提高粘结桥固位力临床体会

随着酸蚀技术和粘结剂不断发展,粘结桥已被公认是口腔修复中一种磨牙少、美观稳固的固定修复义齿。粘结桥固位力直接影响其应用效果和使用寿命,正确选择适应症,良好的临床备牙及粘结技术可以增强粘结桥固位力,减少脱落,对临床工作有实际指导意     

金属烤瓷粘结桥临床疗效的追踪观察

本文叙述了1983年至1988年期间为67名患者修复的73件金属烤瓮粘结桥的临床疗效追踪观察情况。随访中有4例使用期限已超过4年,仍在继续观察中。     

改进后牙对半式金属翼板粘结桥的设计与制作工艺的探讨

改进后牙对半式金属翼板粘结桥的设计与制作工艺的探讨第一军医大学珠江医院口腔科袁荷英后牙对半式金属翼板粘结桥修复个别后牙缺失是口腔修复治疗的一种新方法。１９８８年第四军医大学口腔医学院已开始应用于临床，并在全国首届口腔修复学术会议上交流。后牙对半式金属...     

22例粘结桥修复失败原因分析

马利兰粘结桥修复部分牙缺失是一种精密铸造而成的假牙,采用釉质粘接剂粘连在自体牙上,其优点:美观舒适和牙体色泽一致,无基托,就位方便,少磨牙,坚固耐用,病人乐意接受,是临床上较为理想的固定义齿修复方法,尤其适用前牙深覆盖和深覆患者.自1991年我科开展此方法修复部分牙缺失至今,笔者收集了22例粘结桥失败病例,对其失败原因作一分析.一般资料22例粘接桥修复失败均来自常州地区病员,其分类附表.附表　　　　　　　失　败　原　因失败原因例数%咬力过大941牙槽嵴粘膜损伤627操作不当523早接触29　　22例粘结桥修复失败病例中以咬力过…     

锤造无缝3／4冠粘结桥60例效果观察

作者采用锤造无缝３／４冠粘结桥修复少数牙齿缺失，经临床应用取得了满意的效果，该方法具有设备简单，操作方便，磨除牙质少，美观，舒服，价廉等优点，可望在基层医院推广。     

钉式光固化复合树脂粘结桥86例总结

<正> 近10年间,随着直接粘结技术在牙科的应用,国外已有不少关于单个前牙缺失后作直接粘结桥的报道。1985年马轩祥等,1986年贺乃尧等报道,使用国产EB复合树脂作单个前牙直接粘结桥修复。我们用钉式光固化复合树脂     

金属粘结桥在临床上的应用：附100例报告

作者对100例采用金属粘结桥修复的患者进行了复查。疗效良好者占总例数的91％,失败者占9％,义齿固位力差为失败的主要原因。本文对如何评价这种新型的修复体的临床效果及如何增加其远期修复效果等问题,进行了初步探讨。     

用暂时桥检验金属烤瓷桥的牙体预备（附32例报告）

金属烤瓷桥因为形态、颜色与自然牙更匹配,硬度高,强度大,有良好的生物相容性等优点,近年来在口腔修复中的应用越来越广泛。金属烤瓷桥的金属基底由铸造完成,精密度要求非常高,如果基牙预备有倒凹,或没有取得共同就位道,将会影响修复体质量甚至增加失败率,以下介绍一种方法,可检测金属烤瓷桥基牙预备的准确性。病例报告 本组病例共３２人,男１３人,女１９人。年龄２０－６２岁,固定桥３８组,其中前牙桥８组,后牙桥１２组,前后牙联合桥１８组。双端桥２２组,复台固定桥１６组。以上病例用本方法检验后均顺利就位,成功率１…     

粘结桥粘结失败原因分析与对策

粘结桥粘结失败原因分析与对策常州市口腔医院陈旭东粘结桥因其坚固、稳定、方便、体积小、最低限度磨削牙体，不影响美观等，在临床修复设计中不失为一种选择．粘结桥的固位因其形态所致、绝大部分依靠粘结剂的粘结力．临床所见粘结桥脱落几乎均由粘结剂松脱引起．根据对...     

New developments in craniofacial surgery research.

The recent explosion in our understanding of developmental biology and genetics has enhanced our understanding of craniofacial biology. While it is not possible to summarize all new developments in craniofacial research, this article will review three areas: fetal models and surgery for craniofacial disorders, the biology of distraction osteogenesis, and the molecular mechanisms of cranial suture fusion. Numerous models of craniofacial disorders have been described, including small, short gestation and large, long gestation. The benefits and shortcomings of each are discussed. In addition, we discuss recent studies investigating the molecular mechanisms of mandibular distraction osteogenesis. Finally, we present a review of recent advances in the understanding of mechanisms of craniosynostosis, with particular emphasis on the biology of programmed cranial suture fusion in rodents.     

Recent developments in dentin bonding

Hybridization of the dentin with resin by monomer interdiffusion has been identified as the basic bonding mechanism resulting in an intimate interlocking of the cured resin with the dentin. Today, growing efforts are made to simplify and shorten the bonding procedures, e.g. by combining the functions of primer and adhesive. Ultrastructural investigations using high-resolution optical technology provided exciting insight into the interactions of bonding systems and dentin. It became clear, that the maintenance or recovery of microporosities in the dentin is most important for optimal hybridization. This can be achieved by the moist bonding technique, which is mandatory in acetone-based systems. The observation that certain bonding systems are able to bond to dentin depleted from the demineralized collagen network raised the question of whether the collagen-resin interdiffusion zone really represents a prerequisite for successful bonding to dentin. The use of strongly acidic primer monomers introduced the concept of "self-etching" primers not only to dentin but also to enamel, which eliminates the necessity of a separate conditioning step. Clinical investigations are necessary to evaluate the potential of recently developed all-in-one products which combine the functions of conditioner, primer, and adhesive. With improvements in dentin bonding and the development of new resins that exhibit little or no shrinkage upon polymerization, even greater applications for adhesive technology will be found in dentistry.     

纳米渗漏与粘接耐久性的研究

粘接耐久性关系到粘接修复的远期临床效果,而混合层的质量对粘接耐久性至关重要。纳米渗漏可用于评价粘接剂封闭能力和混合层质量,近年来在粘接耐久性的研究中显示了重要的作用。本文就纳米渗漏的概念、形态、纳米渗漏与粘接耐久性的关系以及加强粘接耐久性的研究等方面作一综述。