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Preparation method of integrated fiber post core for oral cavity

A technology of post-core and fiber, which is applied in the field of preparation of integrated fiber post-core for oral cavity, which can solve problems such as tool wear, low raw material utilization rate, and reduced milling accuracy

Pending Publication Date: 2021-09-10
华中科技大学协和深圳医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the defects of this integrated fiber post and core are mainly that milling will cause tool wear and reduce milling accuracy, and CAD / CAM belongs to subtractive manufacturing, which mills the resin body into a specific shape, and the utilization rate of raw materials is low. cost

Method used

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Examples

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Embodiment Construction

[0033] The present invention will be further described in detail below in combination with specific embodiments.

[0034] It should be emphasized that the following descriptions are non-limiting and non-exclusive examples, illustrative only, and not intended to limit the scope of the invention and its application.

[0035] A method for preparing an integrated fiber post-core for oral cavity, comprising the preparation of short quartz fibers, the preparation of a photocurable resin matrix and the preparation of a photocurable resin matrix short quartz fiber suspension.

[0036] The preparation of short quartz fibers is to cut the quartz fibers with a diameter of 5 μm and a linear density of 72tex into short quartz fibers with a length of 1 mm by using a guillotine knife. Soak it for 2 hours, take it out, and finally place it in a vacuum drying oven with a temperature of 100°C and dry it for 6 hours.

[0037] The preparation of the light-curable resin matrix is ​​to uniformly m...

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PUM

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Abstract

The invention relates to a preparation method of an integrated fiber post core for an oral cavity. The preparation method comprises preparation of short quartz fibers, preparation of a light-cured resin matrix and preparation of a light-cured resin matrix and short quartz fiber suspension, and further comprises the following steps: 1) obtaining three-dimensional data; 2) designing a personalized integrated fiber post core in an emulated manner; 3) making a 3D-print emulated post core file; and 4) manufacturing the personalized integrated fiber post core. According to the method, the personalized integrated fiber post core with high degree of adaptation with a shape of a root canal can be quickly and accurately obtained, a resin adhesive layer is thin and uniform after adhesion, the adhesion area and micro leakage are effectively reduced, the long-term stability of repair is improved, and the requirements on oral cavity repair are better met. Compared with a CAD / CAM (computer-aided design / computer-aided manufacturing) method for manufacturing the integrated fiber post core, the method has the advantages that the precision is high, the adaptation degree is high, the loss of a milling cutter is avoided, raw materials are only mixed for later use during preparation, the corresponding consumption of the raw materials can be adjusted as required, a large number of raw materials are saved, and the oral repair cost of a patient is remarkably reduced.

Description

technical field [0001] The invention relates to a fiber post and core, in particular to a method for preparing an oral cavity integrated fiber post and core. Background technique [0002] Post-core crown restoration is a common method of crown restoration, which can preserve a large area of ​​​​defective teeth. Common post cores include metal casting post cores and finished fiber post cores. The elastic modulus of the metal post core is much higher than that of dentin, which can easily cause tooth root fracture, and the metal material is opaque, so it cannot meet the aesthetic requirements when restoring anterior teeth; most of the finished fiber posts are made of continuous, high-strength quartz fibers Bundles or glass fiber bundles are infiltrated in the composite resin matrix, and the fiber posts are prepared by tension-compression molding and surface micro-treatment. The elastic modulus is close to that of dentin, which can effectively reduce the occurrence of root frac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C5/77A61L27/02A61L27/16B33Y10/00B33Y70/10
CPCA61C5/77A61L27/025A61L27/16B33Y10/00B33Y70/10A61L2430/12C08L33/12
Inventor 孙仕晨陈沐章立群任英华
Owner 华中科技大学协和深圳医院
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