WO2018119666A1 - 金属-陶瓷口腔种植体 - Google Patents

金属-陶瓷口腔种植体 Download PDF

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Publication number
WO2018119666A1
WO2018119666A1 PCT/CN2016/112378 CN2016112378W WO2018119666A1 WO 2018119666 A1 WO2018119666 A1 WO 2018119666A1 CN 2016112378 W CN2016112378 W CN 2016112378W WO 2018119666 A1 WO2018119666 A1 WO 2018119666A1
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section
metal
ceramic
implant
repairing
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PCT/CN2016/112378
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English (en)
French (fr)
Inventor
汪昆
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中国人民解放军第三军医大学第一附属医院
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Application filed by 中国人民解放军第三军医大学第一附属医院 filed Critical 中国人民解放军第三军医大学第一附属医院
Priority to PCT/CN2016/112378 priority Critical patent/WO2018119666A1/zh
Publication of WO2018119666A1 publication Critical patent/WO2018119666A1/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 present invention relates to the field of medical supplies, and in particular to a metal-ceramic oral implant.
  • the aesthetic effect of anterior toothless implant treatment is one of the most important indicators for evaluating the therapeutic effect.
  • the occurrence of aesthetic defects means treatment failure to some extent.
  • most dental implants are made of titanium and titanium alloys, and the implants are metallic black. Titanium implants are prone to aesthetic problems after implantation. When the bone tissue around the implant is absorbed and the tendon tissue is retracted, the neck of the titanium implant will be exposed in black bands. In addition, when the patient's tendon tissue is thin, it can be seen through the tendon tissue. It has a black metal neck. At present, there is no effective way to solve the above-mentioned aesthetic complications. In recent years, with the improvement of the performance of ceramic materials, zirconium oxide and alumina ceramic dental implants have appeared one after another.
  • the biggest advantage of ceramic implants is that their color is similar to that of natural teeth, which can effectively overcome the aesthetic problems of metallic color exposure of titanium implant neck.
  • the strength of ceramic itself is low, and surface treatment such as machining and acid blasting will also reduce the strength of ceramic implants. These factors determine the mechanical strength of ceramic implants is worse than titanium planting. Body, prone to mechanical complications such as fracture, its clinical application is limited.
  • the technical problem to be solved by the present invention is to provide an oral implant which can effectively overcome the low strength of a ceramic implant, that is, a metal-ceramic oral implant.
  • This implant has the aesthetic advantages of ceramic implants on the one hand, and the good strength of metal implants on the other hand, which is the unity of aesthetics and strength.
  • a metal-ceramic oral implant including a ceramic part, a metal reinforcing part and a dental crown, the ceramic part including a repairing section, a piercing section and a taper section, dental implants
  • the crown is fixedly connected to the repairing section, and the metal reinforcing portion is covered outside the taper section and the two are fixedly connected.
  • the metal-ceramic oral implant adopting the technical scheme of the invention, the ceramic part is used as the main part of the dental implant, the implant crown and the repairing section are bonded and fixed, the ceramic part has good biocompatibility, and the bone tissue can be combined with the bone tissue. Achieve better osseointegration, and its color is similar to the color of natural teeth, which can effectively overcome the titanium implant neck gold.
  • the aesthetic problem of color exposure after the bone tissue is implanted in the present invention, the edge of the implant crown will be located below the rim, ensuring an aesthetic effect.
  • the taper section means that the one end dimension is larger than the other end dimension, and the metal reinforcing portion functions to strengthen the strength of the ceramic portion.
  • the present invention overcomes the aesthetic problem of metallic color exposure of the titanium implant neck.
  • the ceramic portion of the present invention is not subjected to surface threading and processing, its strength is high, and it is possible to avoid affecting the mechanical strength of the implant and avoid the occurrence of fatigue fracture of the implant.
  • the repairing section and the taper section are both in the shape of a truncated cone, one end of the threading section is connected with the large diameter end of the repairing section, and the other end of the threading section is connected with the small diameter end of the taper section;
  • the piercing section is cylindrical
  • the taper segment and the metal reinforcement portion are in a clearance fit.
  • the repair section takes up the implant crown, and the repair section passes through the ankle. It is also the part of the bone tissue that is absorbed around the implant, the tendon tissue is retracted, and exposed to the outside.
  • the taper section is connected to the metal reinforcing portion by a clearance fit.
  • the taper section is a truncated cone having a small upper end and a large lower end.
