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 PDF

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CN110478072B
CN110478072B CN201910700224.6A CN201910700224A CN110478072B CN 110478072 B CN110478072 B CN 110478072B CN 201910700224 A CN201910700224 A CN 201910700224A CN 110478072 B CN110478072 B CN 110478072B
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ceramic
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false tooth
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CN110478072A (zh
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孙玉春
周永胜
陈虎
张磊
王勇
李榕
梁姗姗
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Peking University School of Stomatology
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00Dental prostheses; Making same
    • A61C13/0003Making bridge-work, inlays, implants or the like
    • A61C13/0004Computer-assisted sizing or machining of dental prostheses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00Dental prostheses; Making same
    • A61C13/0003Making bridge-work, inlays, implants or the like
    • A61C13/0006Production methods
    • A61C13/0019Production methods using three dimensional printing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00Dental prostheses; Making same
    • A61C13/08Artificial teeth; Making same
    • A61C13/083Porcelain or ceramic teeth
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

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  • Animal Behavior & Ethology (AREA)
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  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
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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

一种精准仿生陶瓷牙修复体的3D打印制作方法
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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CN112438816B (zh) * 2020-09-27 2021-08-31 嘉兴饶稷科技有限公司 一种3d打印种植牙的制作方法
CN112440366B (zh) * 2020-09-27 2022-04-01 嘉兴饶稷科技有限公司 一种氟斑牙种植体的3d打印制作方法
CN114246695A (zh) * 2022-01-06 2022-03-29 黑龙江程美生物科技有限责任公司 一种基于3d打印技术的仿生修复体及其制造方法
CN115500974B (zh) * 2022-11-11 2023-02-17 济南大学 一种功能梯度全瓷义齿及其增材制备方法

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CN107714210A (zh) * 2017-11-07 2018-02-23 吉林大学 一种具有分层结构的仿生义齿
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