Conclusion casting post - core crown with cavity retention form is a convenient technique which can restore the residual crown and root of the short molars effectively and optimize the retention form as well 结论：洞固位形铸造桩核冠修复短磨牙残根残冠既方便，简洁，又解决修复体固位困难问题。
It has been proposed that the use of a ferrule as part of the core or artificial crown may be of benefit in reinforcing the endodontically treated teeth restored with post - and - core systems 桩核修复时,在残冠残根的断面设计箍结构,使其成为桩核或冠修复体的一部分,由此产生的箍效应可以增强修复后牙体组织的机械强度,从而受到越来越多的重视。
Dental cobalt - chromium alloy casting as cobalt - chromium alloy , my company ' s current production of cobalt chromium alloy to form a rigid cylindrical , rectangular soft for two , mainly for dental patients with tooth loss or defect repair , organize and dense , strong corrosion resistance , biocompatibility , and good liquidity , easy casting , casting and polishing a hard flexible , white aesthetic characteristics of the dental practitioner ' s the ideal dental restoration materials 牙科用钴铬铸造合金简称钴铬合金，我公司目前生产的钴铬合金外形有硬质为圆柱形、软质为长方形两种，主要用于牙病患者牙齿的缺失或者缺损的修复，具有组织致密、耐腐蚀性强、生物相容性好、流动性好、易于铸造，铸件抛光后具有质地坚硬有弹性、白亮美观的特点，是牙科医生获得牙齿修复体的理想材料。
The main contents and achievements are as follows : 1 . to develop the dental modeling software , a three - layer modeling system structure is presented including theory layer , tool layer and application layer . input models , output models and inner core models are designed for the dental modeling software in detail using the main line of data flow 本文主要研究内容和成果如下: ( 1 )设计了口腔修复体造型系统软件的总体构架,从系统研发角度,提出了软件系统结构包括:理论层、工具层和应用层三个部分,可以支持各种口腔修复应用需求。
The modeling technology of dental restoration is one of the most important and fundamental technologies of dental cad / cam system . combined with the demands of dental clinic , system structure , relevant theories and key technologies are studied deeply in the dissertation and a dental modeling prototype software is developed 口腔修复体造型是口腔cad / cam系统的基础核心技术,本文结合口腔临床医学应用实际,以口腔修复体造型技术为研究对象,以修复体造型流程为研究主线,系统研究了口腔修复体造型的相关基础理论、方法及关键技术。
There is important reference value for the clinical application of prosthodontic all - ceramic restoration to study the mechanical properties of zirconia and veneer ceramics , the influences of the manufactory process of all - ceramic restoration on the material properties and the marginal fitness of the all - ceramic restoration manufactured by computer - aided design / computer - aided manufacturing ( cad / cam ) system , getting and analyzing authentic experimental data and then drawing conclusions 目前研究主要涉及氧化锆和二层瓷的机械性能，全瓷修复体工艺制作过程对材料性能的影响，计算机辅助设计计算机辅助制作( cad / cam )系统所加工的全瓷修复体与基牙之间边缘适合性等方面，而其实验参数的获得及结论的提出，对口腔全瓷修复技术的临床应用有着重要的参考价值。
