CN112674896A - Method for manufacturing integrated sleeve crown - Google Patents
Method for manufacturing integrated sleeve crown Download PDFInfo
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- CN112674896A CN112674896A CN202011502427.3A CN202011502427A CN112674896A CN 112674896 A CN112674896 A CN 112674896A CN 202011502427 A CN202011502427 A CN 202011502427A CN 112674896 A CN112674896 A CN 112674896A
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Abstract
The invention discloses a manufacturing method of an integrated sleeve crown, which comprises the following steps: manufacturing a wax model of the inner crown of the sleeve crown, embedding and casting to obtain a metal crown, and finishing positioning, grinding and polishing to obtain the inner crown; accurately resetting the inner crown to the abutment of the set model, filling the concave part, paving bottom wax, copying a female die by using silicon rubber, pouring an embedding material, and preparing an outer crown stent wax model after solidification for 30 min; clamping the inner crown wax-impregnated crown by using an inner crown clamp, taking the wax crown from the inner crown, transferring the wax crown onto a refractory model abutment, manufacturing a removable denture, and connecting the wax crown and a bracket wax pattern into a whole; embedding and casting to obtain a metal crown bracket with an integrated outer crown and bracket, and polishing the outer crown and the bracket in place; and (3) building polymerized porcelain on the outer crown, arranging resin teeth on the support metal net, and then performing glue punching and polishing to complete the manufacture of the integrated sleeve crown. The outer crown and the bracket are integrally cast without any bonding or welding, the requirement on the jaw biting space is low, and the service life of the sleeve crown is prolonged.
Description
Technical Field
The invention relates to the technical field of oral treatment, in particular to a manufacturing method of an integrated sleeve crown.
Background
The collet crown is an advanced removable denture fixing device, and the collet crown fixing body consists of an inner crown and an outer crown. The inner crown is adhered to the abutment, and the outer crown is connected with other parts of the false tooth. The false tooth generates a fixing force through the embedding action between the inner crown and the outer crown, so that the false tooth obtains good fixing and stability. At present, most sleeve crowns are manufactured by firstly manufacturing an outer crown wax pattern on an inner crown of a sleeve, then building a connecting rod at a far-middle free end of the wax pattern, completing the outer crown of the metal sleeve by embedding and casting, and polishing to enable the outer crown and the inner crown to be smoothly in place; then, removable dentures are manufactured on the outer crown, and the removable dentures and the outer crown are connected together through welding materials, laser or self-gel at the later stage, and finally tooth arrangement is completed. However, the following disadvantages exist in the manufacturing method: (1) two times of embedding and casting are needed, the process is complicated, and the efficiency is slow; (2) the metal materials of the outer crown and the stent are different, and the risk of fracture is easy to occur due to lack of nursing in the later period and insufficient strength of the outer crown stent; (3) in the case of an intraoral occlusal space deficiency, the additional connected portion affects later tooth arrangement.
Disclosure of Invention
In view of the above, the present invention provides a method for manufacturing an integral type sleeve crown, so as to solve the problems pointed out in the background art.
In order to achieve the purpose of the invention, the technical scheme is as follows:
the manufacturing method of the integrated sleeve crown comprises the following steps:
(1) manufacturing a wax model of the inner crown of the sleeve crown, embedding and casting to obtain a metal crown, and finishing positioning, grinding and polishing to obtain the inner crown;
(2) accurately resetting the inner crown obtained in the step (1) to the abutment of the set model, filling the concave and paving bottom wax, copying a female die by using silicon rubber, and pouring an embedding material, wherein the embedding materials of the abutment part and the bracket part need to be separately poured, the concentration of the embedding liquid of the abutment part is higher than that of the embedding liquid of the bracket part, and after 30min of solidification, an outer crown bracket wax pattern is manufactured;
(3) clamping the inner crown wax-impregnated crown by using an inner crown clamp, taking the wax crown from the inner crown, transferring the wax crown onto a refractory model abutment, manufacturing a removable denture, and connecting the wax crown and a bracket wax pattern into a whole;
(4) embedding and casting to obtain a metal crown bracket with an outer crown and the bracket integrated, polishing the in-place outer crown and the bracket, after the in-place outer crown and the bracket are in place, the rear edges of the inner crown and the outer crown of the sleeve are in close fit and move without tilting, the sleeve has a certain fixing force and a friction force, polishing and polishing are carried out in the crown by using a small hairbrush, the bracket part is in close contact with a tissue surface without seams, and finally polishing and brightening of the metal at the lingual side of the outer crown and the;
(5) and (3) building polymerized porcelain on the outer crown, arranging resin teeth on the support metal net, and then performing glue punching and polishing to complete the manufacture of the integrated sleeve crown.
