上颌推磨牙远移技术演示文稿
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推磨牙远移技术进展杨志伟【摘要】@@ 临床上对于安氏Ⅱ类错伴牙源性前牙拥挤的病例,需开拓间隙排齐拥挤前牙同时矫正Ⅱ类磨牙关系.正畸临床中开拓间隙的主要手段是减小牙量或(和)扩大牙弓,使牙量与骨量趋于协调,同时兼顾牙、颌、面三者之间的协调性、稳定性和颜面美观[1].【期刊名称】《贵州医药》【年(卷),期】2011(035)007【总页数】4页(P661-664)【作者】杨志伟【作者单位】贵阳市口腔医院,55000l【正文语种】中文【中图分类】R783.5临床上对于安氏Ⅱ类错牙合伴牙源性前牙拥挤的病例,需开拓间隙排齐拥挤前牙同时矫正Ⅱ类磨牙关系。
正畸临床中开拓间隙的主要手段是减小牙量或(和)扩大牙弓,使牙量与骨量趋于协调,同时兼顾牙、颌、面三者之间的协调性、稳定性和颜面美观[1]。
减小牙量的方法包括拔牙和邻面去釉,拔牙虽是获得间隙的最好方式,但并非所有病例都适合拔牙;邻面去釉虽可避免拔牙而获得间隙,但有严格的适应症,获得间隙的量也非常有限。
牙弓扩展包括长度与宽度扩展,是增加骨量的主要措施。
其中,牙弓长度扩展的方法主要有唇展前牙和推磨牙远中移动;牙弓宽度扩展方法主要有腭中缝扩展、牙弓正畸扩展及牙齿-齿槽骨功能性扩展。
唇展前牙也有其明确的适应症,通过牙弓横向扩展以增加牙弓宽度和长度是获得间隙的方法之一,但矫治效果受患者年龄影响较大,且咬合关系不够稳定,易导致不可避免的复发;而推磨牙远中移动开拓间隙是正畸临床较常用的一种方法。
近年来,国内外正畸医生对于拔牙矫治多持慎重态度,在结合考虑患者颅、颌、面关系后,多采用少拔或不拔牙原则,作为非拔牙矫治重要内容的推磨牙远移开拓间隙则成为临床研究热点之一。
现将推磨牙远中移动的可行性以及各种推磨牙远移装置的作用原理及临床特点作一综述。
1 推磨牙向远中移动的解剖生理依据推磨牙向远中移动近来开展的较为普遍,除科学的进步、矫治技术水平提高之外,还有其内在的物质基础。
首先上颌结节是上颌生长发育的中心之一,上颌结节作为磨牙远中移动的物质基础从解剖结构可知,上颌骨为疏松多孔结构,有丰富的血液循环,骨改建活跃。
两种上颌磨牙后移方式的临床应用比较摘要】目的探讨总结采用两种不同固定矫治方式远移上颌磨牙的有效性、优缺点及治疗经验。
方法将18例磨牙前移所致安氏Ⅱ类错颌畸形病例随机分成两组,分别采用自制改良Lokar磨牙远移器推磨牙向后法(A法)和主弓丝上置NiTi 推簧加力方式推磨牙向远中法(B法)两种不同远移方式进行矫治。
结果方法A磨牙远移速度平均约1.6mm/月,但是部分磨牙远移较多的有较明显的远中倾斜,需矫正其远中倾斜后才能进入下一部治疗。
方法B磨牙远移速度平均约1.1mm/月,磨牙以整体远移为主,但是NiTi推簧加力须在初步整平才能进行。
结论如牙列拥挤错位较明显或磨牙需远移较多可选择Lokar矫治器推磨牙向后(A方法)。
如牙列拥挤度较小,排列较整齐,磨牙远移量不太大宜选择主弓丝上置NiTi推簧加力方式推磨牙向远中(B方法)。
【关键词】磨牙后移方式Ⅱ类错颌安氏Ⅱ类错颌是临床最常见的错颌畸形之一,其中上颌磨牙前移所致的牙源性的安氏Ⅱ类错颌占有一定的比例。
矫治方法通常为拔牙矫治和非拔牙矫治。
随着正畸理论及技术的不断发展,正畸界对于拔牙矫正的态度也日趋谨慎,许多以往需要采取减数治疗的“临界”患者,通过将上颌磨牙推向远中获取间隙,在不减数的情况下,以达到安氏Ⅰ类磨牙关系。
均取得了良好效果。
不拔牙技术矫治安氏Ⅱ类错颌可避免“正畸面容”,同时获得更好的咬合关系[1]。
上磨牙远中移动,获得间隙是治疗安氏Ⅱ类错颌的不拔牙矫治方法之一。
临床常采用推上颌磨牙向后的方法获得间隙,以解除牙列拥挤[2]。
本文采用不同的两种固定后推磨牙装置远中移动上颌磨牙,以评价各自优缺点,现总结报道如下:1 资料和方法1.1 一般资料选取2006年7月~2008年3月在四川省什邡市人民医院口腔科就诊的因上磨牙前移所致的Ⅱ类错颌患者18例,随机分为两组:①采用自制的改良Lokar磨牙远移器推磨牙向后组(A组):共9例,男3例,女6例,年龄11~13岁,中位年龄12岁;②采用主弓丝上置NiTi推簧加力方式推磨牙向远中组(B组):共9例,男4例,女5例,年龄11.5~13.6岁,中位年龄12岁。
微种植体支抗推磨牙远中移动的临床研究作者:***来源:《中国美容医学》2021年第10期[摘要]目的:探究微种植体支抗推磨牙远中移动矫治安氏Ⅱ类错牙合畸形的临床疗效。
方法:回顾性分析2016年1月-2018年12月于笔者医院接受传统口外弓支抗治疗(对照组,n=60)及接受微种植体支抗治疗(研究组,n=60)的安氏Ⅱ类的错牙合畸形患者的临床资料。
对比两组矫治时间,计算两组牙冠、牙根远移值[上颌第一磨牙牙冠平均远中移动值(UM1E-Y)、上颌第二磨牙牙冠平均远中移动值(UM2E-Y)、第一磨牙牙根平均远移值(UM1A-Y)、第一磨牙牙根平均远移值(UM2A-Y)],比较两组治疗前后的其他牙齿相关指标[上颌第一磨牙近中颊尖点至Y轴的距离(U6-Y)、上颌第一磨牙牙根尖点至Y轴的距离(U6a-Y)、上颌中切牙长轴与SN平面夹角(U1-SN)]、硬组织指标[上齿、下齿槽座角(SNA、SNB)、上下齿槽座角(ANB)、牙合平面与SN平面夹角(OP-SN)]、软组织相关指标[上唇突度、下唇突度、鼻唇角(NLA)、上唇突距(Ls-E)]及咀嚼功能(咬合力、咀嚼效率)的差异。