  • the inner cavity of the metal reinforcing portion that cooperates with the trough is a truncated cone having a small upper end and a large lower end.
  • the first and the tapered surfaces are coupled to each other. The connection is tighter and firmer; the second force point is dispersed to avoid damage to the ceramic part.
  • one side of the repairing section is provided with an anti-rotation surface. Avoid the rotation of the implant crown and the repair section, and the anti-rotation surface setting makes the connection stronger.
  • the outer wall of the metal reinforcing portion is a rough surface subjected to acid etching and sandblasting, and the outer wall is provided with a thread.
  • the thread design can increase the contact area between the implant and the bone tissue, and can effectively disperse the occlusal stress.
  • the surface roughening treatment is beneficial to the healing speed of the interface bone tissue and increases the bone binding rate between the implant and the bone interface.
  • the joint of the repairing section and the piercing section forms a repairing shoulder, and the lower end of the implanting crown ends at the repairing shoulder.
  • the repairing shoulder is the joint between the repairing section and the wearing section.
  • the diameter of the wearing section is larger than the diameter of the repairing section.
  • the diameter of the bottom surface of the repairing section is 1 F3.9 mm to 5.2 mm, the height is 3.5 to 6.0 mm, and the taper angle is 4° to 8°;
  • the height of the piercing section is 3.0 to 4.0 mm, and the diameter d 2 is 4.7 mm to 6 mm;
  • the small diameter end of the taper section has a diameter of 3 to 4.6 mm, a taper angle of 2 to 4 degrees, and a height of 5.0 to 7.0 mm.
  • the above parameters have the best aesthetic effect of the dental implant and the highest strength of the ceramic part.
  • the thread of the outer wall of the metal reinforcing portion has a pitch of 0.8 to 1.25 mm, a triangular cross section of the thread, and a thread height of 0.2 mm.
  • the width of the repairing shoulder is 0.4 mm. It is most suitable to repair the width of the shoulders, which is good for grinding and making the crown again.
  • the angle is 2 ⁇ 4°; the thickness of the bottom wall of the metal reinforcement is 1.0mm, and the minimum thickness of the side wall of the metal reinforcement is horizontally at the bottom of the taper section of the ceramic part, and the thickness is at least 0.5mm.
  • the outer cylinder is convenient for planting rafts.
  • the metal reinforcement is implanted into the bone tissue, and the degree of bonding is higher; the taper of the inner cavity is consistent with the taper section, and the gap fit is ensured, and the thickness of the bottom wall ensures sufficient strength of the metal reinforcement.
  • the metal reinforcing portion is welded by the left portion and the right portion. Easy to process.
  • FIG. 1 is a schematic view of a first embodiment of a metal-ceramic oral implant of the present invention
  • FIG. 2 is a front view of a ceramic part according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic view showing a state of implantation in an alveolar bone according to an embodiment of the present invention
  • the metal-ceramic oral implant of the present invention is in the first embodiment to the third embodiment, and the dimensional parameters of the repairing section, the piercing section, the taper section and the metal reinforcing portion are as shown in Table 1:
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the height of the piercing section 12 is 3.0 mm, the diameter is 4.7 mm, and one of the piercing sections 12 is The end is connected with the large diameter end of the repairing section 11, and the joint of the repairing section 11 and the piercing section 12 forms a repairing shoulder 4, the width of the repairing shoulder 4 is 0.4 mm, and the lower end of the implanting crown 3 is located at the repairing shoulder 4
  • the other end of the piercing section 12 is connected to the small-diameter end of the taper section 13, the piercing section 12 is cylindrical, the taper section 13 is a truncated cone shape, and the diameter of the small-diameter end of the taper section 13 is 3.4 mm, the taper is 2°, and the height is 5.0mm, and the taper section 13 is in a clearance fit with the metal reinforcement 2, the implant crown 3 is fixedly connected to the repair section 11,
  • the inner cavity is in the shape of a truncated cone, and the taper of the truncated cone is 2°; the thickness of the bottom wall of the metal reinforcing portion 2 is 1.0 mm, and the outer wall of the metal reinforcing portion 2 is a rough surface subjected to acid etching and blasting, and the outer wall is provided with a thread and a pitch. It is 0.8 mm, the thread cross section is triangular, the thread height is 0.2 mm, and the metal reinforcement 2 is wrapped around the taper section 13 and the two are fixedly connected.
  • the sacral region of the edentulous region is cut, the mucoperiosteal flap is turned up, and the small ball drill is used for positioning, and then the implant is prepared with the bone drill step by step until the diameter thereof is the same as the diameter of the metal reinforcing portion 2.