Preferably, the thinnest thickness of the coping prepared in the step (1) is 0.3mm, the coping cannot be leaked due to excessive thickness or excessive thinness, and the surface of the coping is smooth and has no lines.
Preferably, the thickness of the outer crown is 0.3mm-0.5mm, and a porcelain space is reserved on the maxillofacial surface.
Preferably, the shore hardness of the silicone rubber in the step (2) is lower than that of the conventional film-coated silicone rubber.
Preferably, the embedding material in step (2) must be able to expand freely to ensure an exact fit.
The invention has the beneficial effects that: the outer crown and the bracket are integrally cast without any bonding or welding; has biocompatibility because only one alloy is used for the outer crown and the stent; the appearance is delicate and light, and the supporting structure is stable; the requirement on the jaw biting space is low; compared with the existing manufacturing method of the sleeve crown, the sleeve crown manufactured by the method has the advantages of long service life, low manufacturing cost and high economic benefit.
Detailed Description
The following examples are intended to further illustrate the present invention and should not be construed as limiting the scope of the invention, and other insubstantial modifications and adaptations of the invention by those skilled in the art based on the teachings herein are intended to be covered thereby.
The manufacturing method of the integrated sleeve crown comprises the following steps:
(1) manufacturing a wax model of the inner crown of the sleeve crown, embedding and casting to obtain a metal crown, and finishing positioning, grinding and polishing to obtain the inner crown;
(2) accurately resetting the inner crown obtained in the step (1) onto an aggregate model abutment, filling a concave and paving bottom wax, copying a female die by using silicon rubber, wherein the Shore hardness of the silicon rubber is softer than that of conventional film-coated silicon rubber, and pouring an embedding material, wherein the embedding materials of an abutment part and a bracket part need to be separately poured, the powder-liquid ratio of the abutment and the bracket is different, the concentration of the embedding liquid of the abutment part is higher than that of the bracket part, the shrinkage ratio of a later refractory material model and the in-place tightness of the outer crown and the bracket are influenced by the step, after 30min solidification, a wax model of the outer crown bracket is manufactured, and the solidified embedding material has a smooth surface so that the outer crown in metal can achieve a sufficient smooth surface; the material must be precisely controlled by the liquid concentration.
(3) Clamping the inner crown wax-impregnated crown by using an inner crown clamp, taking the wax crown from the inner crown, transferring the wax crown onto a refractory model abutment, manufacturing a removable denture, and connecting the wax crown and a bracket wax pattern into a whole;
(4) embedding and casting to obtain a metal crown support with an outer crown and a support integrated, polishing the outer crown and the support in place to enable the outer crown and the support to be smoothly brought into a model with an inner crown, closely fitting and moving the rear edges of the inner crown and the outer crown of the sleeve in place without tilting, having a fixed fixing force and a friction force, polishing and brightening the inside of the crown by using a small hairbrush, closely attaching the support part and a tissue surface without seams, and finally finishing polishing and brightening the metal on the tongue side of the outer crown and the support;
(5) and (3) building polymerized porcelain on the outer crown, arranging resin teeth on the support metal net, and then performing glue punching and polishing to complete the manufacture of the integrated sleeve crown.
The thinnest thickness of the inner crown prepared in the step (1) is 0.3mm, the inner crown cannot be leaked due to over-thickness or over-thickness, and the surface of the inner crown is smooth and has no lines.
