Andrews六要素用于正畸病例数字化资料的临床回顾性研究

使用Andrews六要素对正畸病例数字化资料进行测量分析,探讨不同性别、拔牙与否及不同矫治器对正畸治疗结果的影响。     

无托槽隐形矫治对非拔牙病例矫治疗效的临床研究

目的：应用美国正畸专科医师委员会OGS（Objective Grading System）客观评分系统,对无托槽隐形矫治器临床矫正效果进行评价。方法：选择60例20～25岁非拔牙矫治的错颌畸形患者,随机分成两组,实验组采用无托槽隐形矫治器,对照组采用自锁托槽矫治器。用ABO测量尺对矫治完成后的石膏牙模型和全景片分别进行测量,测量参数包括：牙齿排列整齐程度、邻牙边缘嵴高度差值、颊舌向倾斜度差值、矢状向咬合关系差值、咬合接触紧密度、覆盖异常程度、邻面接触紧密度及牙根成角。评分结果输入SPSS13．0统计软件包进行分析。结果：除上下后牙颊舌向倾斜角及咬合接触两项有统计学差异外,其余指标均无统计学差异。结论：无托槽隐形矫治器对错殆畸形非拔牙矫治病例临床矫治效果可达到自锁托槽矫治器矫治的效果。     

Andrews口颌面协调六要素在侧貌美学中的应用

传统正畸治疗过于关注是否达到中性咬合关系这个目标,而对于是否能获得协调美观的软组织侧貌则很难预测。Andrews提出了口颌面协调六要素,通过使用面部外标志进行诊断,可以最大化协调口腔与颌面部关系,获得美学上的最佳治疗结果,并有利于保持口腔长期健康稳定。Andrews口颌面协调六要素的提出基于公认的口颌面协调的牙齿、颌骨的位置及关系,适用于各种种族、年龄、性别的患者。     

正畸完成病例评价标准研究进展

正畸治疗客观评价标准指数是用来对矫治病例的模型及X线片等各项指标进行测量、分析、归纳并同正常参考值范围进行比较,用于评价矫治效果的指标。近年来,正畸治疗客观评价标准指数用于矫治效果的评价越来越受国内外学者的青睐。文章对国内外5种常用评价正畸结果的牙合指数进行综述。     

Dr. Larry Andrews“口颌面协调六要素”西安巡讲

正畸医生应该没有人不知道什么是"Six Keys"的,也一定没有人不知道什么是"直丝弓矫治器",那么一定也会知道是谁发明了"Six Keys"和"Straight Wire Appliances"———那就是Dr.Larry Andrews。作为现代直丝弓技术的发明人,他发明的"Six Keys"被封为正畸直丝弓矫治技术的经典理论,22年在"Six Keys"理论基础上,     

无托槽隐形矫治系统的相关生物力学研究及病例

无托槽隐形矫治技术自20世纪90年代进入正畸临床后,以其美观性、舒适性、便捷性和疗效可预测性备受国内外正畸医生和患者的青睐。本文将主要就无托槽隐形矫治系统的生物力学特点,对国内外研究进展进行综述,以期为正畸医生在临床使用中提高工作效率和患者的满意度。     

无托槽隐形矫治技术在拔牙临界病例非拔牙治疗中的应用研究进展

正畸拔牙临界病例的治疗设计错综复杂,不同的矫治技术采用的设计方案有所不同。随着医疗新技术的不断发展,无托槽隐形矫治器得以推广,其移动牙齿的效能不断被证实。有专家提出无托槽隐形矫治技术相对于传统唇侧固定矫治技术在拔牙临界病例的非拔牙治疗中显示出优势。该文就无托槽隐形矫治技术三维方向移动牙齿的特点进行回顾与展望,总结分析此技术在拔牙临界病例非拔牙治疗设计中移动牙齿的优势,从而为正畸拔牙临界病例的治疗设计提供参考。     

不同复诊频率对隐形矫治效果影响评价的研究

目的比较不同复诊频率对隐形正畸效果的影响。方法选择200例中轻度拥挤牙颌畸形患者行非拔牙Invisalign隐形矫治,将其随机分为每月1次复诊频率和3个月1次复诊频率2组。按15个月矫治计划完成疗程后,收集患者对疗效满意度及对复诊频率反应、牙列拥挤度改善程度的相关数据行对比分析,评估不同复诊频率与隐形矫治效果之间的关系。结果1个月组和3个月组患者对隐形矫治效果的满意度VAS分值分别为8.18±2.34和7.82±1.86,经两独立样本t检验结果差别无统计学意义(P>0.05);两组间患者对隐形矫治效果的满意度VAS分值的差别也不具有统计学意义(P>0.05)。3个月组患者对复诊频率觉得合理的人数多于1个月组患者(P<0.05)。1个月组和3个月组患者牙列拥挤度改善值分别为3.18±2.34和3.82±1.86,差别无统计学意义(P>0.05)。结论患者采用每月1次或3个月1次复诊频率,对于隐形矫治效果满意度和牙列拥挤度改善无影响,患者更加倾向选择3个月1次复诊频率。     

Insignia固定矫治器定制系统在正畸治疗中的效果评价

目的 ：探讨Insignia固定矫治器定制系统在正畸治疗中的应用效果。方法 ：选择2018年3月—2019年8月大连市口腔医院收治的错畸形患者71例,应用随机数字表法分为定制组和非定制组。非定制组采用Damon Q自锁托槽治疗,定制组采用Insignia矫治系统定制个性化自锁托槽及弓丝治疗。初始校准阶段,每8周复查1次,此后每6周复查1次。比较2组的临床疗效、就诊次数、治疗计划时间、治疗持续时间、同行评估等级指数（PAR）及治疗过程中并发症和托槽情况。采用SPSS 20.0软件包对数据进行统计学分析。结果：定制组总有效率显著高于非定制组（P<0.05）;2组治疗持续时间相比,差异无统计学意义（P>0.05）;定制组就诊次数显著大于非定制组,治疗计划时间显著长于非定制组（P<0.05）;2组患者治疗后的中线、牙错位、磨牙颊侧关系、覆盖、覆和加权总分均较治疗前有改变,定制组变化更明显（P<0.05）;2组患者牙龈出血和托槽脱落率相比,差异无统计学意义（P>0.05）;定制组托槽松动率显著高于非定制组（P<0.05）。结论：与非定制系统相比,Insi...     

