舌侧托槽间接粘着—C．L．A．S．S．系统制作方法

产生于二十世纪七十年代的舌侧矫治技术［１］,随着矫治理论和舌侧正畸器材的不断完善,在二十世纪九十年代再次引起了患者和正畸医师的关注。这种将托槽粘着于牙齿舌面的矫治技术,在长时间的矫治过程中既不会影响患者唇侧的美观也不会增加唇的突度［２］,因此它满足了部分成人患者因职业和社交活动的需要而提出“美观正畸”［３］到的要求。 众所周知,准确的托槽粘着位置是取得良好矫治效果的关键。与唇侧矫治不同,受体位等因素的影响,正畸医师很难通过目测或利用托槽定位器等工具将舌侧托槽直接粘着在正确的位置上,这为以后的治疗…     

无托槽隐形矫治技术附件的临床粘结技巧

无托槽隐形矫治技术是近年来随着计算机技术、三维重建技术与工程制造技术的发展而出现的一种新型正畸矫治技术,为正畸医生提供了一种新的正畸理念和治疗手段[1-2]。在隐形矫治技术的临床应用中,附件的粘结是非常重要的环节和步骤,它直接影响到牙齿移动的效率和矫治目标的实现[3]。目前无托槽矫治技术的临床研究不断丰富,但有关粘结附件的临床操作技术未见文献报道。     

无托槽隐形矫治技术拔除前磨牙的支抗设计与临床控制

无托槽隐形矫治技术的诞生满足了人们对于牙齿正畸美观、舒适的需求,成为了成人和青少年很好的正畸治疗手段。在最初使用无托槽隐形矫治器时,它只能被用于排齐牙列等简单正畸治疗。随着无托槽隐形矫治器生产商和临床医生对完成病例不断回顾和研究,当前无托槽隐形矫治技术体系不断完善并逐渐精准化,其中对于拔除前磨牙的无托槽隐形矫治也趋于成熟。本文将对无托槽隐形矫治技术拔除前磨牙的支抗设计和临床控制进行综述。     

《当代儿童正畸矫治经典应用》出版发行

书籍名称:《当代儿童正畸矫治经典应用》主编:李小兵出版社:四川大学出版社出版时间:2021年7月内容简介:《当代儿童正畸矫治经典应用》以临床儿童早期矫治用各种矫治器为出发点,以经典儿童活动矫治器、活动/固定功能矫治器、儿童固定支架式矫治器、局部固定多托槽矫治器为主线,阐述了各类儿童错畸形早期矫治的临床治疗理论与技术。     

间接粘接技术细节与难点:如何整体提高正畸临床的工作效率

托槽粘接是固定正畸矫治的关键技术之一,托槽粘接的准确性直接影响到正畸矫治的精确度以及矫治效率.间接粘接是一种通过在模型上粘接托槽,制作转移托盘将托槽转移到口内的一种托槽定位和粘接技术,具有粘接精确性高、减少临床椅旁操作时间、提高医生工作效率的优势,目前已广泛应用于固定矫治托槽的粘接.本文简要阐述了间接粘接的技术流程、特点以及临床实际操作中的细节要素与难点.     

无托槽隐形矫治技术——口腔正畸的机遇与挑战

无托槽隐形矫治技术是20世纪90年代后期出现的一种新兴正畸矫治技术。该技术没有与传统固定正畸技术一样的托槽和矫正弓丝等装置,其生产和加工过程是基于数字化三维重建与快速成型技术等现代先进的高科技技术,使得该技术在美观性、舒适性、便捷性、疗效可预测性等方面均具有无可比拟的优越性,受到国内外口腔正畸界的广泛关注,并在正畸临床治疗中得到不断应用和推广。随着材料学、计算机软件和硬件学、工程制作技术等相关技术的快速发展,无托槽隐形矫治技术在其发展中迎来了一些新的发展机遇;与此同时,作为一个刚刚出现10多年的新技术,其发展与临床应用还面临诸多的困难和挑战。本文对该技术的发展历史、现状以及应用前景进行论述。     

无托槽隐形矫治与牙周健康的相关性研究

正畸治疗的目的是矫治患者错牙合畸形,在达到平衡、稳定、美观的治疗效果的同时,减少或避免正畸治疗对患者牙周健康的不利影响。与传统固定矫治器相比,无托槽隐形矫治器具有舒适、美观、可摘、易清洁的优势,已在临床上广泛应用于错牙合畸形的矫治。本文将对无托槽隐形矫治技术对正畸患者牙周健康的影响作一综述,从无托槽隐形矫治力学特性、牙周临床指标和牙周炎症微环境三个方面进行研究与分析,为无托槽隐形矫治技术在临床上的实际应用提供参考。     

舌侧自锁托槽矫治技术的研究进展

舌侧自锁托槽矫治技术是将自锁托槽应用于舌侧正畸的一种全新的矫治方法.该技术兼容了自锁托槽和舌侧矫治2项技术,既拥有自锁托槽固有的低摩擦力、短矫治疗程和节省门诊椅旁操作时间等优势又同时具备舌侧矫治"隐形矫正"的美观性.因此,舌侧自锁托槽矫治技术具有其他矫治技术所不具备的优点,其先进性不言而喻,必定会在将来的正畸界占有一席之地.本文就舌侧自锁托槽矫治技术的研究进展作一综述.     

