CN110478072B - 一种精准仿生陶瓷牙修复体的3d打印制作方法 - Google Patents
一种精准仿生陶瓷牙修复体的3d打印制作方法 Download PDFInfo
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Abstract
本发明涉及一种精准仿生陶瓷牙修复体的3D打印制作方法,有以下步骤:1)用口内三维扫描仪扫描待修复牙齿及邻牙,获取三维表面形态数据和颜色纹理数据;2)用CAD软件设计义齿的强度、颜色和半透度的三维分层结构;3)将义齿咬合面和近远中邻面接触区设计为内外两层,表层厚度为0.3‑0.6mm,内层厚度为0.4‑0.7mm;4)表层直接承受咀嚼压力与磨耗,材料为仿生强度牙科陶瓷材料;5)内层与义齿其他区域的全程均为高强度陶瓷;6)用3D打印机打印成形。本发明能适用于牙科仿生陶瓷义齿的结构设计与制作,可兼顾与对颌及邻近天然牙齿同步生理磨耗、保护牙根与种植体,以及修复体的整体抗折裂性能。
Description
技术领域
本发明涉及一种仿生陶瓷牙修复体,具体涉及一种精准仿生陶瓷牙修复体的3D打印制作方法。
背景技术
随着口腔医用数字化技术的发展,计算机辅助设计和3D打印组合技术已经可以实现多种口腔医用制品的数字制造。但在义齿的设计制造方面,存在设计结构不精准,力学性能未能达到仿生要求;易导致对颌及邻近天然牙齿的过渡磨耗,天然牙根或种植体应力集中,或修复体整体抗折裂性能不足的问题和矛盾。
发明内容
本发明的目的是提供一种精准仿生陶瓷牙修复体的3D打印制作方法,能适用于牙科仿生陶瓷义齿的结构设计与制作,可兼顾与对颌及邻近天然牙齿同步生理磨耗、保护牙根与种植体,以及修复体的整体抗折裂性能。
为了达到上述目的,本发明有如下技术方案:
本发明的一种精准仿生陶瓷牙修复体的3D打印制作方法,有以下步骤:
1)用口内三维扫描仪扫描待修复牙齿及邻牙,获取三维表面形态数据和颜色纹理数据;
2)用CAD软件设计义齿的强度、颜色和半透度的三维分层结构;
3)将义齿咬合面和近远中邻面接触区设计为内外两层,表层厚度为0.3-0.6mm,内层厚度为0.4-0.7mm;
4)表层直接承受咀嚼压力与磨耗,材料为仿生强度牙科陶瓷材料,要求其硬度、耐磨度与天然牙釉质相近;
5)内层与义齿其他区域全层为高强度陶瓷;
6)用3D打印机打印成形。
其中,所述仿生强度牙科陶瓷材料包括二硅酸锂陶瓷、5%mol氧化钇含量的二氧化锆陶瓷;所述高强度陶瓷包括3%mol-4%mol氧化钇含量的二氧化锆陶瓷。
本发明的优点在于:能适用于牙科仿生陶瓷义齿的结构设计与制作,可兼顾与对颌及邻近天然牙齿同步生理磨耗、保护牙根与种植体,以及修复体的整体抗折裂性能。
具体实施方式
以下实施例用于说明本发明,但不用来限制本发明的范围。
本发明的一种精准仿生陶瓷牙修复体的3D打印制作方法,有以下步骤:
1)用口内三维扫描仪扫描待修复牙齿及邻牙,获取三维表面形态数据和颜色纹理数据;
2)用CAD软件设计义齿的强度、颜色和半透度的三维分层结构;
3)将义齿咬合面和近远中邻面接触区设计为内外两层,表层厚度为0.3-0.6mm,内层厚度为0.4-0.7mm;
4)表层直接承受咀嚼压力与磨耗,材料为仿生强度牙科陶瓷材料,要求其硬度、耐磨度与天然牙釉质相近;
5)内层与义齿其他区域为高强度陶瓷;
6)用3D打印机打印成形。
所述仿生强度牙科陶瓷材料包括二硅酸锂陶瓷、5%mol氧化钇含量的二氧化锆陶瓷;所述高强度陶瓷包括3%mol-4%mol氧化钇含量的二氧化锆陶瓷。
如上所述,便可较为充分的实现本发明。以上所述仅为本发明的较为合理的实施实例,本发明的保护范围包括但并不局限于此,本领域的技术人员任何基于本发明技术方案上非实质性变性变更均包括在本发明包括范围之内。
Claims (1)
1.一种精准仿生陶瓷牙修复体的3D打印制作方法,其特征在于有以下步骤:
1)用口内三维扫描仪扫描待修复牙齿及邻牙,获取三维表面形态数据和颜色纹理数据;
2)用CAD软件设计义齿的强度、颜色和半透度的三维分层结构;
3)将义齿咬合面和近远中邻面接触区设计为内外两层,表层厚度为0.3-0.6mm,内层厚度为0.4-0.7mm;
4)表层直接承受咀嚼压力与磨耗,材料为仿生强度牙科陶瓷材料,要求其硬度、耐磨度与天然牙釉质相近;
5)内层与义齿其他区域全层均为高强度陶瓷;
6)用3D打印机打印成形;
所述仿生强度牙科陶瓷材料包括二硅酸锂陶瓷、5%mol氧化钇含量的二氧化锆陶瓷;所述高强度陶瓷包括3%mol-4%mol氧化钇含量的二氧化锆陶瓷。
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