅
黄江琴
魏洪武
Yang Jingjing;Hu Changqi;Yu Zhengrong;Gong Jinmei;Huang Jiangqin;Wei Hongwu(Department of Stomatology,Fourth Affiliated Hospital of Nanchang University,Nanchang 330000,Jiangxi Province,China)
出处
《中国口腔种植学杂志》
2022年第1期22-27,共6页
Chinese Journal of Oral Implantology
关键词
锥度种植体
穿龈高度
骨吸收
平台暴露
Taper implant
Transmucosal height
Bone resorption
Platform exposure
