腺样体肥大对错(牙合)儿童颌骨发育影响的头影测量分析

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1、英文摘要TheeephalometriestudyofadenoidhypertrophyondentofacialdevelopmentinchildrenwithmalocclusionsABSTRACTObjective：ToinvestigatetheeffectsofadenoidalhypertrophyondentofacialdevelopmentinchildrenwithmalocclusionsutilizingX-raycephalometrystudy．Methods：Thestudycon

2、sistedoftwogroups：Onegroupwaschildrenwithadenoidhypertrophygroup(GroupI)andtheothergroupwasthecontrolgroup(GroupI1)．Theyallcamefromout-patientswhorequiredtreatment．InGroupI，therewere60children，agedfrom7to12(9．78+1．61years)years，ofwhomtherewere30malesand30female

3、s．ThethicknessofhypertrophyA，WasthedistancefromthebumpofhypertrophyaltothetangentBofoccipitalslopesoutside，extendingtheverticallinetodothereversetopalatewasthewidthofnasopharynxN．A／Ncalledadenoidal—nasopharyngealratio(ANratio)．WhenA／N>0．66，thechildrenwereselect

4、edinGroupI，whohadnotgotanyorthodonticstreatmentandsurgicaloperationonmouthandnose，IntheGrouplI，therewere66children，agedfrom7to12years(10．02+1．63years)，ofwhomtherewere3malesand3females．Theyallhavenohistoryoforthodontics，nasalobstructionorsnoring．MeasuringAandNin

5、thesamewayaswhatwasdoneinGroupI．WhenA／N_<0．66，5英文摘要thechildrenwereselectedtobeobjectsofobservationinGroup口．A1lthesubjectsweretakenheadlateralprojectionswithX-ray．A1ltheheadfilmsweremadetoobtaincephalometriclandmarksbytransparentSulfatepapertwice．Scanningtheproj

6、ectionsIntocomputerandusingspecialsoftwaretomeasurethem．Theaverageofthetwomeasurementswererecorded．Weselected14cephalometriclandmarks，3ReferenceplanesreferringtotheinvestigationofFuMinkui．Thecephalometriccontentconsistedof3linearand13angularcephalometricitemsre

7、flectingthedentofacialdevelopmentobservation，whichwereSNAangle，SNBangle，ANBangle，NA-PAangle，NP．F’Hangle，U1．NA，Ul—NAangle，Ll—NB，L1一NBangle，U1．L1angle，U1一SNangle，Ⅷ一SNangle，FH一Ⅷangle，L1．Ⅷangle，YaixangleandPojNB．BasedonANBanglewedividedthewholesubjectsintothreeclas

8、sesofmalocclusioninbothgroups．AllacquireddatawereconcentratedintablesandstatisticalanalysesweremadebySPSS13．0todeterminethedifferencesinGroup口andGroup口．Results：1．Comparisono