单个前牙粘结桥的临床应用

单个前牙粘结桥的临床应用江苏石油局职工医院姜兵我科采用粘结桥修复单个前牙缺失和前牙间隙，临床应用２３０例，经两年的观察，效果良好。修复方法：１、在双侧基牙的邻面制备，深入牙釉本质界内约１．５ｍｍ，沟长不超过冠长的１／２为宜。２．用１９＃不锈钢丝锤扁或...     

单端金属翼板粘接桥修复右上颌侧切牙缺失1例

粘接桥磨除牙体组织少、设计灵活、不需要麻醉、美观、舒适、脱落后可重新粘接、修复成本较低,是单颗小间隙前牙缺失患者的一种较好的修复方法,笔者报道单端金属翼板粘接桥修复右上颌侧切牙缺失1例。     

光固化树脂前牙直接粘结桥

近二十年来,随着牙科材料的发展,国内外已有许多关于单个前牙缺失作直接粘结桥修复的文献报道。笔者从1989年9月到1995年9月对52例单个前牙缺失的病例(其中男性24例,女性28例,年龄为22～46岁)作了光固化树脂粘结桥修复,随访到51例,时间最长为2年,现报告如下。 病例的选择 在本科就诊病员中选择单个前牙缺失者(其中上中切牙13例,上侧切牙16例,上尖牙3例,下中切牙9例,下侧切牙9例,下尖牙2例),基牙牙体无龋坏,无明显松动,咬合关系基本正常,要求在永久修复前作过渡性修复患者共52例,其中35例为单个前牙拔除后3～5天的病例。     

金属铸造粘接桥在前牙及前磨牙美容修复(附50例报告)

本文通过金属铸造粘接桥对50例前牙、前磨牙缺失的修复,经两年临床观察,效果良好。金属铸造粘接桥以切磨牙体组织较少,异物感小,无金属显露,使患者乐于接受。在配以光固化复合树脂完成缺失牙的美容修复,使义齿自然、逼真。     

白合金板粘结桥

用高熔铸造金属背板,高分子粘接剂粘接修复牙列缺损,而形成新型修复体——粘接桥。此法修复失牙有很多优点,但也存在一些缺点,如设备造价和技术要求都比较高,制作较繁琐,在基层医院难以开展。为此,笔者用白合金片锤造金属背板制作修复前牙缺失的粘接桥,取得了一定效果,现介绍如下。     

纤维强化硬质树脂粘结桥修复前牙缺失的临床应用

目的：评价纤维加强的硬质树脂粘结桥修复前牙缺失的临床效果。方法：收集我院口腔科门诊31例单个前牙缺失患者,其中25例无需磨牙或磨切少量牙,6例磨切约0.8mm牙体组织,以达到需要的咬合间隙,对31例单个前牙缺失病例,采用玻璃纤维作支架加强的dialogR硬质树脂粘结桥进行修复。结果：经12-50个月的临床随访观察,27例复诊的病人粘结桥修复体无松动、无脱粘、折裂和过度磨耗,无继发龋,修复体边缘无明显染色,粘结界面良好,色泽稳定,美观效果好。结论：纤维强化硬质树脂粘结桥间接修复体具有良好的抗磨性能,机械强度高,色泽稳定,对基牙损伤小,无金属,就诊次数少,椅旁操作时间短,坚固,美观,是一种单个前牙缺失希望固定修复又要求少磨牙患者的首选治疗方法。     

粘接桥的临床应用及其基础研究

一、前言1973年,Rochette曾用MMA系树脂进行松动牙的暂时固定。以后,一些学者用Bis—GMA系混合树脂固定松动牙,并尝试在前牙缺失时,将塑料牙直接粘接于邻牙上。由于不牢固,又利用金属背板以加强固位,并称之为粘接桥(adhesion bridge)。经过近十年的反复尝试和研究,尤其是随着高分子粘接剂的发展,已使这种方法具有临床使用价值,并由前牙缺失的修复发展到后牙缺失的修复。二、粘接桥的应用优点:1、不切削或少切削基牙牙体组织。2、避免修复体对牙龈的刺激,预防牙     

