Biomimetic type preformed ceramic abutment of implanted tooth and preformed crown thereof

A ceramic abutment, bionic technology, applied in implants, dentistry, dental prosthetics, etc., can solve the problems of poor anti-rotation function, affect the appearance, reduce the tightness between the crown and the abutment, and reduce the bonding The use of the agent, the reduction of irritation of the gums, the realistic effect of the restoration effect

Inactive Publication Date: 2010-08-18
杭州口腔医院集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defects of the prefabricated abutment structure are: 1) The abutment is made of titanium metal, although the titanium metal can basically meet the clinical needs in terms of function, but in terms of aesthetic effect, if the gingiva in the edentulous area is too thin Or gingival recession can make the metal color of the abutment appear, which affects the aesthetics, especially in the aesthetic area of ​​the anterior teeth. For patients with a high smile line, the appearance or exposure of the titanium metal color of the gingival margin will undoubtedly make the aesthetic restoration effect of the implant denture remarkable. Reduced; 2) The existing preformed abutment has a single shape, generally only a truncated cone, and is not designed according to the shape of the anterior teeth, pre

Method used

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  • Biomimetic type preformed ceramic abutment of implanted tooth and preformed crown thereof
  • Biomimetic type preformed ceramic abutment of implanted tooth and preformed crown thereof
  • Biomimetic type preformed ceramic abutment of implanted tooth and preformed crown thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Figure 23-26 As shown, the present embodiment has a titanium metal implant 4 implanted into the alveolar bone, the implant profile is screw-shaped, the outer surface is threaded, and the bottom end can be arc-shaped (such as Figure 23 shown), can also be a plane (such as Figure 25 As shown), there are screw holes inside the implant, which can be matched with the central retaining screw 5 (the screw also has two structures, Figure 24 The threaded part of the screw is longer, Figure 26 The screw thread portion of the screw is shorter). Titanium metal implants have been widely used clinically, and there are also changes in structure, which is not the focus of protection in the present invention. One of the main features of this example is: the prefabricated porcelain abutment 1 that fits the anterior teeth on the upper part of the implant 4, the porcelain abutment includes the lower structure 1-3 inserted into the implant, simulating the shape of the natural tooth ...

Embodiment 2

[0032] The basic structure and materials used in this embodiment are the same as those in Example 1, except that this example is applied to premolars. The implant 4 of this example is the same as Example 1, and will not be repeated. The prefabricated porcelain abutment 1 in this example is as Figure 5 , 6 , 7, its upper structure 1-1 is approximately elliptical cylindrical, the buccal lingual diameter is slightly wider than the mesio-distal diameter, and the top is narrow and the bottom is wide, simulating the tooth shape of natural premolar full crown restoration; the middle structure 1-2 simulates the shape of the dumbbell-shaped tooth neck of natural premolars; the lower structure 1-3 is in the shape of a rounded table; the interior of the prefabricated porcelain abutment is provided with a central screw hole 1-4 that penetrates up and down. Due to its irregular shape, the upper structure can prevent the rotational displacement between the prefabricated inner crown and t...

Embodiment 3

[0036] The basic structure and materials used in this embodiment are also the same as in Example 1, except that this example is applied to molars. The implant 4 of this example is also the same as Example 1, and will not be repeated. The prefabricated porcelain abutment 1 in this example is as Figure 8 , 9 , 10, its upper structure 1-1 is approximately elliptical cylindrical, narrow at the top and wide at the bottom, which resembles the shape of natural molars restored with full crowns, and has a buccal groove depression 1-1-1 in the middle of the buccal side , with a lingual groove depression 1-1-2 in the middle of the lingual side; the middle structure 1-2 simulates the approximately rectangular neck shape of natural molars; the lower structure 1-3 is in the shape of a rounded frustum; There are central screw holes 1-4 through up and down. The superstructure has a certain irregular shape, such as buccal and lingual groove depressions, which can prevent the rotational dis...

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Abstract

The invention relates to a biomimetic type preformed ceramic abutment of an implanted tooth and a preformed inner crown thereof, belonging to the field of implant restoration of dentition defect or dentition deletion of an oral cavity and aiming at improving the appearance, shape and color, strengthening retention and reducing microleakage. The technical scheme of the invention is as follows: the implant denture restoration is matched with different preformed ceramic abutments according to different teeth positions, i.e., the upper parts of the implants with implanted alveolar bones are matched with preformed ceramic abutments according to different teeth positions; the preformed ceramic abutment comprises a lower part structure inserted into the implant, a middle part structure imitating the shape of the neck of a natural tooth and an upper part structure imitating the form of tooth preparation of the natural tooth; and the outer surface of the upper part structure of the preformed ceramic abutment is matched with the preformed inner crowns of initial dental crowns of different teeth positions. The invention is applicable to the implant restoration of dentition defect or dentition deletion of the oral cavity, especially the deletion restoration of anterior teeth with higher requirement for beauty.

Description

technical field [0001] The invention relates to an artificial dental implant, in particular to a bionic prefabricated porcelain abutment and a prefabricated inner crown of a dental implant. It is suitable for implant restoration of oral dentition defects or loss of dentition, especially the restoration of missing anterior teeth with high aesthetic requirements. Background technique [0002] Implant restoration of defective or missing oral dentition has been carried out for more than 40 years in the world and more than 20 years in China. The ten-year success rate of implant restoration is over 95%, which shows that the application of implant technology in this field has been perfected day by day. However, the goal of modern restorative dentistry is not limited to "restoring the maximum oral function", but to strive to achieve "the best aesthetic effect" at the same time, especially the restoration of implant dentures in the aesthetic area of ​​the anterior teeth. [0003] De...

Claims

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Application Information

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IPC IPC(8): A61C8/00
Inventor 郑园娜谷志远
Owner 杭州口腔医院集团有限公司
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