牙齿预备体参数化设计研究与实现
发布时间：2019-01-20 15:32
【摘要】：牙体预备是牙齿硬组织疾病治疗的关键环节。为开发新的牙齿预备操作模式并实现自动化预备体制备,研究了复杂形状、多约束牙齿预备体模型的计算机生成和参数化修改。首先,针对三角网格模型尺寸约束特点,通过分析模型尺寸链之间的关系,提出了预备体模型生成的参数化操作,通过此操作能够生成全瓷修复标准范围内的预备体模型;同时,利用基于历史的方法实现了预备体模型的参数化动态修改。磨牙和前磨牙各20例预备体参数化实验证明,此算法能够很好地完成预备体模型生成和参数化修改。通过第三方软件Geomagic Studio证实模型设计偏差在48μm以内,小于100μm的临床密合精度要求。为改革预备体临床操作模式,研发自动化牙体预备设备打下了坚实的基础。
[Abstract]:Tooth preparation is a key link in the treatment of dental hard tissue diseases. In order to develop a new model of tooth preparation and to automate the preparation of tooth preparation, the computer generation and parameterized modification of complex shape, multi-constrained tooth preparation model were studied. First, according to the size constraint characteristics of triangular mesh model, by analyzing the relationship between the model size chain, a parameterized operation for the generation of the preparatory body model is proposed, by which the preparatory body model within the standard range of all-ceramic restoration can be generated. At the same time, the parameterized dynamic modification of the preparatory volume model is realized by using the historical method. The parameterization experiments of 20 cases of premolar and 20 cases of premolar show that the algorithm can complete the model generation and parametric modification of the premolar model well. The third party software Geomagic Studio proves that the model design deviation is less than 48 渭 m and less than 100 渭 m. It has laid a solid foundation for reforming clinical operation mode and developing automatic dental preparation equipment.
【作者单位】： 南京航空航天大学机电学院;口腔数字化医疗技术和材料国家工程实验室 北京大学口腔医学院;
【基金】：国家科技支撑计划(2012BAI07B04) 国家自然科学基金(51205192,81271181) 南航科研基地创新基金(NJ20130015)
【分类号】：R318.6
本文编号：2412155
[Abstract]:Tooth preparation is a key link in the treatment of dental hard tissue diseases. In order to develop a new model of tooth preparation and to automate the preparation of tooth preparation, the computer generation and parameterized modification of complex shape, multi-constrained tooth preparation model were studied. First, according to the size constraint characteristics of triangular mesh model, by analyzing the relationship between the model size chain, a parameterized operation for the generation of the preparatory body model is proposed, by which the preparatory body model within the standard range of all-ceramic restoration can be generated. At the same time, the parameterized dynamic modification of the preparatory volume model is realized by using the historical method. The parameterization experiments of 20 cases of premolar and 20 cases of premolar show that the algorithm can complete the model generation and parametric modification of the premolar model well. The third party software Geomagic Studio proves that the model design deviation is less than 48 渭 m and less than 100 渭 m. It has laid a solid foundation for reforming clinical operation mode and developing automatic dental preparation equipment.
【作者单位】： 南京航空航天大学机电学院;口腔数字化医疗技术和材料国家工程实验室 北京大学口腔医学院;
【基金】：国家科技支撑计划(2012BAI07B04) 国家自然科学基金(51205192,81271181) 南航科研基地创新基金(NJ20130015)
【分类号】：R318.6
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