改良牙体预备的热压铸全瓷粘接桥2年临床观察研究

目的　观察临床中下颌前牙缺失2颗以内的患者,采用改良粘接桥牙体预备后,热压铸造全瓷粘接桥临床修复效果。方法　32位患者共制作32件双翼下前牙热压铸造全瓷粘接桥,修复后3个月、6个月、1年和2年观察修复体的完整性,基牙的继发龋,边缘着色。 结果　3个月和6个月内32例患者中未出现脱落和折断病例,1年内出现1例脱落患者,2年内出现2例脱落患者,但均通过处理后再次完成粘接继续使用,所有病例在2年的观察期内均未发生继发龋和边缘着色,其颜色与邻牙相协调。整体修复成功率为90.6%。 结论　下前牙2颗以内缺失患者,采用改良粘接桥牙体预备后,热压铸造全瓷粘接桥修复,可以取得较好的临床修复效果。     

前牙马里兰桥146例的制作及临床评价

本文介绍前牙缺失应用马里兰桥修复１４６例，并按缺牙个数及年龄分组追踪观察半年到两年。结果显示：近期修复效果满意。就制作过程及临床处理进行探讨。     

马里兰桥修复缺失前牙美学效果初探

前牙缺失美容修复是口腔修复工作者经常遇到的问题之一。由于牙缺失严重影响美观,而且使患者在发音、进食等方面感到不适,从而影响正常的工作、生活。随着生活水平的不断提高,美容修复标准也不断提高。这就要求口腔修复工作者在对前牙缺失患者进行修复治疗的过程中,不但要考虑修复体的解剖学、生物力学、材料学等方面的要求,还应特别考虑到美学的要求。作者对所遇前牙缺失患者,应用马里兰桥行美容修复,并对其美学效果进行初步探讨。一、临床资料１．研究对象：１９９６年１０月～１９９７年１０月前牙缺失患者１８８例,对修复体有美…     

Quantitative evaluation of proximal tooth movement effected by wedging: a pilot study

The major purpose of this pilot study was to develop a method to accurately measure proximal tooth movement. A preliminary clinical evaluation of anterior and posterior tooth movement was performed with five patients. The patients were carefully chosen to eliminate as many variables as possible. The controlled patient criteria included periodontal health, proximal contacts, the age of the patients, and the teeth selected for anterior and posterior displacement. The small sample size dictates that additional experimentation must be performed before definitive conclusions can be drawn.     

Hemisection of a fused tooth

Fusion is a developmental anomaly which occurs due to a union of 1 or more adjacent teeth during morphodifferentiation of the dental germs. The present case report presents the hemisection of a maxillary central incisor fused with a supernumerary tooth. A 10-year-old boy was referred to clinic with the chief complaint of the presence of a large anterior tooth. Intraoral and radiographic investigations indicated fusion between the left central incisor and a supernumerary tooth. The fused tooth was separated with a diamond bur, and the supernumerary tooth was extracted. The left central incisor was restored with composite resin and the diastema between the maxillary central incisors was closed with orthodontic treatment. The left central incisor was still healthy after a follow-up examination period of 24 months. An ideal overjet and overbite relation was achieved at the end of the orthodontic treatment. Hemisection can be considered as an appropriate treatment alternative for a permanent tooth fused with a supernumerary tooth.     

Treatment of localized anterior tooth wear with a glass-fiber-reinforced composite resin: a clinical report

Developments in adhesive dentistry have provided the dental profession with new restorative materials and technology to restore esthetics and function to the worn anterior dentition. This clinical report describes treatment of localized anterior tooth wear with fiber-reinforced composite resin restorations as an alternative treatment method.     

Mandibular midline supernumerary tooth: a case report

Occurrence of a supernumerary tooth in the mandibular incisor region is uncommon. This report describes a rare case of mandibular midline supernumerary tooth causing crowding in the anterior region. The supernumerary tooth was extracted.     

Aesthetic replacement of an anterior tooth using the natural tooth as a pontic; an innovative technique

This article presents a novel technique for replacing an anterior tooth. A new modification to the clinical technique of direct fabrication of a resin-bonded bridge was employed, in which the patient’s natural tooth was used as a pontic. Treatment with this modification led to overall improved aesthetics and reduced treatment cost. The natural tooth pontic was stabilized in the extraction socket with a resin-wire splint as a provisional restoration to maintain the gingival architecture while the permanent bridge was being constructed.     