The thickness of the outer crown is 0.3mm-0.5mm, and a porcelain space is reserved on the maxillofacial surface.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The manufacturing method of the integrated sleeve crown is characterized by comprising the following steps:
(1) manufacturing a wax model of the inner crown of the sleeve crown, embedding and casting to obtain a metal crown, and finishing positioning, grinding and polishing to obtain the inner crown;
(2) accurately resetting the inner crown obtained in the step (1) to the abutment of the set model, filling the concave and paving bottom wax, copying a female die by using silicon rubber, and pouring an embedding material, wherein the embedding materials of the abutment part and the bracket part need to be separately poured, the concentration of the embedding liquid of the abutment part is higher than that of the embedding liquid of the bracket part, and after 30min of solidification, an outer crown bracket wax pattern is manufactured;
(3) clamping the inner crown wax-impregnated crown by using an inner crown clamp, taking the wax crown from the inner crown, transferring the wax crown onto a refractory model abutment, manufacturing a removable denture, and connecting the wax crown and a bracket wax pattern into a whole;
(4) embedding and casting to obtain a metal crown bracket with an outer crown and the bracket integrated, polishing the in-place outer crown and the bracket, after the in-place outer crown and the bracket are in place, the rear edges of the inner crown and the outer crown of the sleeve are in close fit and move without tilting, the sleeve has a certain fixing force and a friction force, polishing and polishing are carried out in the crown by using a small hairbrush, the bracket part is in close contact with a tissue surface without seams, and finally polishing and brightening of the metal at the lingual side of the outer crown and the;
(5) and (3) building polymerized porcelain on the outer crown, arranging resin teeth on the support metal net, and then performing glue punching and polishing to complete the manufacture of the integrated sleeve crown.
2. The method for manufacturing the integral coping of claim 1, wherein the thinnest thickness of the coping obtained in the step (1) is 0.3mm, the coping cannot be too thick or too thin to leak, and the surface of the coping is smooth and has no texture.
3. The method for manufacturing the integral coping of claim 1, wherein the thickness of the outer coping is 0.3mm to 0.5mm, and a porcelain space is reserved for the maxillofacial region.
4. The method for manufacturing an integral coping according to claim 1, wherein the shore hardness of the silicone rubber in the step (2) is lower than that of a conventional coated silicone rubber.
5. The method of claim 1, wherein the embedding material in step (2) must be freely expandable to ensure an exact fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011502427.3A CN112674896B (en) | 2020-12-18 | 2020-12-18 | Method for manufacturing integrated sleeve crown |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011502427.3A CN112674896B (en) | 2020-12-18 | 2020-12-18 | Method for manufacturing integrated sleeve crown |
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| CN112674896A true CN112674896A (en) | 2021-04-20 |
| CN112674896B CN112674896B (en) | 2022-07-15 |
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| CN202011502427.3A Active CN112674896B (en) | 2020-12-18 | 2020-12-18 | Method for manufacturing integrated sleeve crown |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114305763A (en) * | 2021-12-16 | 2022-04-12 | 东莞定远陶齿制品有限公司 | Denture outer crown retention method |
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2020
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| DE10316917A1 (en) * | 2003-04-12 | 2004-11-11 | Consens Zahntechnik Gmbh | Telescopic or double crown has secondary crown section held on primary crown section using soluble powder coating as adhesive |
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| EP2399541A1 (en) * | 2010-06-23 | 2011-12-28 | Bernd Hähnel | Dental structure and method for manufacturing the same |
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| CN114305763A (en) * | 2021-12-16 | 2022-04-12 | 东莞定远陶齿制品有限公司 | Denture outer crown retention method |
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| CN112674896B (en) | 2022-07-15 |
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Effective date of registration: 20220616 Address after: 030000 501, 502, 504, floor 5, block a, Xindao Venture Park, No. 12, Kaifa lane, Taiyuan Xuefu Park, Shanxi comprehensive reform demonstration area, Xiaodian District, Taiyuan City, Shanxi Province Applicant after: Taiyuan New Dental Technology Co.,Ltd. Address before: 030000 room 503, 5 / F, block a, Xindao Pioneer Park, 12 Kaifa lane, Taiyuan Xuefu Park, comprehensive reform demonstration area, Xiaodian District, Taiyuan City, Shanxi Province Applicant before: Aigen innovation technology (Shanxi) Co.,Ltd. |
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