WO2021227258A1 - 一种个性化基台 - Google Patents

一种个性化基台 Download PDF

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Publication number
WO2021227258A1
WO2021227258A1 PCT/CN2020/104573 CN2020104573W WO2021227258A1 WO 2021227258 A1 WO2021227258 A1 WO 2021227258A1 CN 2020104573 W CN2020104573 W CN 2020104573W WO 2021227258 A1 WO2021227258 A1 WO 2021227258A1
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area
end point
transgingival
personalized
height
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PCT/CN2020/104573
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English (en)
French (fr)
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曾彬
张敏洁
张潇
张锦阳
陈贤帅
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佛山市安齿生物科技有限公司
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Publication of WO2021227258A1 publication Critical patent/WO2021227258A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools

Definitions

  • the invention relates to the technical field of dental tools, in particular to a personalized abutment.
  • the abutment is very important to the function and aesthetic effect of the implant denture.
  • the shapes are single and the specifications are fixed.
  • the choice of oral cavity for different patients is quite strict, and it is difficult to take into account the patient's personalized function and aesthetic needs.
  • the restoration made of the finished abutment cannot achieve the desired function and aesthetic shape. For example, the common neck is small, and the restoration is prone to black triangles.
  • the height of the gingiva of each patient is inconsistent, and the finished abutment Even if the gingival piercing part can be ground, it cannot reach the ideal consistency with the gingiva.
  • the biggest problem that occurs is that the adhesive cannot be removed after bonding, and the finished abutment cannot fully meet the clinical needs in some cases. Therefore, the existing product abutment has certain repair function and aesthetic defects in the gingival area, and further improvement is needed.
  • the technical solution aims to provide a personalized base station to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions.
  • a personalized abutment includes a body having a buccal side, a lingual side, a mesial side, and a distal side.
  • the body includes a transgingival area, the transgingival area is columnar, and the The bottom is round, the top of the transgingival area is a hyperbolic paraboloid, the buccal end of the hyperbolic paraboloid has a height of 0.5-6.5mm, and the height of the lingual end point of the hyperbolic parabola is 1-7mm and higher than The height of the buccal end point, the mesial end point and the distal end point of the hyperbolic paraboloid have the same height and are 0 to 1 mm higher than the lingual end point.
  • the projection profile of the top of the gingival crossing area is an ellipse
  • the major axis of the ellipse is 3-7 mm
  • the difference between the major axis and the minor axis is less than or equal to 1 mm.
  • the top of the gingival area adopts a hyperbolic paraboloid design.
  • the hyperbolic paraboloid is subjected to external forces, the concave and convex parts can bear different stresses respectively to avoid the concentration of external forces at one point, so that the personalized abutment has a longer service life.
  • the drop design of the lingual end point, the buccal end point, the middle end point and the distal end point makes the contour of the top of the transgingival area similar to the anatomical shape of the natural tooth enamel and cementum boundary.
  • this design can achieve the perfect shaping of the implant cuff, so as to achieve the ideal anatomical shape restoration, which is conducive to the self-cleaning and cleaning of the prosthetic edge; on the other hand, it is conducive to the reasonable transmission and distribution of occlusal stress.
  • the top projection area of the transgingival region is larger than the bottom projection area
  • the side wall is a curved surface with a taper, and the taper is 8°-9°.
  • the tapered surface can reduce the processing difficulty of the personalized abutment and prevent the machine tool from interfering with the rest of the area during machining.
  • the body further includes an interface area connected to the bottom of the transgingival area, and the interface area is provided with an interface that is compatible with an external dental implant.
  • the interface area is used to connect with external dental implants. Therefore, the types of the interface include hexagonal connection, cross lock connection, plum blossom connection, four-corner connection, triangle connection, and Morse taper connection.