结果:研究组平均矫治时间显著短于对照组(P0.05),而对照组较治疗前显著降低(P0.05),而OP-SN较治疗前上升(P0.05),而研究组OP-SN显著低于对照组(P[关键词]安氏Ⅱ类错牙合畸形;微种植体支抗;磨牙远移;咬合功能[中图分类号]R783.5 [文献标志码]A [文章编号]1008-6455(2021)10-0157-04Clinical Study on Micro-Implant Anchorage for Molar DistalizationCHEN Xu-dao(Department of Stomatology,Dazhou Integrated TCM &Western Medicine Hospital,Dazhou 635000, Sichuan, China)Abstract:Objective To explore the clinical efficacy of micro-implant anchorage for molar distalization in correcting Angle Class Ⅱmalocclusion. Methods A retrospective analysis was performed on clinical data of patients with Angle Class Ⅱ malocclusion who received traditional headgear anchorage treatment (control group, n=60) or received micro-implant anchorage treatment (study group, n=60)in our hospital from January 2016 to December 2018. The correction time was combined between the two groups, and the crown and root distalization values [average distalization value of maxillary first molar crown (UM1E-Y), average distalization value of maxillary second molar crown (UM2E-Y), average distalization value of first molar root (UM1A-Y), average distalization value of second molar root (UM2A-Y)] were calculated in the two groups. The tooth-related indicators [the distance from maxillary first molar mesiobuccal tip to Y axis (U6-Y), the distance from maxillary first molar root apex tip to Y axis (U6a-Y),angle between the long axis of maxillary central incisor and the SN plane (U1-SN)], hard tissue indicators [sella-nasion-A point, sella-nasion-B point (SNA, SNB), A point-nasion-B point (ANB), occlusal plane-SN plane angle (OP-SN)], soft tissue-related indicators [upper lip protrusion (Ls-SnPg), lower lip protrusion (Li-SnPg), nasolabial angle (NLA), upper lip protrusion distance (Ls-E)] and masticatory function (occlusal force, masticatory efficiency) before and after treatment were compared between the two groups. Results The average correction time in study group was significantly shorter than that in control group (P0.05), andU1-SN in control group was significantly lower than that before treatment (P0.05), and OP-SN was higher than that before treatment (P0.05), and OP-SN in study group was significantly lower than that in control group (PKey words: Angle ClassⅡ malocclusion; micro-implant anchorage; molar distalization; occlusal function安氏Ⅱ类错牙合畸形可分为1、2两个分类,其中安氏Ⅱ类1分类错牙合畸形在我国青少年人群恒牙期的患病率约20%,不仅影响患者牙齿咀嚼功能、牙列整齐,也会影响其面貌美观,不利于患者身心健康[1]。
