骨性ⅲ类患者正颌手术前后软硬组织变化分析

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1、上海交通大学医学院2006级硕士学位论文respectively.Reconstructthe3Dmodel,fixthemarkpoints,exportthemeasurementresultsandanalyzethedatasbyStatistics.5.ComparetheCTdataofnormalocclusionpeopleandClassIIIpatients.Reconstructthe3Dmodel,fixthemarkpoints,exportthemeasurementresultsandanalyzethedatasbyStatistics.RESULTS

2、:1.ThemodleofskullwasconstructedandCTscanned.ThedataofCTwasprocessed.The3DmodelwasmadebySimplantsoftwareandwecansimulateoperationandanalyzeonit.2.ItwassucceededbySimplantsoftwaretoself-definethemarkpointsandmeasurementvariables.3.Accordingtothe10patients’testing,itshowedthattherepeatabilityofth

3、emarkpointsandmeasurementvariablesisgood.4.ItisstrongcorrelationoccurredinBpointandPogpointtotheothersonthepatientsofBSSROsurgeryanditisalsostrongcorrelationoccurredincorrespondingLipointMepointtoL1pointMespoint.Thesoft-to-hardtissuemovementratiosrangedfrom0.78to1.08formandibularvariablesandfro

4、m0.33to0.73formaxillaryvariablesinBimaxillarysurgery.Theratiosofmaxillarysoft-to-hardtissuemovementweregenerallylowerthanofthemandibularmovementinbothhorizontalandverticaldirections.5.ComparingthenormalocclusionpeopleandClassIIIpatients,itfindsthatthevariablesof∠Ls-Ns-Li，rn-Sn-Ls，∠Ns-Li-FH，Ls-E

5、，Li-Earemoreimportantvariablesthantheothersinaffectingtheprofileesthetics.CONCLUSIONS:1.AfterthemodelofskullwasconstructedandCTscanned.The3DmodelwasmadeexactlybySimplantsoftwareandcanfacilitateoperation.The3Dmodelwasalsocanbefixedthemarkpointsandmeasurementvariablesbyselfdefiningdelimiter.2.Iti

6、sfeasibletofixthepointsandmeasurementvariablesconsecutivelyandit上海交通大学医学院2006级硕士学位论文showedthatthemethodscanbeusedinclinicalworksandexperimentresearches.3.ThemostsignificantfindinginBSSROsurgerypatientsisthattheBpointandPogpointcanbeusedinanalyzingthemovementofsofttissuechanges.Themovementratios

7、ofmandibularmovementarestrongercorrelationthanofthemaxillarymovementinbothhorizontalandverticaldirectionsfortheBimaxillarysurgery.Whilecomparingtothenormalocclusionpeople,thereareabnormalitiesonbone,teethandsofttissueprofileinClas