  • the metal-ceramic oral implant of the embodiment of the invention is screwed into the implant socket, the depth of the implant nest and the depth of the implant implant are determined: the repair shoulder 4 of the ceramic part 1 is higher after implantation
  • the surface of the bone 6 is 2.0 mm (this depth of implantation is determined by reference to the biological width of the soft tissue surrounding the implant).
  • the height of the alveolar crest (the surface of the bone 6) to the base of the sulcus is constant, about 2.0 mm, and is called the biological width.
  • the crown of this biometric width is the free sulcus (approximately l.Omm in height), and the aesthetic effect of the restoration can be achieved by placing the crown edge in the sulcus.
  • the repairing shoulder 4 is 2.0 mm higher than the surface of the bone 6 , which means that the shoulder of the repairing shoulder 4 and the crown of the implant 3 are located in the free sulcus (underarm).
  • the depth of implantation can be increased accordingly, that is, the distance between the repairing shoulders 4 of the ceramic portion 1 and the surface of the bone 6 after implantation is less than 2.0 mm.
  • the gum is closed by suturing 5, and the operation is over.
  • the initial stability of the implant is high, it is conceivable to make a temporary crown, and adjust the shape of the temporary crown with reference to the occlusal relationship with the jaw tooth, so that the Linyi crown is in a proper low occlusion state, and the implant is avoided.
  • the large bite force helps the bone 6 to heal.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

一种金属-陶瓷口腔种植体，包括陶瓷部(1)、金属加强部(2)和种植牙冠(3)。陶瓷部为一体式结构，包括修复段(11)、穿龈段(12)、锥度段(13)。金属加强部(2)由对称的两部分焊接而成，包绕于陶瓷部(1)锥度段的外面，具有限制陶瓷部(1)发生冠方、根方、旋转等位移的作用，以及增强整个种植体强度的作用。种植牙冠(3)固位于陶瓷部(1)的修复段。该金属-陶瓷口腔种植体能有效克服陶瓷种植体强度低的问题，除具有陶瓷种植体的美学优点，还兼具金属种植体的良好强度，是美学与强度的统一体。

Description

金属-陶瓷口腔种植体
技术领域
[0001] 本发明涉及医疗用品领域， 具体涉及一种金属 -陶瓷口腔种植体。
