gbr术后不同时期行种植体植入术与扭矩相关性分析-correlation analysis between implant implantation and torque at different stages after gbr surgery.docx

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gbr术后不同时期行种植体植入术与扭矩相关性分析-correlation analysis between implant implantation and torque at different stages after gbr surgery.docx

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gbr术后不同时期行种植体植入术与扭矩相关性分析-correlation analysis between implant implantation and torque at different stages after gbr surgery

种植体的稳定性未发现显著差异。二期修复术后三月复诊种植体周围牙槽骨吸收情况与引导新生骨成骨时间有一定关系，随着新生骨成骨时间的延长种植体周围牙槽骨吸收量在早期有减少趋势。关键词：GBR术；位点保存；种植术；植入扭矩；初期稳定性TheRelationshipResearch betweenImplantSurgery at Different Periods after GBRSurgery andTorqueAbstract:Objective:bymeasuringintendsingrowingareasGBR aftersixmonths,ninemonths,oneyearafterimplantsurgeryandtooth extraction tooth extraction wound healing naturally District implantsurgeryimplanttorquevalue，recordingthestabilityoftwofixedtorquevaluewhenit’sin30N.Forecasttheinitial stabilityoftheimplantsurgery indifferenttimesafterGBRsurgery,thusobservetheclinicalfeaturesin differentstagesofnewborn-inducedboneintoboneandrefertotothe timingofimplantingtheImplantationafterclinicalGBRsurgery. Method:ThesampleselectedfromJanuary2010toDecember2012,48 patientstotheDentistryoftheChengduMilitaryRegionAuthorities Hospital(allmale,aged40-60years,mean:48.64+8.641)51posterior mandible(mandibular6,7),dividedintoexperimentalandcontrolgroups. Allsubjectstobesurgicalregionalalveolardistanceofthetopofthe mandibularcanalisgreaterthanorequalto10mm,thewidthisgreater thanorequalto6.75mmtheadjacentteethprobingnoattachmentloss. Inclusioncriteria:experimentalgroup:patientswithmandibularteeth diagnosedwithtoothfracturesordeepcariesandcannotbereserved, unplugby GBRsurgery,andthenimplementoftheimplantsurgery andsurgerybeforetheXrayshowsthelengthofthealveolarcresttothe apicalatequalto8.5mm.Controlgroup:thenaturalbonegroup,the mandibularteethfoldlineofteethduetocariesortoothremovalofmore thanoneyearaftersurgery,notrepairorlineactivities,fixedpartial dentureprosthesishasbeenremoved,theX-rayimageshowsmissing teethalveolarbonedensity, withouttheoriginaltoothsocketareato reducethedensityoftheshadow.1.Asystemicdiseasepatientscannot undergosurgery;2.Systemicdiseasessuchasdiabetes,osteoporosis, etc.;3.Psychologicalorpsychiatricdiseasewhichcanaffect patients dailyoralmaintenanceandcannotundergosurgerybecauseof psychologicalfactors;4.Thepatientswhichhaveseveregingivitis,severe periodontaldiseaseand