A定义aesthetic美观alveolar牙槽骨anchorageresistance to unwanted tooth movement caused by the reactive component of an orthodontic force; refers also to the intra- and extraoral structures that supply the resistanceAngles classification of occlusiona definition of malocclusion based on the relationships of the first permanent molarsangulationthe tilt of the long axis of a tooth in a mesial or distal direction; see inclinationAnkylosed Primary Teeth乳牙粘连anterior crossbiteone or more teeth in the maxillary anterior segment is lingual to one or more of the opposing teeth in the mandibular anterior segment in maximum intercuspationanterior segmentall of the canine and incisor teeth in a given dental archarch circumference or arch perimeterthe distance from the mesial contact of one first permanent molar to its antimere as measured through the contact points or buccal cusp tips of all of the intervening teeth, ignoring those teeth that are malpositioned or blocked out so that the measurement represents an ideal arch form; see arch lengtharch depththe perpendicular distance from a point between the central incisors to a line connecting the mesial contacts of the first permanent molars; see arch lengtharch lengthsame as arch depth; but note that arch length is often used as a synonym for arch circumference or arch perimeterarch wirea wire applied to two or more teeth through fixed attachments to cause or guide orthodontic tooth movementattached lingual frenum舌系带过短B术语定义banda circular metal strip that is adapted to fit closely around a tooth; various components of an orthodontic appliance may be welded or soldered to itbase, bracketthe part of a bracket that is attached either to a metal band or bonding padBegg applianceBegg矫治器bimaxillaryboth the upper and lower jawblocked outa tooth that is positioned away from its proper position in the dental arch due to insufficient spacebodily movement整体移动Bolton analysisBolton指数分析bonded lingual retainer舌侧粘结式保持bonding padthe retentive portion of a fixed orthodontic attachment which locks it mechanically to the bonding material; the pad usually has a fine mesh surfacebrachycephalica short skull, with a cranial index of 80 or more; see cranial index This term, or a variant "brachyfacial," is sometimes used to describe a short, wide face, properly referred to as euryprosopic .bracketa metal, plastic, or ceramic fixed attachment which holds an arch wirebuccal segmentall of the premolar and molar teeth in a given quadrantbuccal tubea fixed attachment which is open only at each end. Tubes may be round or rectangular in cross section; round tubes are usually .045 inches in diameter to receive auxiliaries such as a facebow or lip bumper, rectangular tubes are either .018 x .025 or .022 x .028 inches in order to receive arch wires and generally are placed on the most distal molar tooth in the appliance.C术语定义camouflaged orthodontic treatment掩饰性正畸治疗Cast Analysis model analysis模型分析center of resistance阻抗中心center of rotation旋转中心CephalometricsX线头影测量cervical headgear颈牵引chief complaint主诉chin-cup颏兜Cleft jaw and face颌、面裂Cleft lip and palate唇、腭裂Clinical Examination临床检查combination headgear联合（水平）牵引condylar髁突Continuous force持续力corrective orthodontics一般性矫治craniofacial growth and development颅面生长发育crowding or spacing拥挤和间隙curve of SpeeSpee曲线D术语定义Delayed Incisor Eruption切牙迟萌dental age牙龄dental history牙科病史dentofacial orthopedic牙合面矫形Diagnosis and treatment planning诊断和治疗计划differential tooth movement差动牙移动E术语定义Ectopic Eruption异位萌出edgewise appliance方丝弓矫治器Enamel demineralization釉质脱矿extraoral orthodontic force口外正畸力extraoral orthopedic force口外矫形力extrusion伸长F术语定义fixed appliance固定矫治器fixed retaining appliance固定保持器G术语定义Gingivitis牙龈炎Growth Modification生长改良H术语定义Hand wrist x-ray手腕骨X片harmony平衡Hawley retainerHawley保持器Headcap头帽Heredity and environment遗传和环境high-pull headgear高位牵引I术语定义Ideal normal occlusion理想正常合Idiopathic Root resorption特发性吸收implant anchorage种植支抗impression taking取模Individual normal occlusion个别正常合Interceptive orthodontics阻断性矫治intermaxillary anchorage颌间支抗Intermittent force间歇力intramaxillary anchorage颌内支抗intrusion压低Invisalign无托槽隐形矫治器J术语定义job model工作模型L术语定义Leeway space替牙间隙M术语定义malocclusion错合畸形Mandibular Deficiency上颌发育不足Maxillary Excess下颌发育过度Maxillary Midline Diastema上中切牙间隙mechanical retention机械保持medical history医学病史Minimal Root resorption微小性吸收minor tooth movement(MTM)小范围牙移动Mixed Dentition混合牙列，替牙合molar relationship磨牙关系N术语定义nature retetion自然保持O术语定义obstructive sleep apnea hypopnea syndrome OSAHS阻塞性睡眠呼吸暂停低通气综合征openbite开合optimal orthodontic force最适矫治力oral examination口腔检查Oral heal。