Efficiency and effectiveness of orthodontic treatment within United Kingdom secondary care: a service evaluation

Objectives: To evaluate the efficiency and effectiveness of Orthodontic treatment in the National Health Service (NHS) hospitals in England and to identify factors that may be predictive of the duration of Orthodontic treatment and number of patients’ visits.

Design: Retrospective service evaluation.

Setting: The orthodontic departments of two NHS hospitals.

Methods: The data were collected from the clinical notes, the hospital data base and the pre- and post-treatment study models of 70 patients who were treated with fixed appliances. The pre- and post-treatment models were assessed using the Index of Orthodontic Treatment Need (IOTN) and the Peer Assessment Rating (PAR) index.

Results: (1) 98.5% of the patients treated with fixed appliances in both hospitals were in definite need for treatment, (2) The mean percentage PAR score reduction was 81.5%, (3) The mean treatment duration was 27 months with an average of 21 appointments, (4) Factors increasing treatment duration included being a female patient, class I malocclusion, IOTN 5, extractions, prescribing headgear wear, using functional appliances or quadhelixes and increased number of missed appointments, (5) Factors reducing the treatment time were male patients, class II or class III malocclusions and an increased number of emergency appointments.

Conclusions: The hospitals demonstrated a high standard of orthodontic treatment.     

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目的    结合临床系统讨论上侧切牙过小的临床处理方法。方法    2004年1月至2008年10月对26例上侧切牙过小病例根据间隙分析,分别采取直接关闭间隙、邻面去秞、拔牙矫治等方法进行矫治。结果    通过治疗前后对比,26例病例均取得了很好的临床效果。结论    对于上侧切牙过小病例,根据其临床条件,可选择不同的拔牙或非拔牙矫治方法,均可获得健康、美观的临床效果。     

Aesthetic and functional outcomes using a multiloop edgewise archwire for camouflage orthodontic treatment of a severe Class III open bite malocclusion

Occasionally, orthodontists will be challenged to treat malocclusions and skeletal disharmonies, which by their complexity one might think that the only treatment alternative is the surgical-orthodontic approach. A male patient, aged 17 years old, was diagnosed with a skeletal Class III malocclusion, anterior open bite and negative overjet. An unpleasant profile was the patient’s ‘chief complaint’ showing interest in facial aesthetics improvement. Nevertheless, the patient and his parents strongly preferred a non-surgical treatment approach. He was treated with a multiloop edgewise archwire to facilitate uprighting and distal en-masse movement of lower teeth, correct the Class III open bite malocclusion, change the inclination of the occlusal plane and obtain the consequent morphological-functional adaptation of the mandible. The Class III malocclusion was corrected and satisfactory changes in the patient’s profile were obtained. Active treatment was completed in 2 years, and facial result remained stable at 2 years 6 months after debonding.     

4种防龋方法在固定矫治中预防牙釉质脱矿的研究

目的:比较4种防龋方法在正畸固定矫治中预防牙釉质脱矿的效果.方法:采用固定矫治器矫治的200名患者随机分为4组(n=50),分别用普通牙膏、含氟牙膏、氟保护漆和护牙素对牙釉质进行处理,定期随访,比较矫治完成后4组患者的牙釉质脱矿情况.结果:按牙齿数计算含氟牙膏、普通牙膏、氟保护漆和护牙素4组牙釉质的脱矿率分别为16.3％、21.9％、9.3％和8.5％ (x2=99.7,P=0.000001)氟保护漆和护牙素组脱矿率低于其他2组,该2组脱矿率之间的差异无统计学意义(x2=0.39,P=0.529851).结论:应用含氟制剂可以有效预防固定矫治中牙釉质脱矿的发生,护牙素和氟保护漆的效果更明显.     

The use of implant‐supported titanium prostheses for treatment of periodontally compromised patients including functional and orthodontic therapy. Report of 2 cases.

Due to its corrosion resistance and biocompatibility, titanium appears to be an alternative material for implant-supported restorations. However, due to technological difficulties, the clinical application of titanium in implant restorations has been limited. Only after recent progress in technology could the clinical use of ceramo‐metal titanium restorations be recommended. The therapeutic repertoire for treating patients with missing teeth has been significantly expanded by modem implant methods. Osseointegrated prostheses have become an integral part of restorative therapy also for periodontally compromised dentitions. This article presents 2 case reports for the use of ceramo‐metal implant‐supported titanium cast prostheses for restorative treatment of periodontally compromised patients requiring comprehensive treatment involving periodontal, functional, orthodontic and prosthodontic therapy. Favourable clinical results have been obtained and a complication‐free service of these reconstructions has been documented throughout a 12‐ to 24‐month observation period. These observations suggest that implant‐supported ceramo‐metal titanium prostheses may be a valuable part of restorative therapy for periodontally compromised dentitions in that they facilitate restorations with optimal biocompatibility. However, controlled clinical studies are needed to establish the long‐term serviceability of these titanium restorations.