无托槽隐形矫治技术研究进展

无托槽隐形矫治技术集多种现代化工艺、高科技手段、社会人文理念以及最新的矫治技术于一身,在许多欧美国家的正畸界颇具影响力.在国内,该技术也有近10年的研发与应用,但病例报告相对较少,许多医师对该技术了解甚少.本文对无托槽隐形矫治技术的概念、类别、原理、优缺点等作一综述,以拓展其在临床的应用.     

无托槽隐形矫治技术客户端软件原理及其应用

软件模拟设计的审核和修改是无托槽隐形矫治技术非常重要的环节,也是其区别于传统正畸技术的重要特点。本文以iOrtho 6.0软件为例,对无托槽隐形矫治技术客户端软件的原理以及常用功能进行详细介绍。     

Molar intrusion in the management of anterior openbite and ‘high angle’ Class II malocclusions

Abstract

Orthodontic correction of anterior openbite has conventionally involved extraction therapy or an adjunctive maxillary impaction osteotomy. However, bone anchored molar intrusion treatments have been reported in recent years as a less invasive alternative for such patients. This paper describes the concepts and treatment processes involved with mini-implant molar intrusion to correct anterior openbite and reduce patients’ excessive vertical facial proportions.     

正畸治疗需要关注的牙体牙髓病学基础知识

本文系统阐述了与正畸治疗相关的牙体牙髓病学基础知识,提出(1)天然牙齿表层釉质与健康的牙髓是防止疾病入侵机体的重要防线,正畸治疗应该严格有创操作的应用范围,并制定相应的规范.(2)成年人牙根尖已经成熟,随年龄增加根尖孔变小.不适当的外力容易导致牙髓缺血缺氧,导致系列牙髓和根尖周的问题,临床需要密切关注正畸过程对牙髓的短期与长期影响.(3)正畸治疗装置增加牙表面清洁的难度,龋病与牙周病的防控应成为正畸治疗的要件.治疗前必须进行系统风险评估,治疗方案中应该包括对龋病、牙周病的防护措施,并在治疗中要持续评估龋病、牙周病的防范效果,在最终治疗效果评价中也要强调对龋病、牙周病的控制情况.     

Orthodontic treatment need in Asian adult males

Orthodontic treatment in adults has gained social and professional acceptance in recent years. An assessment of orthodontic treatment need helps to identify individuals who will benefit from treatment and safeguard their interest. The purpose of this study was to assess the objective and subjective levels of orthodontic treatment need in a sample of orthodontically untreated adult Asian males. A sample of male army recruits (n = 339, age 17-22 years, Chinese = 258, Malay = 60, Indian = 21) with no history of orthodontic treatment or craniofacial anomalies participated in the study on a voluntary basis with informed consent. Impressions for study models were taken. Objective treatment need was assessed based on study model analysis using the Index of Orthodontic Treatment Need (IOTN). Questionnaires were used to assess subjective treatment need based on subjective esthetic component (EC) ratings. Fifty percentage of the sample had a definite need for orthodontic treatment (dental health component [DHC] grades 4 and 5), whereas 29.2% had a moderate need for treatment (DHC grades 3). The occlusal trait most commonly identified was dental crossbite. Malay males had the highest percentage with a definite need for treatment for both dental health and esthetic reasons in comparison with Chinese and Indian males. However, there was no difference in the level of treatment need among the ethnic groups (P > .05). No correlation between objective and subjective EC scores was found (P > .05). A high level of investigator-identified treatment need was not supported by a similar level of subject awareness among the adult sample.     

Acquired mesio-occlusion in adults: treatment without appliances.

1. The two types of mesio-occlusion are developmental (true Class III) and acquired. 2. In acquired mesio-occlusion the mandible can be retruded comfortably so that maxillary and mandibular incisors meet edge to edge. This cannot be done by the patient with developmental mesio-occlusion. 3. The extent and severity of periodontal disease cannot be predicted from the severity of the malocclusion. 4. In most patients the treatment of choice for acquired mesio-occlusion is coronal reshaping and periodontal therapy if periodontal disease is present. 5. Orthodontic therapy may be used as an adjunctive therapy in selected patients. However, disadvantages are often greater than advantages when orthodontic therapy is used to treat acquired mesio-occlusion in adults.     

