资源描述：
《颞下颌关节镜盘复位固定术后错（牙合）的发生及治疗》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、上海交通大学硕士学位论文颖下颌关节镜盘复位固定术后错（牙合）的发生及治疗姓名：王保利申请学位级别：硕士专业：口腔临床医学指导教师：杨驰20070401上海交通大学页学院2004级硕上学位论文2.年龄、ID分期在暂时错牙合组和长期错牙合组之间存在着显著性差异，长期错牙合组患者年龄较大，ID分期较高；3.MRI显示关节盘形态、繰突骨质改变情况2组间存在显著差异。課突下降距离，关节上间隙、后间隙增加值2组间也存在显著性差异(p<0.05)；4.正畸托槽牵引组与对照组疗效之间存在显著性差异(p<0.05)。，牵引组的患者咬合关系基本恢复到术前水平。结论：关节镜下盘复位固定术后约20.2%的患者
2、会长期存在错牙合，与患者的年龄和ID分期有关；MRI可以较客观地评价术后是否会长期存在错牙合；可采用颌间弹性牵引技术来治疗这种错牙合。关键词：颖下颌关节，结构紊乱，关节镜，关节盘复位固定术，磁共振，错牙合,颌间弹性牵引OCCURANCEANDTREATMENTOFMALOCCLUSIONAFTERARTHROSCOPICDISCREPOSITIONANDFIXITIONOFTEMPOROMANDIBULARJOINTABSTRACTOBJECTIVE：Thepurposesofthisstudyweretoevaluatetheincidence,clinicalmanifestati
3、on,prognosis,influencingfactorsandtreatmentofmalocclusionafterTMJarthroscopicdiscrepositionandfixation.METHODS:243patientswith308jointsunderwentTMJarthroscopicdiscrepositionandfixation.BilateralMRIexaminationontemporomandibularjointwasimmediatelyperformedpreoperativelyandata1-weekfollow-up.1.Pat
4、ientsocclusionwasassessedatthebeforeoperationandfollowingpostoperativetimes:immediatepostoperation,3d,7d,14d,21d,28d,35dand42d.StatisticswereappliedtoanalyzetheincidenceofmalocclusionandtherecoverytimeoftemporarymalocclusionwithSAS6.12softwarepackage・2.Toevaluatethedifferencesbetweentemporarymal
5、occlusiongroupandlone-timemalocclusiongroup,somepatientsinformationwerecompared,whichincludingpatientsage,gender,IDstage,thehistoryofID-hietc.1.30unilateralIDpatientswererandomlyselectedfromeachgroup.MRIwasusedtoassesstheposition,morphologyofdiscandosseouschangesofcondyle.Theanteriorjointspace,s
6、uperiorjointspace,posteriorjointspaceandcondylepositionweremeasuredonMRIbeforoperationandpostoperationinbothTMJside・TheseMRIvarableswereanalyzedwithSAS6.12softpackeagetoevaluatethedifferencesbetween2groups・2.30patientswhohavemalocclusionforalongtimeafterarthroscopicsurgeryweredividedintotwogroup
7、srandomly.Treatmengroupconconsistedof20patientswhoweretreatedbythemeansofapplyingorthodonticbracketsandashortarchbarcombinedwithligaturesandintermaxillarytraction.Controlgroupconsistedof10patients,whorecivednotreatment.Compa
