Methods Among 27 cases who perform cosmetic prosthesis for anterior tooth after crown lengthening, there are 16 cases with post crown, 11 cases with comprehensive prosthesis.

The bigger is the wallop, the longer is the effect time of crown remover to tooth and crown, vice versa.

冲击力越大，拆冠器对实验全冠、基牙作用时间就越长，反之则越短。

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RESULTS; Among the 84 cases treated with CO2 laser, complete eruption of tooth crown was observed in 80 cases, partial eruption in 4, bleeding after operation in 4, swelling and pain following treatment were not observed.

结果：CO2激光治疗组84例，牙冠充分暴露80例，部分暴露4例，术后出血4例，无术后肿胀及疼痛；

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Results: The color distribution space of the 3 kinds of resin were smaller than that of Chinese tooth crown, but the centers were almost same. There were significant color distribution difference between imported resins and Chinese tooth crown.

结果：3种中任何一种进口光敏树脂之色度分布范围均小于但位于天然牙冠色范围之中，即不能达到与天然牙色度范围的完全重合，并且在分布上各有特点。

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The width of the tooth crown, the size of the dental arch and dental base bone were measured with a vernier. The measurments were statistically analysed.

方法：56副正常恒牙模型，用游标卡尺及特制工具测量牙冠宽度、牙弓大小和指数，基骨宽度、长度、腭盖高度，并进行统计学处理并对其特征进行了分析。

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Conclusion The constraint design method of tooth crown based on DFFD is feasible, which is an approach to further researches on the design of the tooth crown bridge.

结论：在患者备牙模型上，按照患者口腔约束条件，利用DFFD变形设计方法对牙冠的设计是可行的，同时也为外冠桥牙冠数字化设计的研究奠定了基础。

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Methods: The color of3 kinds of imported composite resin and that of Chinese tooth crown of normal individuals was measured based on standard background with spectrum colorimeter.

方法：选取3种临床上常用之进口光敏树脂为实验材料，在标准背景下以分光光度计测定其色度值后，与天然牙冠色度范围进行比较，分析其色度分布差异。

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Conclusion Restoring posterior tooth crown longitudinal dehiscence is one of the effective methods to keep the sick tooth.

结论：用全冠修复后牙牙冠纵裂是保存纵裂牙齿的有效方法之一。

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CONCLUSION: The marked clinic effect is required for adhering fractured anterior tooth crown in this new method.

结论：使用这种新方法对上前牙牙冠折断的再粘接取得了明显临床效果。

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The deformation design is finished. ( 3) The construction technology of the standard tooth crown database is researched.

研究了标准冠数据库的建库技术。

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The restoration and treatment of posterior tooth crown longitudinal dehiscence

后牙牙冠纵裂的修复治疗

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Clinical usage for restoration of traumatic anterior tooth crown using flowable resin in children

流动复合树脂在儿童前牙外伤牙冠断端再接术中的临床应用

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3-D reconstruction of standard tooth crown and related shape deformation

标准牙冠计算机三维图形的重建及其空间几何变换的研究

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The color comparison between 3 kinds of imported composite resin and tooth crown of Chinese

三种进口光敏树脂与中国人牙冠色度学比较

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Clinical analysis for Instant cosmetic restoration of traumatic anterior tooth crown

前牙冠折即刻美容修复的临床观察

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Consistency in large topologies makes things simpler.

大型拓扑中的一致性使事情变得较为简单。

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Novel topologies and modulation strategies concerning multilevel converters are emerging continuously.

围绕多电平变换器，新型电路拓扑及相关调制策略层出不穷。

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We have already discussed this option in the section Key Topologies for WebSphere Process Server Clustering.

我们已经在“WebSphere Process Server集群的关键拓朴”部分讨论了此选项。

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This means that it's now much easier to build and understand complex deployment topologies.

这意味着现在构建和理解复杂的部署拓扑要更加地容易。

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Define service and application deployment topologies.

定义服务和应用程序部署拓扑。

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The SIBus can be used to construct many ESB topologies.

SIBus可以用于构造多种ESB拓扑。

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