Endodontic Microsurgery with Orthodontic Treatment in a Mandibular Left Molar with Symptomatic Apical Periodontitis

Endodontic microsurgery has reduced the degree of treatment trauma compared with traditional apical surgery and further increased the success rate of natural teeth retention. However, when root apices of the mandibular posterior teeth are far from the buccal cortical bone surface or near to the inferior alveolar nerve, the operational difficulty of endodontic microsurgery increased greatly. Orthodontic treatments may be helpful to decrease the difficulties. In this case, the roots of a highly calcified mandibular molar diagnosed as previously initiated, symptomatic apical periodontitis were moved initially buccally by orthodontic treatment in 2 months. Then, endodontic microsurgery was completed. The tooth remained asymptomatic and functional with a radiographically healing periapical lesion at the 4-, 12-, and 24-month follow-ups.     

正畸治疗对口腔相关生活质量影响的研究

[摘要] 目的 研究正畸治疗对口腔相关生活质量的影响,分析这些影响在不同的人群以及在各个维度中是否存在差异。方法 随机抽取正畸治疗患者182例进行问卷调查,采用《一般情况调查表》、《口腔相关生活质量调查表OHIP-14(中文版)》对患者进行测评,并对他们在量表上的得分进行比较。结果 正畸治疗对口腔生活质量有明显影响,在治疗第1个月时影响最大,对功能障碍、生理疼痛、心理不适、社交障碍等维度的影响均较明显。在性别和安氏分类方面得分没有显著差别,成年组较未成年组在总分及各分维度上均有明显差别,是否拔牙的患者之间在总量表得分、生理疼痛、心理障碍和社交障碍等维度也呈现出显著性差异。结论 正畸治疗影响患者的生活质量,在矫治的第1个月尤为明显,成年人和拔牙患者受到的影响也更为显著。     

Development of a treatment outcome standard as a result of a clinical audit of the outcome of fixed appliance therapy undertaken by hospital-based consultant orthodontists in the UK

Bristol's much-publicised cardiac surgery problems and subsequent enquiry(1) have drawn attention to the need for audit of treatment outcomes throughout all hospital specialties. Patient anxiety, government policy and the desire of the professions to re-establish public confidence, have further encouraged changes to the system. For medical and dental specialties, such challenges have already been taken up by the Royal Colleges with the establishment of clinical effectiveness committees. Hospitals have modified their procedures and, for consultants, yearly appraisal is already a reality. The Orthodontic Clinical Effectiveness Working Party of the Royal College of Surgeons of England (now the Clinical Effectiveness Committee of the British Orthodontic Society) set up this audit to measure the outcome of fixed appliance treatment and to establish a benchmark for the standard of treatment to be expected from a consultant orthodontist. This paper describes how the audit was carried out, presents the findings and goes on to discuss some of the wider issues involved in audit, clinical governance and appraisal. The Consultant Orthodontists Group of the British Orthodontic Society funded this audit and the results and data set of dental casts remain their property.     

Tip-Edge技术在成人错(牙合)患者修复前正畸治疗中的应用

目的:寻求成人错患者修复前正畸治疗的有效手段。方法:对16例伴牙列缺损的成人错患者,用Tip-Edge技术正畸,结合修复手段进行治疗,以建立正常咬合关系,恢复失牙功能,随访1年观察其疗效。结果:治疗后患者有正常的咬合关系和正常的失牙修复,经1年随访观察,有13例患者未见错复发和修复牙的异常,成功率为81.25%。结论:Tip-Edge技术结合义齿修复治疗,是建立良好的咬合关系、恢复失牙功能的有效方法。     

LONG-TERM STABILITY OF AN ANTERIOR OPEN-BITE MALOCCLUSION TREATED IN THE MIXED DENTITION: A CASE REPORT

A clinical case with anterior open-bite, treated in the mixed dentition, is presented. This approach demonstrates one of the possible approaches of treatment, which is capable of interfering with growth and redirecting its vectors. Orthodontic and orthopedic methods were used, consisting of slow maxillary expansion, through a fixed palatal crib soldered in a bi-helix appliance, and high-pull traction on the mandible for 16 hours a day. After eight years of follow-up, stable outcomes were accomplished. These results may be explained by the fact that treatments were performed at the appropriate period of development, thus establishing perioral muscular equilibrium, matching the final period of facial growth. The combination of orthodontic and orthopedic treatments was necessary to prevent the need of further orthognathic surgery treatment.