  • the body further includes a connecting platform area, the connecting platform area is fixedly connected to the top of the gingival passage area, and the central axis of the connecting platform area and the central axis of the gingival passage area have a 0-40° axis Deflection angle.
  • the connecting platform area is a cylindrical or wedge-shaped member. If the personalized abutment is installed in the posterior tooth area, the connecting table area is cylindrical with a certain draft angle, and the draft angle is 0-35°; if it is installed in the anterior tooth area, it has a wedge shape. When the implant direction and the relationship with the adjacent tissues do not fully meet the repair requirements, it can be compensated by changing the axial deflection angle of the designed connecting platform area.
  • the length of the connecting platform area is 4-8mm.
  • At least one arc-shaped micro groove is provided on the surface of the connecting platform area.
  • the existence of the arc-shaped microgrooves can increase the surface area of the connection platform, so that the crown and the abutment are more difficult to fall off after being connected by the adhesive.
  • the personalized abutment further includes a screw channel penetrating the body, and the screw channel is arranged along the central axis of the gingival area.
  • the wall thickness of the upper end of the screw channel is greater than or equal to 0.6 mm.
  • the invention has the following advantages: the personalized abutment controls the contour curve of the gingival area through the hyperbolic paraboloid to meet the personalized design of the gingival edge shape, can imitate the shape of natural teeth to a certain extent, and can realize the connection with the upper restoration without dead ends , Both beauty and health. After simulation analysis, this personalized abutment has good static mechanical properties.
  • Figure 1 is a personalized abutment suitable for posterior teeth described in Example 1;
  • Figure 2 is a three-dimensional schematic diagram of the transgingival area described in Example 1;
  • Figure 3 is a personalized abutment suitable for anterior teeth described in Example 2;
  • Fig. 4 is a full cross-sectional view at A-A in Fig. 3.
  • Embodiment 1 a personalized abutment suitable for posterior teeth, including a body having a buccal side, a lingual side, a mesial side, and a distal side, the body including a connecting table area 100, a transgingival area 200, and an interface Area 300.
  • the gingival piercing area 200 is cylindrical, the bottom 210 of the gingival piercing area 200 is circular, and the top 220 of the gingival piercing area 200 is a hyperbolic paraboloid.
  • the buccal side of the hyperbolic parabola is The height of the end point 221 is 6.5mm, the height of the lingual end point 222 of the hyperbolic paraboloid is 4mm, and the mesial end point 223 and the distal end point 224 of the hyperbolic paraboloid have the same height and are 0.5mm higher than the lingual end point. .
  • the transgingival area 200 is designed to be large in the upper part and smaller in the lower part.
  • the taper of the side wall is about 8°.
  • the projection profile of the top part 220 is an ellipse, and the major axis of the ellipse is 4mm. The minor axis is 4mm.
  • the connecting platform area 100 is cylindrical with a length of 6.5 mm, and is fixedly connected to the top of the gingival passage area 200.
  • the central axis of the connecting platform area 100 and the middle of the gingival passage area 200 The axis has an axial deflection angle of 25°.
  • the connecting platform area 100 is a cylindrical member, and the draft angle is 5°.
  • the surface of the cylindrical connecting platform area 100 is also provided with 4 arc-shaped micro-grooves 110, so that the dental crown and the personalized abutment can be bonded more stably.
  • the interface area 300 is connected to the bottom of the transgingival area 200, and the interface area 300 includes a truncated cone-shaped transition section 310 and a hexagonal interface 320.
  • the personalized abutment further includes a screw channel 400 penetrating the body, and the screw channel 400 is arranged along the central axis of the gingival penetration area 200.
  • the wall thickness of the upper end of the screw channel 400 is equal to 0.6 mm.
  • Example 2 a personalized abutment suitable for anterior teeth.
  • the gingival penetration area 200 and the interface area 300 of the personalized abutment are similar to those of the first embodiment, and the difference mainly reflects the choice of local size and the configuration of the connection platform area 100. Since the personalized abutment of this embodiment is used to replace the patient's anterior teeth with implants and crowns, its surface profile is configured as a wedge-shaped member similar to the abutment.

