dental crown

Conclusion The potential of the dental crown opposite the dental root middle point gradually reduced as the pH value of artificial saliva decreased .

结论牙冠部相对牙根中点的电位随着冠部人工唾液pH值的减小而负向增大。

The depths in prolongations of dental crown group were much less than those in gingivectomy group when measured postoperatively and six months after operation .

而术后及6个月复查时，牙冠延长术组的龈袋深度均明显低于牙龈切除术组。

Research on the Investment for Dental Crown and Bridge Casted by Pure Titanium

铸造纯钛冠桥专用包埋料的研制

Application of orthodontic steel wire in the fixing of longitudinal molar fracture inside dental crown

正畸钢丝冠内固定治疗磨牙纵折的应用

Biological Assessment of Sintered Titanium Alloy for Dental Crown and Bridge by Means of Slip Casting

钛合金粉浆涂塑冠桥材料的生物安全性评价

Conclusion Dental crown / bridge used titanium alloy material is of reliable was noted biological safety in dental clinical application .

结论钛合金粉浆涂塑冠桥材料用于临床具有可靠的生物安全性。

Effects of primacaine and lidocaine in preparation of the dental crown with living - pulp

阿替卡因与利多卡因在活髓牙牙体预备中的效果观察

Restorative Effects of Gingivectomy and Prolongation of Dental Crown on Deep-Seated Subgingival Teeth Fracture

劈裂牙牙龈切除术与牙冠延长术后修复效果的比较

Results : To fabricate a dental crown , the machining time of partial sintered ceramic blank was equal to the machine anticipation time .

结果：部分烧结的陶瓷块的切削性能优良，与CAD/CAM预期时间吻合。

Because of some kind of chaos caused by separated parts of segmentation , hierarchical structure helps establish the hierarchy relationships between models , separated gum and dental crown parts .

分割完的模型组织凌乱，层次化有助于建立模型的父子关系，将牙龈、牙冠等组织分开。

Conclusion : Both gingivectomy and prolongation of dental crown could shorten the depths of the gingival pocket . The clinical effect of the latter is better than that of the former .

结论：牙龈切除术与牙冠延长术应用于牙体劈裂达龈下较深部位患牙均能明显改善龈袋深度，而后者的临床疗效优于前者。

Results Among the 60 cases with failure in post crown cure , 38 cases were due to the crown'loosing or broken away , 12 cases with the broken dental crown , 10 cases with periapical periodontitis , 6 cases with broken root .

结果60例临床铸造桩核冠修复失败的病例中，32例桩核松动脱落，12例唇侧冠壁折断，10例根尖周炎，6例根折。

Typical cases were used to discuss the following problems : 1 , the clinical evaluation of the proportional discrepancies of dental crown width and discrepancies of dental quantity and osseous volume , 2 , the role of proportional discrepancies of dental crown width in etiology .

本文结合典型病例对下述问题进行了讨论：①牙冠宽度比例失调与牙量骨量不调的临床判断；

The full sintered Y-TZP had excellent mechanical properties , with bending strength of 710 MPa , fracture toughness of 4.77 MPa · m 1 / 2 . During full sintering process , the shrinkages of dental crown in different spatial dimensions were equality and uniformity .

完全烧结的陶瓷材料机械性能优良，弯曲强度达到710MPa，断裂韧性达到4.77MPa·m1/2。在完全烧结过程中，各个方向收缩均匀一致。

In the process of implant supported fixed denture prosthodontics , because of being simple to operate and more adjacent to traditional technology , adhension retention was used as the first method to bond superstructure and implant to acquire the whole good looking of dental crown and passive fitting .

在种植义齿固定修复中，粘接固位因其更接近传统修复技术，操作简便，易达到被动就位和牙冠整体美观，一般情况下被作为上部结构与种植体连接的首选方式。

The theory and methods of CAD for three-unit fixed partial dental prosthesis crown bridge are studied , which is based on the design technology of single dental prosthesis crown bridge design . An integrated route of the design of crown bridge is put forward .

本文在基于特征的义齿单冠设计技术基础上，针对三单元固定冠桥的计算机辅助设计理论与方法进行了探索，形成了一套完整的冠桥设计路线。

Current development of dental ceramics for crown and bridge restorations

牙科陶瓷冠桥修复体材料的发展现状

Research of Dental Ceramics for Crown and Bridge Restoration

陶瓷冠桥修复材料的研究进展

Technical Procedures of A New Dental Aluminous Ceramic Crown

新型牙科铝瓷全冠修复体的制作工艺

Objective : To investigate feasibility of pinhole drilled in dental cervix of crown of tooth .

目的：探索牙冠颈部建立引流孔的可行性。

After 11 extractions , several dental implants and crown fittings with bridges , he was finally able to smile confidently , and even shaved his beard which he had depended on to hide his teeth .

经过11次的拔牙以及几次牙齿植入还有齿冠搭桥之后，他终于能自信地笑了，他甚至还剃掉了用来掩盖牙齿的胡子。

Objective : Research on dental investment of titanium crown and bridge .

目的：研制口腔科铸造纯钛冠桥专用包埋料。

Development of New Investment for Casting Titanium in Prosthodontics Objective : Research on dental investment of titanium crown and bridge .

牙科铸钛用型壳材料的研究目的：研制口腔科铸造纯钛冠桥专用包埋料。

Results Three_dimensional surface reconstruction of spiral CT and SSD could clearly demonstrate the dental surface image including crown , root neck and root bifurcation in three_dimensional way , labial or palatal location , eruption orientation and relation with dentition .

结果经CT三维重建和SSD处理后，20例病例均清楚地显示了埋伏牙的牙体形态、唇腭向位置、萌出方向以及与邻牙的关系。

Dental ceramics become gradually the important materials for dental crown and bridge prostheses because their high chemical stability and good biocompatibility , wear resisting , smooth and nonporous surface , lifelike color and lustre , no ageing and no coloring , etc.

牙科陶瓷材料以其良好的化学稳定性、生物相容性、耐磨损、表面光洁、色泽逼真、不老化和不着色而成为牙科冠桥修复的重要材料。

Periodontal disease can cause gingivitis , periodontal tissue damage and alveolar bone absorption , even leading to teeth loss . Dental caries destroy odontal tissue , gradually induce dental cavity , residual crown and root base , even causes missing teeth .

牙周病会导致牙龈炎症、牙周组织破坏、牙槽骨吸收，最终可致牙齿脱落；龋病破坏牙体硬组织，可逐渐造成龋洞、残冠和残根，也可导致牙齿丧失。

Through its special metal porcelain dental materials and dental porcelain powder to help , have been sealed in a similar way dental crown on top , and then play a role in protecting root dentin .

烤瓷牙通过其特殊金属材料和牙瓷粉的帮助，已牙冠似的方式密封于牙齿之上，进而起到保护牙本质牙根的作用。