背景技术
[0002] 前牙缺失种植治疗的美学效果是评价治疗效果的最重要指标之一， 出现美学缺 陷在一定程度上意味着治疗失败。 目前， 绝大多数口腔种植体由钛、 钛合金加 工而成， 种植体呈金属黑色。 钛金属种植体植入后易发生美学问题， 当种植体 周围骨组织吸收、 龈组织退缩吋， 钛种植体颈部会呈黑色带状外露； 另外当患 者龈组织菲薄吋， 透过龈组织可见其下黑色金属颈部。 目前， 尚没有能有效解 决上述美学并发症的方法。 近年来， 随着陶瓷材料性能的提升， 陆续出现了氧 化锆、 氧化铝陶瓷口腔种植体。 实验证实： 陶瓷种植体具有良好的生物相容性 ， 能与骨组织实现较好的骨结合。 陶瓷种植体的最大优点是： 其颜色与自然牙 颜色相近， 可有效克服钛种植体颈部金属色外露的美学问题。 然而， 与传统钛 材相比， 陶瓷本身的强度偏低， 机械加工、 酸蚀喷砂等表面处理也会降低陶瓷 种植体的强度， 这些因素决定了陶瓷种植体的机械强度差于钛材种植体， 易于 发生折断等力学并发症， 其临床应用受到一定的限制。
[0003] 发明内容
[0004] 本发明专利拟解决的技术问题是提供一种能有效克服陶瓷种植体强度低的口腔 种植体， 即金属 -陶瓷口腔种植体。 此种植体一方面具有陶瓷种植体的美学优点 ， 另一方面又兼金属种植体的良好强度， 是美学与强度的统一体。
[0005] 为了解决上述技术问题， 本发明提供如下技术方案： 金属 -陶瓷口腔种植体， 包括陶瓷部、 金属加强部和种植牙冠， 陶瓷部包括修复段、 穿龈段和锥度段， 种植牙冠与修复段固定连接， 金属加强部包覆于锥度段外且两者固定连接。
[0006] 采用本发明技术方案的金属 -陶瓷口腔种植体， 陶瓷部作为牙种植体的主体部 分， 种植牙冠与修复段粘结固定， 陶瓷部具有良好的生物相容性， 能与骨组织 实现较好的骨结合， 且其颜色与自然牙颜色相近， 可有效克服钛种植体颈部金 属色外露的美学问题； 在本发明植入骨组织后， 种植牙冠的边缘将位于龈缘下 方， 保证了美学效果。 锥度段指的是一端尺寸大于另一端尺寸， 金属加强部起 加强陶瓷部强度的作用。
[0007] 本发明的优点如下：
[0008] 第一， 本发明克服了钛种植体颈部金属色外露的美学问题。 第二， 由于本发明 的陶瓷部并未进行表面螺纹加工和处理， 因此， 其强度高， 避免影响种植体的 机械强度， 避免种植体疲劳折断等现象的发生。
[0009] 进一步， 所述的修复段和锥度段均呈圆台状， 穿龈段的一端与修复段的大径端 连接， 穿龈段的另一端与锥度段的小径端连接；
[0010] 所述的穿龈段呈圆柱状；
[0011] 所述的锥度段与金属加强部为间隙配合。
[0012] 修复段起承接种植牙冠， 修复段下接穿龈部， 也是当种植体周围骨组织吸收、 龈组织退缩吋， 裸露至外部的部分。 锥度段， 与金属加强部间隙配合连接， 锥 度段为上端小、 下端大的圆台状， 与其配合的金属加强部的内腔为上端小、 下 端大的圆台状， 第一， 锥面配合连接， 连接更紧密， 更牢固； 第二受力点分散 ， 避免损坏陶瓷部。
[0013] 进一步， 所述的修复段一侧设有抗旋转面。 避免种植牙冠与修复段产生旋转， 抗旋转面的设置使得连接更牢固。
[0014] 进一步， 所述的金属加强部的外壁是经过酸蚀喷砂处理的粗糙表面， 且外壁设 有螺纹。 螺纹设计可以增加种植体与骨组织的接触面积， 并能有效分散咬合应 力， 表面粗糙处理有利于界面骨组织的愈合速度， 增加种植体与骨界面的骨结 合率。
[0015] 进一步， 所述的修复段和穿龈段的连接处形成修复肩台， 所述的种植牙冠的下 端止于修复肩台处。 修复肩台即为修复段与穿龈段的连接处， 穿龈段的直径大 于修复段的直径， 在植入牙种植体后， 修复肩台高出骨表面 2.0mm， 这样种植牙 冠的边缘将位于龈缘下方， 保证了美学效果， 当种植体周围骨组织发生吸收、 龈组织向根方退缩吋， 冠边缘会愈来愈接近龈缘、 甚至高出龈缘， 这吋， 种植 冠的美学效果会受到负面影响。 此吋， 可使用牙科车针打磨修复肩台， 使其位 置下移， 并重新位于龈下， 再次制作种植牙冠， 可获得理想的美观效果。
[0016] 进一步， 所述的修复段底面直径(1 F3.9mm~5.2mm， 高度为 3.5〜6.0mm， 锥 度角为 4°〜8°；
[0017] 所述的穿龈段的高度为 3.0〜4.0mm， 直径 d 2=4.7mm〜6mm;
[0018] 所述的锥度段小径端的直径 3〜4.6mm， 锥度角为 2~4°， 高度为 5.0〜7.0mm。
[0019] 据临床设计， 以上参数吋种植牙的美学效果最佳且陶瓷部的强度最高。