• 456 .口腔医学2021年5月第41卷第5期无托槽隐形矫治技术推磨牙向远中的研究进展刘玲霞,关雨欣,武秀萍[摘要]尤托槽隐形矫治器在实现所有类型牙齿移动上,推磨牙向远中的效率最高但临床中容易出现磨牙远中倾斜,支抗 丧失等问题该文就隐形矫治推磨牙向远中的适应证、临床疗效、远移效率、支抗设计等4个方面进行综述,为临床提供参芍[关键词]磨牙远移;无托槽隐形矫治技术;临床疗效[中图分类号]R783.5 [文献标识码]A[文章编号]1003-9872(2021)05-0456-05[doi] 10.13591 /ki.kqyx.2021.05.014Research progress of molar distalization with clear aligner orthodonticsLIU Lingxia, GUAN YiLxin, Wl) Xiuping. ( Department of Orthodontics, Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, China)Abstract :File efficiency of molar distalization with clear aligner i s the highest in all types of tooth m o v e ments.H o w e v e r,i t i s easy to bring prol)lems of molar distal tipping and the loss of anchorage.This article reviews the indications,clinical efficacy,efficiency of m olar distalization and anchorage design of invisible orthodontic and provides reference for the c linical practice.Key words:molar distalization;clear aligner orthodontics;clinical efficacyStomatology,2021 ,41(5) :456-460无托槽隐形矫治技术通过三维扫描获取数字化 模型,利用计算机辅助设计和辅助制造生成一系列 个体化可摘式透明矫治器11。
双轨道矫治器远移上颌磨牙的临床研究目的:观察双轨道矫治器远移上颌磨牙的临床矫治效果。
方法:20例牙源性安氏Ⅱ类错牙合非拔牙患者,采用双轨道矫治器远移磨牙,在磨牙达到安氏Ⅰ类关系后用头影测量分析测量上颌磨牙的远移的效果。
结果:20例患者经双轨道矫治器治疗,均获得了间隙,上颌磨牙平均整体远移(5.2±1.97)mm,P<0.05,前牙覆牙合减少(2.9±1.02)mm,P<0.05,覆盖增加(3.4±1.86)mm,P<0.05,平均疗程5~7月,结论:双轨道矫治器可以有效地远中整体移动上颌磨牙。
Abstract: ObjectiveTo observe the clinival effects of double railway application on upper molar distalization. Methods Twenty patients presented ClassⅡmolar relationship.The clinical effect of both sides maxillary molars distalization of non-extraction cases was observed by Cephalomatric analysis before and after treatment by double railway application. ResultsAll cases molar were distalized successfully.The upper molars were distalized bodily on average (5.2±1.97)mm,P<0.05.the overbite was reduced (2.9±1.02)mm, P<0.05and the overjet was increased (3.4±1.86)mm,P<0.05.The duration for distalization of upper molar was from 5 to 7 months.ConclusionThe double railway application can achieve bodily distal molar movement.Key words:double rail way application;ClassⅡmalocclusion orthodontics;molar distalization在口腔正畸臨床治疗牙源性安氏Ⅱ类错牙合,多采用远中移动上颌磨牙,应用口外弓、改良“摆”式矫治器远移上颌磨牙比较多。
