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1、四川太擘華西口腔醫(yī)學院碩士學位論文Skeletal，dentalandsofttissuechangesandtheratioofsofttissuetohardtissuemovementsduringtwelvemonthsoffunctionregulatortype3(FRIll)treatment．Postgraduate：Mengqiuju"illtor：DUxiAbstract1heaimsofthisstudyweretoevaluatethedental．skeletalandsofttissueeffe
2、ctsoftheFRIIIappliance，andtheratioofsofttissuetohardtissuemovementsduringtwelvemonthsoffunctionregulatortype3(FRm)treatment．nematerialofthisstudyconsistedof25patientswithfunctionalClasslIImalocclusionswhoreferredtotheDepartmentofOrthodontics，HuaxiStomatologyHospit
3、al，UniversityofSichuan．11boysand14gifts．TheywereselectedtotreatedexclusivelywiththeFRIIIapplianceforthisstudy．Themeanagesofthesubjectsinthebeginning(TO1andaftertheappliancehasbeentakenforabout12months(T12)Was9．9士1．4yearsand10．7±1．1years．Cephalogramswastakenindivid
4、uallyatTOandT12．Controlgroups：(1)Groupone：Sixty-fourcephalogramsofthepatients(31boysand33girls)beforetheirtreatmentstarted，whichhavethesimilarocclusalandskeletalcharacterswiththetreatmentgroup．Themeanagesofthesubjectswas9．8±0．3years．(2)Grouptwo：Sixty—fourcephalogr
5、amsofthepatients(32boysand32gifts)before4四川大學華西口腔醫(yī)擘院項士學住論文t11eirtreatmentstarted．whichhavethesimilarocclusalandskeletalcharacterswiththetreatmentgroup．111emeanagesofthesubjectswas10．9±0．3years．After12months’treatmentofFRIII：(1)TheincreaseoftheGo-PogandCo-Golengthw
6、ererestrained．TheANBangleincreased，theSNBangledecreased．Themandibularbonemovedbackward．n圮MP—FHangleandtheOP—FHanglerotatedclockwisely．卟eeffectsofF砌ⅡtreatmentontheS-Ptm,ANS-Me,N-Me，ANS-Me／N-Me，Co-Go／N—Me，SNAangle，PP-FHangle，PP-Ⅳ田angleWaslessmarked．(2)Thenasallabium
7、angleandthePoglabiumangleincreased．TheretrusionoflowerincesorsWasfoundinthisstudy．WhereastheprotrusionoftheSnpositionWasalsopresent．Thetissueprofileofthepatientbecomemoreattractive．TheratioofA．OLPtoLL．OLPwas0．8／1．a(chǎn)ndtheratioofL1-OLPtoPm’-OLPWas0．6：1．FRIIIcanblockt
8、hegrowthofthemandibularbone．AfterthetreatmentofFRlll，themandibularhasadownwardandbackwardrotation．Thetissueprlfileofthepatientbecomemoreattractive．Thera
