CN111231325A - 一种牙列倒凹坚固固位牙体预备导板的设计制作方法 - Google Patents
一种牙列倒凹坚固固位牙体预备导板的设计制作方法 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 210000004195 gingiva Anatomy 0.000 claims abstract description 4
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
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Abstract
本发明涉及一种牙列倒凹坚固固位牙体预备导板的设计制作方法,有以下步骤:(1)三维扫描需要进行牙体预备的牙齿及邻牙;(2)用三维逆向工程软件设计牙齿预备体的三维形态;(3)根据步骤(2)牙齿预备体的三维形态,设计导板上能全程引导牙科车针运动路径的引导槽;(4)将临近牙齿边缘龈及牙冠全表面正向偏置1mm,包含倒凹区,作为导板固位部分;(5)引导槽与固位部分融合为导板整体数据;(6)将导板从牙合面的唇颊侧边界分为唇颊部分与舌腭部分;在两部分之间设计3‑4个插销固位结构,用三维打印机加工成实体。本发明能显著提升现有牙体预备导板在实际应用时的固位强度,降低就位难度并缩小导板的尺寸,利于普及应用。
Description
技术领域
本发明涉及一种牙体预备导板,具体涉及一种牙列倒凹坚固固位牙体预备导板的设计制作方法。
背景技术
口腔医师为了能够将临床牙体预备实施得更加完美,开始寻求辅助设备来增加牙体预备的精确性及合理性,主要的方法是制作牙体预备导板。牙体预备导板是获得理想的牙体预备量、避免过量磨削健康牙体组织或由于预备量不足导致修复体就位困难的重要途径之一。然而从三维数据的获取,到导板的设计,到最后导板的制造和临床实际应用,这中间的过程不可避免得会引入误差。导板最后用于牙体预备操作时的稳定度,直接影响牙体预备的精度。如果误差过大,导致术后的结果和设计方案完全不符,则增加了临床治疗风险。尤其是当导板在实际应用时的固位强度不能保证时,导板引导的误差会不可控地倍增。不但对于基层医务人员很难操作,而且不利于推广使用。
发明内容
本发明的目的是提供一种牙列倒凹坚固固位牙体预备导板的设计制作方法,能显著提升现有牙体预备导板在实际应用时的固位强度,降低就位难度并缩小导板的尺寸,提高牙体预备的精度,利于普及应用。
为了达到上述目的,本发明有如下技术方案:
本发明的一种牙列倒凹坚固固位牙体预备导板的设计制作方法,有以下步骤:
(1)三维扫描需要进行牙体预备的牙齿及邻牙;
(2)用三维逆向工程软件设计牙齿预备体的三维形态;
(3)根据步骤(2)牙齿预备体的三维形态,设计导板上能全程引导牙科车针运动路径的引导槽;
(4)将临近牙齿边缘龈及牙冠全表面正向偏置1mm,包含倒凹区,作为导板的固位部分;
(5)所述引导槽与所述固位部分融合为导板整体数据;
(6)将导板从牙合面的唇颊侧边界分为唇颊部分与舌腭部分;在两部分之间设计3-4个插销固位结构,用三维打印机加工成实体。
其中,所述插销固位结构包括插销孔和插销。
本发明的优点在于:
能显著提升现有牙体预备导板在实际应用时的固位强度,降低就位难度并缩小导板的尺寸,提高牙体预备的精度,利于普及应用。
附图说明
图1为本发明牙列倒凹结构的示意图。
图中,1、倒凹区;2、牙齿及邻牙;3、引导槽。
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。
参见图1,本发明的一种牙列倒凹坚固固位牙体预备导板的设计制作方法,有以下步骤:
(1)三维扫描需要进行牙体预备的牙齿及邻牙;
(2)用三维逆向工程软件设计牙齿预备体的三维形态;
(3)根据步骤(2)牙齿预备体的三维形态,设计导板上能全程引导牙科车针运动路径的引导槽;
(4)将临近牙齿边缘龈及牙冠全表面正向偏置1mm,包含倒凹区,作为导板的固位部分;
(5)所述引导槽与所述固位部分融合为导板整体数据;
(6)将导板从牙合面的唇颊侧边界分为唇颊部分与舌腭部分;在两部分之间设计3-4个插销固位结构,用三维打印机加工成实体。
其中,所述插销固位结构包括插销孔和插销。
三维逆向工程软件可采用但不限于Geomagic 2012,该软件是由美国Raindrop(雨滴)公司出品的逆向工程和三维检测软件。
本发明能显著提升现有牙体预备导板在实际应用时的固位强度,降低就位难度并缩小导板的尺寸,利于普及应用。
三维打印机,采用中国北京实诺泰克科技有限公司出品的口腔医用3D打印机和配套3D打印机的软件。
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 (2)
1.一种牙列倒凹坚固固位牙体预备导板的设计制作方法,其特征在于有以下步骤:
(1)三维扫描需要进行牙体预备的牙齿及邻牙;
(2)用三维逆向工程软件设计牙齿预备体的三维形态;
(3)根据步骤(2)牙齿预备体的三维形态,设计导板上能全程引导牙科车针运动路径的引导槽;
(4)将临近牙齿边缘龈及牙冠全表面正向偏置1mm,包含倒凹区,作为导板的固位部分;
(5)所述引导槽与所述固位部分融合为导板整体数据;
(6)将导板从牙合面的唇颊侧边界分为唇颊部分与舌腭部分;在两部分之间设计3-4个插销固位结构,用三维打印机加工成实体。
2.根据权利要求1所述一种牙列倒凹坚固固位牙体预备导板的设计制作方法,其特征在于:所述插销固位结构包括插销孔和插销。
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