[0020] 进一步， 所述的金属加强部外壁的螺纹， 其螺距为 0.8〜1.25mm之间， 螺纹截 面呈三角形， 螺纹齿高 0.2mm。
[0021] 进一步， 修复肩台的宽度为 0.4mm。 修复肩台的宽度最合适， 利于打磨再次制 作种植牙冠。
[0022] 进一步， 所述的金属加强部外壁呈圆柱形， 外壁直径(1 3与穿龈段直径 d 2相同， d 3= d 2=4.7〜6mm， 内腔呈圆台状， 且圆台的锥度角为 2~4°； 金属加强部的底 壁厚度为 1.0mm， 金属加强部侧壁的最小厚度位于陶瓷部的锥度段底面水平， 此 厚度最小为 0.5mm。 外部圆柱体便于在种植吋， 将金属加强部植入骨组织， 其结 合度更高； 内腔的锥度与锥度段一致， 保证两者间隙配合连接， 底壁厚度保证 金属加强部足够的强度。
[0023] 进一步， 所述的金属加强部由左部和右部焊接而成。 加工方便。
技术问题
问题的解决方案
发明的有益效果
对附图的简要说明
附图说明
[0024] 图 1为本发明金属-陶瓷口腔种植体实施例一示意图；
[0025] 图 2为本发明实施例一中的陶瓷部主视示意图；
[0026] 图 3为本发明实施例一植入牙槽骨内的状态示意图；
[0027] 其中： 陶瓷部 1、 金属加强部 2、 种植牙冠 3、 修复肩台 4、 牙龈 5、 骨 6、 修复段 11、 穿龈段 12、 锥度段 13。 具体实施方式
[0028] 本发明金属-陶瓷口腔种植体实施例一〜实施例三， 其修复段、 穿龈段、 锥度 段和金属加强部的尺寸参数如表 1所示：
[0029] 表 1
[0030] [数]
Figure imgf000006_0001
[0031] 现以实施例一举例， 具体说明本发明金属-陶瓷口腔种植体的结构及其临床操 作方法。
[0032] 实施例一：
[0033] 如图 1、 图 2和图 3所示， 本发明金属 -陶瓷口腔种植体， 包括陶瓷部 1、 金属加 强部 2和种植牙冠 3， 陶瓷部 1包括修复段 11、 穿龈段 12和锥度段 13， 修复段 11和 锥度段 13均呈圆台状， 修复段 11底面直径(1 1=3.91^^ 高度为 3.5mm， 锥度为 4° ， 修复段 11一侧设有抗旋转面， 抗旋转面即为一平面， 当然， 若抗旋转面为设 置于一侧的凸起也可， 穿龈段 12的高度为 3.0mm， 直径为 4.7mm， 穿龈段 12的一 端与修复段 11的大径端连接， 且修复段 11和穿龈段 12的连接处形成修复肩台 4， 修复肩台 4的宽度为 0.4mm， 种植牙冠 3的下端位于修复肩台 4处， 穿龈段 12的另 一端与锥度段 13的小径端连接， 穿龈段 12呈圆柱状， 锥度段 13为圆台状， 锥度 段 13小径端的直径为 3.4mm， 锥度为 2°， 高度为 5.0mm， 且锥度段 13与金属加强 部 2为间隙配合， 种植牙冠 3与修复段 11固定连接， 金属加强部 2外壁呈圆柱形， 金属加强部 2由左部和右部焊接而成， 内腔呈圆台状， 且圆台的锥度为 2° ; 金属 加强部 2的底壁厚度为 1.0mm， 金属加强部 2的外壁是经过酸蚀喷砂处理的粗糙表 面， 且外壁设有螺纹， 螺距为 0.8mm， 螺纹截面呈三角形， 螺纹齿高 0.2mm， 金 属加强部 2包覆于锥度段 13外且两者固定连接。
[0034] 在临床操作吋， 切幵缺牙区龈组织， 翻起黏骨膜瓣， 用小球钻定位， 然后用骨 钻逐级行种植窝预备， 直至其直径与金属加强部 2的直径一致， 使用种植体连接 扳手， 将本发明实施例的金属-陶瓷口腔种植体旋入种植窝， 种植窝深度制备和 植体植入深度的确定： 植入后陶瓷部 1的修复肩台 4高出骨 6表面 2.0mm (此植入 深度的确定， 参考了种植体周围软组织的生物学宽度） 。 研究表明， 牙槽嵴顶 (骨 6表面） 至龈沟底的高度是恒定的， 约为 2.0mm， 被称为生物学宽度。 此生 物学宽度的冠方即为游离龈沟 （高度约 l.Omm) ， 临床上将冠边缘置于龈沟内即 可达到修复美学效果。 本种植体植入后， 其修复肩台 4高出骨 6表面 2.0mm， 即意 味着修复肩台 4和种植牙冠 3边缘位于游离龈沟内 （龈下） 。 当患者牙龈 5菲薄吋 ， 植入深度亦可相应增加， 即植入后陶瓷部 1的修复肩台 4距离骨 6表面的距离小 于 2.0mm。
[0035] 种植体就位后， 缝合关闭牙龈 5， 手术结束。 当种植体植入后的初期稳定性高 吋， 可考虑制作临吋冠， 并参照与对颌牙齿的咬合关系调整临吋冠形态， 使临 吋冠处于适当低咬合状态， 避免种植体承受过大的咬合力， 利于其骨 6愈合。
