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Ectodermal dysplasia is an hereditary condition associated with the defective development of tissues of ectodermal origin. This syndrome is classified as hidrotic, and anhidrotic. It manifests at lea...
A Large Odontogenic Keratocyst Containing A Third Molar Tooth in The Maxillary Antrum
Keratocyst Carnoy's solution Maxillary antrum Ectopic tooth
2009/6/22
Remnants of odontogenic epithelium persist in oral tissues after odontogenesis is complete, and from these remnants a variety of tumors and cysts might possibly arise (1). Odontogenic keratocysts (OKC...
Intrusive Effects of the Connecticut Intrusion Arch and the Utility Intrusion Arch
Intrusion arches Connecticut intrusion arch Utility intrusion arch Incisor intrusion
2009/6/22
The purpose of this study was to examine and compare the effects of two different arches, the Connecticut Intrusion Arch (CIA) and the Utility Intrusion Arch (UIA). A total of 20 patients (15 girls an...
3 种树脂基托试件微生物黏附的研究
BPS 注塑树脂 热凝基托树脂 微生物黏附
2014/3/19
比较BPS 注塑树脂、热凝基托树脂和不碎胶树脂表面的微生物黏附能力。方法 将BPS 注塑树脂、热凝基托树脂和不碎胶树脂试件进行微生物体外黏附实验，采用菌落形成单位计数法测定血链球菌、黏性放线菌和白色假丝酵母菌黏附量的大小。结果 血链球菌和白色假丝酵母菌黏附实验中，培养24、48、168 h后，热凝基托树脂组与BPS 注塑树脂组和不碎胶树脂组间微生物黏附量差异有统计学意义（P<0.001），BPS ...
铸造可摘支架义齿是目前牙列缺损修复中最常用的修复方法之一。Vitallium是一种用于铸造可摘支架的高钴铬钼合金，它有Vitallium、Vitallium 2000和Vitallium 2000 plus共3个级别。传统的铸造可摘支架义齿因材料性能的限制，在整体支架设计上，特别是基托设计上变化较小，且铸造卡环的回弹力较差，体积也较大，在应用上有一定缺陷。Vitallium 2000在材料性能上有...
排龈药物对体外培养人牙龈成纤维细胞的毒性比较
排龈药物 细胞毒性 人牙龈成纤维细胞
2010/8/25
目的评价6种常用的排龈药物对人牙龈成纤维细胞（HGF）毒性作用的大小，以指导临床选择最佳排龈药物。方法将6种不同体积分数的排龈药物（20%硫酸铝、5%硫酸铝、15.5%硫酸铁、13.3%硫酸铁、0.1%盐酸肾上腺素、0.01%盐酸肾上腺素）分别作用于体外培养的HGF，MTT比色法测定细胞的损伤与增殖，透射电镜观察细胞超微结构的变化。结果所有实验药物均能引起细胞的直接损伤与增殖抑制，细胞毒性由小到大...
树脂嵌体修复磨牙髓室底穿孔的形态学及微渗漏研究
树脂嵌体 髓室底穿孔 形态学 微渗漏
2010/8/23
目的研究树脂嵌体修复离体人恒磨牙髓室底穿孔的形态学及封闭效果。方法将50颗新鲜拔除的离体人恒磨牙随机分为A、B、C 3个实验组（每组15颗牙）和1个对照组（5颗牙）。制备髓室底穿孔后，A组采用树脂嵌体和AH Plus糊剂修复髓室底穿孔，B组采用树脂嵌体和玻璃离子修复髓室底穿孔，C组采用光固化复合树脂直接充填修复髓室底穿孔。对照组5颗离体牙，只开髓不制备髓室底穿孔。体视显微镜下观察髓室底穿孔修复后的...
A Comparative Study between Bond Strength of Rebonded and Recycled Orthodontic Brackets
bracket chemical recycling shear bond strength
2009/4/2
Introduction: A large number of orthodontists prefer to rebond the failed bonded brackets or use recycled brackets in some instances. The aim of this study was to compare the shear bond strength of re...
The Influence of Instrument Application Frequency on Apical Extrusion of Debris in Three Instrumentation Techniques
Canal Preparation Application Number Debris Extrusion
2009/4/2
Introduction: Various kinds of hand-held or rotary techniques are used for mechanical preparation of the canal. The purpose of this study was to assess the influence of the number of applications on...
Microleakage Assesment of Class V Composite Restorations Rebonded with Three Different MethodsMicroleakage Assesment of Class V Composite Restorations Rebonded with Three Different Methods
Composite resins dental bonding leakage
2009/4/2
Background: When composite resin polymerizes, shrinkage stresses tend to produce gaps at the tooth restoration interfaces. The aim of this study was to assess the ability of two low viscosity resin ...
A Six-year Review of the Third Molar Cases Treated in the Dental Department of Penang Hospital in Malaysia
Epidemiology impacted tooth third molars tooth extraction
2009/4/2
Background: There is a variation of management of third molars, from conservative to surgical management.The objective of the study was to determine the prevalence and the factors associated with...
Gingival retraction technology is a method which can separate free gingival margin from teeth and exposure subgingival areas. The technology of gingival retraction is used on various aspects of oral t...
比较微量泵输注雷米芬太尼复合丙泊酚用于小儿唇裂修复中的麻醉与氯胺酮复合丙泊酚对患儿血流动力学和苏醒的影响。方法 选择600 例唇裂修复术的患儿，年龄3～12 个月，美国麻醉医师协会术前评估Ⅰ～Ⅱ级，随机分为雷米芬太尼复合丙泊酚组（R组）和氯胺酮复合丙泊酚组（K组），每组300 例常规麻醉诱导后，R 组采用微量泵分别输注雷米芬太尼和丙泊酚维持麻醉，K 组采用微量泵分别静脉输注氯胺酮和丙泊酚维持麻醉，...
义齿表面微纹理对颜色影响的基础研究
天然牙 颜色 微纹理
2014/3/21
天然牙表面纹理的不同会引起光线反射和折射的改变，从而导致牙齿的色彩发生变化。本文旨在通过简述天然牙表面微纹理的特征和颜色的基本理论，总结现阶段各学科中物体不同表面粗糙度对光反射和散射系数产生的影响，导致物体表面亮度等颜色视觉的差异以及相关表面粗糙度和颜色关系的研究成果，并归纳口腔医学领域中烤瓷修复体表面粗糙度对不同种类和色号的义齿在明度、色相和彩度等颜色参数以及颜色稳定性等方面的影响，探讨烤瓷抛光...