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时间:2019-10-15
《不同植入扭矩对种植体骨结合影响的临床初步探究.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、口腔医学2015年3月第35卷第3期·201·不同植入扭矩对种植体骨结合影响的临床初步探究黄丞蔚,徐世同,杨晓喻,杨涛[摘要]目的利用共振频率分析法观察不同的种植体植入扭矩值对不同时间点种植体稳定性以及骨结合效果的影响。方法根据纳入及排除标准选择牙列缺损成年患者49名,共植入86颗种植体,手术由同一高年资种植科医生操作完成。根据种植体植入就位后的所测最终扭矩值(Itv)进行分组:A低扭矩组,Itv为0~15N·cm;B中扭矩组,Itv为16~35N·cm;C高扭矩组,Itv为36~50N·cm。利用共振频率分析仪分别对种植即刻、术后8周、术后12周的稳定指数(ISQ)进行测量分析,比较组内以
2、及不同组间不同时间点种植体稳定性以及骨结合效果的差异。结果①各扭矩组内比较,随着时间的延长,所有组ISQ均呈上升趋势,其中低、中扭矩组内各时间点间均有统计学差异,高扭矩组内各时间点间均无统计学差异。②各扭矩组间第8周ISQ值无明显差异,低扭矩组第8周ISQ值增加幅度最大;各扭矩组间第12周ISQ值无明显差异。结论种植体植入8周以内是形成良好的种植体骨结合的关键时期;不同的种植体植入扭矩值对于8周以后的骨结合效果影响差异不显著。[关键词]骨结合;稳定系数;植入扭矩;共振频率;牙种植体[中图分类号]R783.6[文献标识码]A[文章编号]1003-9872(2015)03-0201-04DOI:
3、10.13591/j.cnki.kqyx.2015.03.010StudyontheeffectsofdifferentinsertiontorquevaluesonimplantosseointegrationHUANGChengwei,XUShitong,YANGXiaoyu,YANGTao.(DepartmentofImplantology,GuangdongProvincialStomatologicalHospital,Guangzhou510280,China)Abstract:ObjectiveTostudytheeffectofdifferentinsertiontorque
4、valuesonimplantstabilityandosseointegrationbythemeansofResonanceFrequencyAnalysis.Methods49patientswerechosenrandomlyaccordingtothefollowingstandards,with86screwsim-planted.Furthermore,thesameexperiencedclinicianfinishedallsurgeries.Allimplantsweredividedintothreegroupsbasedonthein-sertiontorqueval
5、ues:GroupA,Itv0~15N·cm;GroupB,Itv20~40N·cm;GroupC,Itv>40N·cm.ThedentalimplantstabilitywasmeasuredtoevaluatetheosteointegrationbyResonancefrequencyanalysiswhenimplantswereplacedimmediatelyandatthetimepointof8weeksand12weeksafterthesurgeries.Results①ISQimprovedasthetimeextendedinallgroups.Statistical
6、differencewasshowninlowandmediumgroupwhilethere'snosignificantdifferenceinhighinsertiontorquevaluegroups.②LowISQgroupshowedthemostobviousincreaseduring8weeks;therewasnosignificantdifferenceamongthethreegroupsin8weekand12week.ConclusionsThe8-weektimepointisacriticaltimeforimplantshealingtodevelopahi
7、gh-qualityosseointegration.Whatismore,therewasnoobviousdifferenceoftheosseointegrationobservedatthe8-weektimepointwhenISQchangedamongthegroups.Keywords:osseointegration;ISQ;inserttorque;resonancefrequency;a
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