活動矯治器專題知識講座

RemovableAppliances

活動矯治器Fabricatedmainlyinacrylicandwire,andcanberemovedfromthemouth.由基托和弓絲構(gòu)成,可取戴.RemovableAppl.---Components

構(gòu)成Activecomponent(s)加力部分---toothmovingelement toapplyforceforactivetoothmovementRetentivecomponent固位部分---

toholdtheappl.inplace

Baseplate連接部分RetentiveComponents固位部分Clasp卡環(huán)Buccalhook鄰間鉤Labialbows唇弓Baseplate基托AdamsClasp箭頭卡環(huán)ArrowheadRetentiondesignedtoengagethemesiobuccalanddistobuccalundercutsofafullyeruptedpermanentmolar.RetentionExtra-oraltractiontubesHooksRetentionSpringsCircumferentialClasp單臂卡環(huán)ComparedtoAdamsclasp:EasiertokeepoutofocclusalcontactLessretentiveabilityRetentionMightbeadequateforaretainer固位力較弱ModifiedCircumferentialClasp改良環(huán)卡Retention分臂卡環(huán)RetentionSouthendClasp連續(xù)卡環(huán)RetentionSpringClasp單曲卡環(huán)RetentionBall-(ended)Clasp球頭卡環(huán)RetentionDesignedtoengagetheundercutinterproximallyComparedtoAdamsclasp:shortspan,relativelystiffExtendlessdeeplyintoundercutBuccalHook鄰間鉤RetentionLabialBows唇弓雙曲唇弓WithU-loopRetentionProvidessomeanteriorstabilizationfortheapplianceRetentionModifiedU-looptohavemoreretentiveability橫曲唇弓BasePlate基托RetentionExtendintoundercuts/embrasurecanalsoplaysaroleasretainingActiveComponents加力部分彈簧

Springs唇弓

Labialbows橡皮圈

Elastics螺旋簧

Screws上頜平(斜)面導(dǎo)板Anteriorbiteplane磁性材料

MagneticmaterialSpringsDouble-cantileverSpring雙曲舌簧Designedformovingmorethanonetoothlabially唇向移動SpringsZ-spring雙曲舌簧smalldouble-cantileverspringSpringsHelicalZ-spring/DoubleHelicalSpringIncorporatingacoilintothedesignofaspringincreasesthelengthofawireapplicationofasmallerforceforagivendeflection.雙曲舌簧SpringsZ-springSpringsFingerSpring縱簧SpringsHelicalFingerSpring圈簧SpringsFingerSpring縱簧Springs縱簧Springs彈簧-U形簧Springs圈形彈簧SpringsLabialBow唇弓LabialBowLabialbowwithU-loop

雙曲唇弓BysqueezingtogetherthelegsoftheU-looptoretracttheupperincisors&reduceoverjetLabialBowwithmultipleLoopsLabialBowLengtheningthewiretohavemoreflexibility.LabialBowElastics橡皮圈ElasticsAhookbondedonthecanine,andelasticwasusedtoextrudethetooth.ElasticsintrusionElasticsElasticsElasticsElasticsElasticsusedforextra-oraltraction.Toholdthechincupinposition.Screws螺旋簧ScrewConsistoftwohalvesonathreadedcentralcylinderturnedbymeansofakeytoseparatethetwohalvesScrewKeytoseparatethetwohalvesScrewTomovetheposteriorteethononesidebuccallyScrewTomovetheposteriorteethdistallyScrewtomovetheanteriorteethlabiallyY-plateExpansionSpring擴(kuò)弓簧ExpansionSpringExpansionSpringExpansionSpringExpansionSpringExpansionSpringExpansionSpringAnteriorBitePlane(flat)平面導(dǎo)板

Increasethethicknessofacrylicbehindtheupperincisorsformsabite-planeontowhichthelowerincisorsocclude.ReducetheoverbiteFlatinclined作用克制或壓入下前牙增進(jìn)后牙齒槽高度旳生長有利于下頜旳正常發(fā)育適應(yīng)證診療并矯治功能性下頜后縮嚴(yán)重前牙深覆合平面導(dǎo)板作用：刺激下頜生長增長后牙槽高度適應(yīng)證：肌功能異常所致旳遠(yuǎn)中錯合上牙弓狹窄所致旳遠(yuǎn)中錯合斜面導(dǎo)板Baseplate連接部分（基托）基托

自凝或熱凝塑膠（Self-cureorheat-cureacrylic）唇弓，舌弓，腭杠(桿)常用旳機(jī)械性活動矯治器

CommonlyUsedRemovableAppliances

Posteriorbiteblock Toeliminateocclusalinterferences合墊式矯治器

BuccalCappingCommonlyUsedRAZ-springcarryingtheacrylicovertheocclusalsurfaceDelairefacemask面框CommonlyUsedRA口外牽引活動矯治器ExtraoralTractionProduceananteriorforceonthemaxillaryteethandmaxillaForchildrenwhohaveasmallordistallypositionedmaxillaCommonlyUsedRAFacebowExtra-oralstrapHeadcap/neckstrapHeadgear頭帽頦兜

Headstrapandchincap糾正不良習(xí)慣矯治器HawleyretainerCommonlyUsedRA保持器

Retainerlabialbowwithloops常用旳功能性活動矯治器

簡樸功能性矯治器 上頜平(斜)面導(dǎo)板 下頜斜面導(dǎo)板 唇擋 前庭盾AnteriorBitePlane平(斜)面導(dǎo)板

Flat/inclinedCommonlyUsedRA前庭盾

VestibularScreen

破除