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《頭帽-肌激動(dòng)器聯(lián)合自鎖托槽雙期矯治骨性ⅱ類錯(cuò)(牙合)》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、Headgear．．a(chǎn)ctivatorandSelf-ligatingBracketsCombinationintheTreatmentofSkeletalClassIIMalocclusionMasterdegreecandidate：Hong—YangSupervisor：ProfessorZhang-GuirongVice—supervisor：AssociateprofessorZhang。XuepengMajor：ClinicalStomatologyAbstractObjective：Toevaluatetheefficacyofheadgear-ac
2、tivatorandself-ligatingbracketscombinationofdual-phasecontinuoustreatmentonpubertalpeakofskeletalClassIImalocclusion．Methods：AmalepatientwithskeletalClass1ImalocclusionwasselectedfromShenyangStomatologicalHospitalinJuly2009，whowas12yeasold2months．Normalma)(maandmalldibularretrusionrel
3、ativetothemaxilla；thebilateralmolardistaltipofthetipoftherelationship；deepoverbiteofincisorIIIdegreeandoverjetIIIdegree．Thepatientisinthepeakperiodofgrowthanddevelopment，whoistreatedbythedual’phasecontinuousandnon．extractiontreatment．Inthefirststagetreatment，headgear-activatorwasadopt
4、edbecausethismaypromotethedevelopmentofmandible，controlsthemaxillarygrowthandimprovesthesofttissueprofileappearanceinthemeantime．Inthesecondstagetreatment，self-ligatingbracketstechnologywasusedbecauseitCaneffectivelvexpandthedentalarchwidthandshortenalignmenttime．Collectmodel，shooting
5、face，mouthgraph，panoramicradiographs，lateralcephalogramsinordertoobservetheteeth，rootdevelopmentsituation，andmeasurechangesinthehardtissueandsofttissue．Thecephalometricmeasurementwasmadetoanalysetheoutcome·Results：Thetreatmenttakes25months．Self-ligatingbracketsorthodontictechniquerela
6、tivelyshortensthetreatmenttime．Afterdual-phasecontinuoustreatment，patientsteetharealignment；anteriorteethoverbiteandoverjetweresoNed；bilateralmolarsandcaninesarebacktoneutralrelationship；alltheteethachievedgoodocclusion．Thereisnosignificantincreaseint11e如ll—archlengthafterthedual．Dhas
7、econtinuoustreatment．However，theanteriorandmiddleofthearchwidthincreasedsignificantly．theposteriordentalwidthwasnotobviouslyincreased·CeDhalometriccomparativedataanalysisbeforeandafterthetreatment：(1)Maxillaryis大連醫(yī)科大學(xué)碩士學(xué)位論文almostunchanged，t11emandiblehavesignificantchangeinthesagittal
8、andve