Abstract

一种个性化基台，包括本体；本体具有颊侧、舌侧、近中侧和远中侧，本体包括穿龈区域（200）；穿龈区域（200）呈柱状，穿龈区域（200）的底部（210）为圆形，穿龈区域（200）的顶部（220）为双曲抛物面，双曲抛物面的颊侧端点（221）的高度为0.5～6.5mm，双曲抛物面的舌侧端点（222）的高度为1～7mm且高于颊侧端点（221）的高度，双曲抛物面的近中侧端点（223）和远中侧端点（224）高度相同且比舌侧端点（222）高0～1mm。穿龈区域（200）的顶部（220）采用双曲抛物面设计，一方面可实现种植体袖口处的完美塑形，从而达到理想的解剖形态修复，有利于修复体边缘的自洁和清洁；另一方面有利于咬合应力的合理传递与分布。

Description

一种个性化基台 技术领域
本发明涉及牙科工具技术领域，特别涉及一种个性化基台。
背景技术
近年来，种植牙已成为越来越多缺失牙患者的修复选择。基台作为连接植入体和上部结构的重要修复部件，对种植义齿的功能及美学效果至关重要。目前成品基台虽然种类繁多，但形态单一，规格固定，针对不同患者口腔的选择相当严格，很难兼顾患者的个性化功能和美学需求。一方面，成品基台制作的修复体无法达到理想的功能和美观形态，比如常见的颈部小，修复体易出现黑三角区等；另一方面，每个患者牙龈高度高低不一致，成品基台即使可以研磨穿龈部分也不能达到理想中的与牙龈一致，出现的最大问题就是粘结后粘结剂无法清除，成品基台在某些情况下已不能完全满足临床需要。因此，现有的产品基台存在一定修复功能和牙龈区美学上的缺陷，需要进一步改进。
发明内容
本技术方案旨在提供一种个性化基台，以解决现有技术中所存在的一个或多个技术问题，至少提供一种有益的选择或创造条件。
一种个性化基台，包括本体，所述本体具有颊侧、舌侧、近中侧和远中侧，所述本体包括穿龈区域，所述穿龈区域呈柱状，所述穿龈区域的底部为圆形，所述穿龈区域的顶部为双曲抛物面，双曲抛物面 的颊侧端点的高度为0.5～6.5mm，所述双曲抛物面的舌侧端点的高度为1～7mm且高于颊侧端点的高度，所述双曲抛物面的近中侧端点和远中侧端点高度相同且比舌侧端点高0～1mm。
进一步，所述穿龈区域的顶部的投影轮廓为椭圆，所述椭圆的长轴为3～7mm，长轴与短轴的差值小于等于1mm。
穿龈区域的顶部采用双曲抛物面设计，双曲抛物面在承受外力作用时凹面部分和凸面部分可以分别承受不同的应力，避免外力集中于一点，使得个性化基台具有更长的使用寿命。另外，舌侧端点、颊侧端点、中侧端点和远中侧端点的落差设计使得穿龈区域顶部的轮廓与天然牙釉牙骨质界处的解剖形态相似。这样的设计一方面可实现种植体袖口处的完美塑形，从而达到理想的解剖形态修复，有利于修复体边缘的自洁和清洁；另一方面有利于咬合应力的合理传递与分布。
进一步，所述穿龈区域的顶部投影面积大于底部投影面积，其侧壁为带有锥度的曲面，所述锥度为8°～9°。锥度曲面能够降低个性化基台的加工难度，避免机加工时机床刀具会干涉到其余区域。
进一步，所述本体还包括接口区域，所述接口区域与所述穿龈区域的底部连接，所述接口区域设有与外设的牙种植体相适配的接口。所述接口区域是用于与外设的牙种植体进行连接，因此所述接口的类型包含六角连接、十字锁扣连接、梅花连接、四角连接、三角连接以及莫氏锥度连接等。
进一步，所述本体还包括连接台区域，所述连接台区域与所述穿龈区域的顶部固定连接，所述连接台区域的中轴线与所述穿龈区域的 中轴线具有0～40°轴向偏角。所述连接台区域为圆柱状或楔形状构件。如果个性化基台是安装在后牙区，则连接台区域为带有一定拔模角度的圆柱状，且拔模角度为0～35°；如果是安装在前牙区，则为楔形状。当种植体植入方向及与相邻组织的关系未完全达到修复要求时，可通过改变设计连接台区域的轴向偏角来进行补偿。
