Method for manufacturing a metal-ceramic dental crown and the dental crown
A technology of metal-ceramic and manufacturing methods, which is applied in the direction of dentures, etc., can solve the problems of long manufacturing cycle, ceramic teeth collapse, and low efficiency, and achieve the effects of shortening the manufacturing cycle, restoring chewing ability, and improving manufacturing efficiency
Active Publication Date: 2017-01-25
GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
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[0004] However, this method needs to make a plaster model, and it is impossible to obtain a fine model. The stress on the teeth during chewing has not been fully checked. high
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[0030] Combine below figure 2 A method of manufacturing a metal-ceramic dental crown will be described.
[0031] 1. Obtain patient oral data through reverse engineering, which is divided into two parts:
[0032] (1) Use CT to scan the patient's pre-molar oral cavity to obtain data on the occlusion of the oral cavity, including tooth shape, degree of tooth incompleteness, occlusal contact points, etc.; (2) Use CT to scan the patient's oral cavity data after molar, including post-molar teeth height and tooth shape.
[0033] 2. After obtaining the oral data, model the crown. The modeling process includes the restoration of the oral occlusal model, the restoration of the crown, the aesthetic design, the design of the occlusal contact point, and the matching of the gap between the original teeth in the oral cavity. Among them, the design of the occlusal contact point is an optimized design. After the modeling, the finite element technology is used for simulation optimization. Th...
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The invention relates to a metal-porcelain dental root crown and a method for manufacturing the same. The method includes steps of a, acquiring oral cavity data of a patient by the aid of reverse engineering before and after the teeth of the patient are ground; b, modeling porcelain dental crowns according to the oral cavity data before the teeth are ground; c, optimally designing occlusal contact points of porcelain dental crown models; d, building root crown three-dimensional models according to the steps b and c; e, importing the root crown three-dimensional models into control computers and manufacturing additives for a root crown. The metal-porcelain dental root crown and the method have the advantages that the oral cavity data of the patient are acquired before and after the teeth are ground, so that the porcelain dental crowns and the root crown can be modeled, the metal-porcelain dental root crown can be highly matched with the oral cavity of the patient, acting force applied by the patient to the oral cavity after the teeth are ground can be reduced to the greatest extent, and the purpose of recovering the mastication ability to the greatest extent can be achieved; the method can be applied to manufacturing the metal-porcelain dental root crown.
Description
technical field [0001] The invention relates to the field of artificial dental implants, in particular to a method for manufacturing a metal-ceramic dental crown and the dental crown. Background technique [0002] Porcelain teeth are mainly used in tooth restoration, so that patients can obtain better chewing ability and more beautiful teeth. It first grinds off the crown of the tooth to be repaired by the patient, and then makes a new crown by fusing ceramics on the bottom crown and wears it to achieve tooth restoration. The metal fusion-bonded porcelain crowns used clinically are mainly divided into precious metals and non-precious metals. Precious metals include high-gold and low-gold, and most of them are mixed with palladium and platinum as alloys; non-precious metals are mainly nickel-chromium alloys, pure titanium, etc. [0003] In the existing technology, the manufacture of the bottom crown is mainly done by melting and molding. The general steps are: making a plast...
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IPC IPC(8): A61C13/083
Inventor 张弓彭忠凯梁济民罗良维陈贤帅张鹏林天赐黄达鸿
Owner GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI