This paper mainly focuses on the recent progress in the research methods and strategies of tooth regeneration. Several key issues in current tooth engineering are also mentioned and discussed.
本文就牙齿再生的研究手段、研究策略等方面的最新进展进行综述，并对牙齿组织工程研究当前所面临的主要问题展开讨论。
Therefor, CNC technologies are introduced into the devices for manufacture keys, and a special CNC system for key tooth milling machine is developed.
为此，本文将数控技术运用到钥匙加工设备的制造中，开发研制了钥匙铣齿机专用数控系统。
Conclusion: Cracked tooth was caused by multiple factors, early diagnosis, comprehensive treatment, and follow up in different period are key to the treatment.
结论：牙隐裂因多种因素所致，早期发现，综合治疗，定期复查是治疗的3个关键。
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