进一步，所述连接台区域的长度为4～8mm。
进一步，所述连接台区域的表面设有至少一条弧形微槽。弧形微槽的存在能够加大连接台区域的表面积，使得牙冠与基台通过粘结剂连接后更不易脱落。
进一步，所述个性化基台还包括贯穿本体的螺丝通道，所述螺丝通道沿穿龈区域的中轴线设置。所述螺丝通道的上端壁厚大于等于0.6mm。
本发明具有以下优点：本个性化基台通过双曲抛物面控制穿龈区的轮廓曲线从而满足牙龈边缘的形态个性化设计，可在一定程度上模仿天然牙形态，可实现与上部修复衔接无死角，美观与健康兼顾。经模拟分析后，本个性化基台有着良好的静力学性能。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单说明。显然，所描述的附图只是本发明的一部分实施例，而不是全部实施例，本领域的技术人员在不付出创造性劳动的前提下，还可以根据这些附图获得其他设计方案和附图。
图1是实施例1所述适用于后牙的个性化基台；
图2是实施例1中所述穿龈区域的立体示意图；
图3是实施例2所述适用于前牙的个性化基台；
图4是图3中A-A处的全剖图。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，若干的含义是一个或者多个，多个的含义是两个以上，大于、小于、超过等理解为不包括本数，以上、以下、以内等理解为包括本数。如果有描述到第一、第二只是用于区分技术特征为目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量或者隐含指明所指示的技术特征的先后关系。
本发明的描述中，除非另有明确的限定，设置、安装、连接等词语应做广义理解，所属技术领域技术人员可以结合技术方案的具体内容合理确定上述词语在本发明中的具体含义。
实施例1，适用于后牙的个性化基台，包括本体，所述本体具有颊侧、舌侧、近中侧和远中侧，所述本体包括连接台区域100、穿龈区域200和接口区域300。
如图2所示，所述穿龈区域200呈柱状，所述穿龈区域200的底部210为圆形，所述穿龈区域200的顶部220为双曲抛物面，所述双 曲抛物面的颊侧端点221的高度为6.5mm，所述双曲抛物面的舌侧端点222的高度为4mm，所述双曲抛物面的近中侧端点223和远中侧端点224高度相同且比舌侧端点高0.5mm。为适应牙种植手术相关要求，所述穿龈区域200被设计为上大下小，侧壁的锥度约为8°，其顶部220的投影轮廓为椭圆型，所述椭圆的长轴为4mm，短轴为4mm。
如图1所示，所述连接台区域100呈圆柱状，长度6.5mm，与所述穿龈区域200的顶部固定连接，所述连接台区域100的中轴线与所述穿龈区域200的中轴线具有25°轴向偏角。所述连接台区域100为圆柱状构件，且拔模角度为5°。圆柱状的连接台区域100表面还设有4条弧形微槽110，使牙冠与个性化基台粘结时能够更加稳定。
如图1所示，所述接口区域300与所述穿龈区域200的底部连接，所述接口区域300包括圆台状的过渡段310和六角形接口320。
进一步，所述个性化基台还包括贯穿本体的螺丝通道400，所述螺丝通道400沿穿龈区域200的中轴线设置。所述螺丝通道400的上端壁厚等于0.6mm。
实施例2，适用于前牙的个性化基台。如图3和4所示，该个性化基台的穿龈区域200、接口区域300均与实施例1相近似，差别主要体现局部尺寸的选择以及连接台区域100的构型。由于本实施的个性化基台是配合种植体及牙冠用于取代患者的前牙，因此其表面轮廓被配置为与基牙相近似的楔形构件。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例” 等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (9)