[0036] 术后 3个月患者复诊， 检査种植体骨 6愈合情况， 去除临吋冠， 从种植体的修复 段 11水平取模， 制作永久全瓷冠， 并择期佩戴， 治疗完成。 若患者第 1次手术吋 接受引导骨再生术， 则应术后 6个月再行上述取模、 制冠、 佩戴过程。 种植体修 复最终完成状态如图 3所示。
[0037] 实施例二、 实施例三， 其结构、 临床操作方法均与实施例一一致。 对于本领域的技术人员来说， 在不脱离本发明结构的前提下， 还可以作出若干 变形和改进， 这些也应该视为本发明的保护范围， 这些都不会影响本发明实施 的效果和专利的实用性。

Claims

权利要求书
[权利要求 1] 金属 -陶瓷口腔种植体， 其特征在于， 包括陶瓷部、 金属加强部和种 植牙冠， 陶瓷部包括修复段、 穿龈段和锥度段， 种植牙冠与修复段固 定连接， 金属加强部包覆于锥度段外且两者固定连接。
[权利要求 2] 根据权利要求 1所述的金属 -陶瓷口腔种植体， 其特征在于： 所述的修 复段和锥度段均呈圆台状， 穿龈段的一端与修复段的大径端连接， 穿 龈段的另一端与锥度段的小径端连接；
所述的穿龈段呈圆柱状；
所述的锥度段与金属加强部为间隙配合。
[权利要求 3] 根据权利要求 1所述的金属 -陶瓷口腔种植体， 其特征在于： 所述的修 复段一侧设有抗旋转面。
[权利要求 4] 根据权利要求 1所述的金属 -陶瓷口腔种植体， 其特征在于： 所述的金 属加强部的外壁是经过酸蚀喷砂处理的粗糙表面， 且外壁设有螺纹。
[权利要求 5] 根据权利要求 1~4任意一项所述的金属 -陶瓷口腔种植体， 其特征在于
： 所述的修复段和穿龈段的连接处形成修复肩台， 所述的种植牙冠的 下端止于修复肩台处。
[权利要求 6] 根据权利要求 5所述的金属 -陶瓷口腔种植体， 其特征在于： 所述的修 复段底面直径 d！
=3.9mm〜5.2mm， 高度为 3.5〜6.0mm， 锥度角为 4°〜8°；
所述的穿龈段的高度为 3.0〜4.0mm， 直径 d 2=4.7mm〜6mm;
所述的锥度段小径端的直径 3〜4.6mm， 锥度角为 2~4°， 高度为 5.0〜7
•0mm。
[权利要求 7] 根据权利要求 5所述的金属 -陶瓷口腔种植体， 其特征在于： 所述的金 属加强部外壁的螺纹， 其螺距为 0.8〜1.25mm之间， 螺纹截面呈三角 形， 螺纹齿高 0.2mm。
[权利要求 8] 根据权利要求 5所述的金属 -陶瓷口腔种植体， 其特征在于： 修复肩台 的宽度为 0.4mm。
[权利要求 9] 根据权利要求 6~8任意一项所述的金属 -陶瓷口腔种植体， 其特征在于 ： 所述的金属加强部外壁呈圆柱形， 外壁直径(13与穿龈段直径 d2相同 ， d3=dfe4.7〜6mm， 内腔呈圆台状， 且圆台的锥度角为 2~4。； 金 属加强部的底壁厚度为 1.0mm, 金属加强部侧壁的最小厚度位于陶瓷 部的锥度段底面水平， 此厚度最小为 0.5mm。
[权利要求 10] 根据权利要求 9所述的金属 -陶瓷口腔种植体， 其特征在于： 所述的金 属加强部由左部和右部焊接而成。
PCT/CN2016/112378 2016-12-27 2016-12-27 金属-陶瓷口腔种植体 WO2018119666A1 (zh)

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CN104367388A (zh) * 2014-12-08 2015-02-25 韩梅 基体可调式口腔种植体
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CN106667597A (zh) * 2016-12-27 2017-05-17 中国人民解放军第三军医大学第附属医院 金属‑陶瓷口腔种植体

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Publication number Priority date Publication date Assignee Title
CN1557264A (zh) * 2004-02-06 2004-12-29 吴大怡 钛金属陶瓷颈圈复合牙种植体
CN101352370A (zh) * 2007-07-27 2009-01-28 精工爱普生株式会社 牙科用植入体的制造方法以及牙科用植入体
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