Re-attachment of anterior tooth fragment using a self-etching adhesive: a case report

AIM: The purpose of this case report is to describe the re-attachment of an anterior tooth fragment using a self-etching adhesive. BACKGROUND: Fracture of anterior teeth by trauma is a common problem in children and teenagers due to their active lifestyle. Restoration of these teeth often presents a challenge because of the large pulp in young teeth and open apical foramen depending on the age of the child. New dental adhesive materials offer an alternative solution for the treatment of some anterior tooth fractures. REPORT: A 17-year-old female patient presented for treatment of a fractured maxillary left central incisor. The clinical examination revealed the exposure of dentin, but there was no exposure of the pulp. The patient saved the tooth fragment making it available for re-attachment to the remaining tooth structure. Under local anesthesia and rubber dam isolation the tooth fragment was re-attached using a self-etching adhesive and a microhybrid composite. SUMMARY: The re-attached tooth fragment was assessed clinically, radiographically, and using photographs at one, six, 12, 24, and 36 month intervals. The tooth remained vital, and there was no change in the color of the tooth at the three-year recall.     

Supernumerary tooth in the primary molar region: a case report

Supernumerary teeth are among the most common dental anomalies affecting the primary and permanent dentition. They are usually found in the anterior maxilla and occur infrequently in the primary dentition. The purpose of this paper was to report a case diagnosed with primary supernumerary tooth in the primary second molar region. The crown and root shape of the primary supernumerary tooth resembled that of the primary first molar. On radiographic examination, the primary supernumerary tooth was followed by a permanent supernumerary successor with an unusually big crown. The primary supernumerary molar was immediately extracted to avoid interference with the development of the second premolar's tooth bud. This dental anomaly is rarely observed, as only primary supernumerary teeth in the anterior region have been reported in the dental literature.     

Evaluation of accuracy of an electric device (Neosono D-SE) for the measurement of tooth length

The study was conducted on 92 root canals selected from teeth advised for extraction to evaluate the efficacy of an electronic device (NEOSONO D-SE), Ingles method and Digital Tactile method for the measurement of working length of tooth. In 30% of anterior teeth and 30% of posterior teeth the electronic device was able to locate exact position of apical constriction of tooth, as measured after the extraction of the tooth. In 37% of anterior teeth and 13% of posterior teeth, the apical constriction was located exactly when digital tactile method was used. When Ingle's method for determining the working length was used it was successful in 30% of anterior teeth and 42% of posterior teeth. The study was also conducted to know the distance between apex of the tooth to apical foramen and distance between apical foramen and apical constriction. The findings of the study showed that the average distance between apex and apical foramen was 0.215mm and 0.289 mm in anterior and posterior teeth respectively. Whereas the distance between apical foramen and apical constriction was 0.610 mm and 0.504 mm in anterior and posterior teeth respectively.     

Immediate fixed temporization with a natural tooth crown pontic following failure of replantation

Extracted teeth can be bonded directly to adjacent teeth utilizing a prefabricated composite resin framework reinforced with polyethylene fiber as a noninvasive long-term provisional tooth replacement. This immediate provisional restoration allow for exact repositioning of the coronal part of the extracted tooth in its original intraoral three-dimensional position and thus relieves the apprehension of the patient caused by the sudden loss of an anterior tooth.     

Association between anterior tooth wear and temporomandibular disorder pain in a German population

STATEMENT OF PROBLEM: Bruxism is purported to be a risk factor for temporomandibular disorder (TMD) pain, but the association requires clarification. PURPOSE: The purpose of this study was to investigate the relation between anterior tooth wear as an indicator for bruxism and the presence of TMD pain. MATERIAL AND METHODS: Study subjects included 646 participants (age range 35 to 44 years) of a national oral health survey in Germany. Anterior tooth wear was registered for each anterior tooth with a 4-point scale (none, mild, moderate, and severe wear). Temporomandibular disorder was defined as self-reported pain in the face, jaw muscles, and/or temporomandibular joint (TMJ) during the last month, according to either the German version of the Research Diagnostic Criteria for Temporomandibular Disorders or the response to a question about pain in the masticatory muscles or the TMJ according to the Helkimo-Index. A multiple logistic regression analysis, controlling for the effects of age and gender, investigated the linear relationship between increased tooth wear and the risk of TMD pain. RESULTS: After adjusting for age and gender, an odds ratio of 1.11 (95% confidence interval: 0.7-1.8) indicated that the risk of TMD pain increased an estimated 11% per unit increase of tooth wear. There was no statistically significant or clinically relevant relationship between a linear increase of tooth wear and risk of TMD pain. CONCLUSION: Anterior tooth wear was not associated with self-reported TMD pain in 35- to 44-year-old subjects. Using anterior tooth wear as an indicator for long-term bruxing behavior, a clinically relevant dose-response relationship between this type of bruxism and TMD pain does not appear to exist.