  1. 一种个性化基台，其特征在于：包括本体，所述本体具有颊侧、舌侧、近中侧和远中侧，所述本体包括穿龈区域，所述穿龈区域呈柱状，所述穿龈区域的底部为圆形，所述穿龈区域的顶部为双曲抛物面，所述双曲抛物面的颊侧端点的高度为0.5～6.5mm，所述双曲抛物面的舌侧端点的高度为1～7mm且高于颊侧端点的高度，所述双曲抛物面的近中侧端点和远中侧端点高度相同且比舌侧端点高0～1mm。
  2. 根据权利要求1所述的个性化基台，其特征在于：所述穿龈区域的顶部的投影轮廓为椭圆，所述椭圆的长轴为3～7mm，长轴与短轴的差值小于等于1mm。
  3. 根据权利要求2所述的个性化基台，其特征在于：所述穿龈区域的顶部投影面积大于底部投影面积，其侧壁为带有锥度的曲面，所述锥度为8°～9°。
  4. 根据权利要求1所述的个性化基台，其特征在于：所述本体还包括接口区域，所述接口区域与所述穿龈区域的底部连接，所述接口区域设有与外设的牙种植体相适配的接口。
  5. 根据权利要求1所述的个性化基台，其特征在于：所述本体还包括连接台区域，所述连接台区域与所述穿龈区域的顶部固定连接，所述连接台区域的中轴线与所述穿龈区域的中轴线具有0～40°轴向偏角。
  6. 根据权利要求5所述的个性化基台，其特征在于：所述连接台区域的长度为4～8mm。
  7. 根据权利要求5所述的个性化基台，其特征在于：所述连接台区域的表面设有至少一条弧形微槽。
  8. 根据权利要求1至7任一项所述的个性化基台，其特征在于：还包括贯穿本体的螺丝通道，所述螺丝通道沿穿龈区域的中轴线设置。
  9. 根据权利要求8所述的个性化基台，其特征在于：所述螺丝通道的上端壁厚大于等于0.6mm。
PCT/CN2020/104573 2020-05-14 2020-07-24 一种个性化基台 WO2021227258A1 (zh)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5779480A (en) * 1996-05-21 1998-07-14 Degussa Aktiengesellschaft Prosthetic abutment for dental implants
US5989029A (en) * 1997-07-08 1999-11-23 Atlantis Components, Inc. Customized dental abutments and methods of preparing or selecting the same
US20030031981A1 (en) * 2000-10-21 2003-02-13 Robert Holt Prosthetic implant
US20080057476A1 (en) * 2006-08-29 2008-03-06 Straumann Holding Ag Abutment for a dental implant
CN203153977U (zh) * 2013-03-22 2013-08-28 朴永浩 一种口腔种植义齿
CN204890221U (zh) * 2015-06-12 2015-12-23 江苏福隆数齿科技有限公司 一种牙种植体个性化基台
CN105232169A (zh) * 2015-10-16 2016-01-13 福建中科康钛材料科技有限公司 多段式种植体组件及其制备方法
CN209790051U (zh) * 2019-01-25 2019-12-17 佛山市安齿生物科技有限公司 一种牙种植修复用角度基台

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5779480A (en) * 1996-05-21 1998-07-14 Degussa Aktiengesellschaft Prosthetic abutment for dental implants
US5989029A (en) * 1997-07-08 1999-11-23 Atlantis Components, Inc. Customized dental abutments and methods of preparing or selecting the same
US20030031981A1 (en) * 2000-10-21 2003-02-13 Robert Holt Prosthetic implant
US20080057476A1 (en) * 2006-08-29 2008-03-06 Straumann Holding Ag Abutment for a dental implant
CN203153977U (zh) * 2013-03-22 2013-08-28 朴永浩 一种口腔种植义齿
CN204890221U (zh) * 2015-06-12 2015-12-23 江苏福隆数齿科技有限公司 一种牙种植体个性化基台
CN105232169A (zh) * 2015-10-16 2016-01-13 福建中科康钛材料科技有限公司 多段式种植体组件及其制备方法
CN209790051U (zh) * 2019-01-25 2019-12-17 佛山市安齿生物科技有限公司 一种牙种植修复用角度基台

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