远中移动上颌磨牙技术【摘要】由于乳磨牙的过早缺失,患者家长没有足够的重视,未及时制作间隙保持器,尤其是患者第二乳磨牙早失导致第一恒磨牙向前移动,牙弓长度缩短所致。
当上颌第一磨牙向前移动而导致上颌前部牙弓缩短,上颌牙弓前部牙列产生拥挤,同时伴有磨牙远中关系。
另外,患者在混合牙列期由于治疗上颌骨发育不足而采用上颌前方牵引所导致的上颌磨牙向前移动,也可以表现为上颌牙列拥挤、磨牙呈远中关系。
安氏Ⅱ错牙合是口腔正畸临床上常见的错牙合畸形之一,通常表现为磨牙远中关系,上颌前部牙齿前倾或内倾,重度深OB,前部牙列拥挤等。
由于各种原因引起的上颌磨牙向前移位,而下颌牙列和下颌骨发育基本正常的上颌牙列轻中度拥挤,患者处于生长发育高峰期,远中移动上颌磨牙则是最有效的矫治方法之一。
各种推上颌磨牙向远中移动的矫正技术发展也很迅速,尤其近年来种植体支抗的发明及其在正畸临床中的广泛应用。
【关键词】非拔牙矫治;推磨牙向远中;安氏Ⅱ类错牙合Distal movement of the maxillary molars Technology Abstract:Because of the premature loss of deciduous molars, parents of patients without enough attention, not to make space maintainer, especially in patients with early loss of deciduous molars in second first molars moved forward, arch length shortening induced. When the maxillary first molar to move forward and lead to anterior maxillary dental arch is shortened, maxillary arch anterior dentition cause congestion, accompanied by the molar relationship. In addition, patients in the mixed dentition period due to treatment of maxillary deficiency and the use of maxillary protraction in maxillary molars moved forward, also can be represented as a maxillary crowding, molar distal relationship. Class II malocclusion is common in orthodontic clinic of malocclusion, usually shows the relation between molar maxillary anterior teeth, forward or introverted, severe deep OB, anterior crowding. Due to various causes of maxillary molars moved forward, and the mandibular dentition and mandible development basically normal maxillary dentition in patients with mild to moderate congestion, in growth peak, distal movement of the maxillary molars is one of the most effective method of treatment. Development of correction technology push and maxillary molar distal movement is also very rapidly, especiallyin recent years, implant anchorage method and its application in clinical orthodontics.Key words: non-extraction; Molar distalization; Class Ⅱ malocclusion1 引言随着人类的进化,以及饮食习惯的变化,颌骨的发育正处于相对缩小的趋势,尤其是下颌骨的发育欠佳在口腔正畸临床较为常见。