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Absorbable polylactic acid film for enhancing airtightness of absorbable root canal post of deciduous tooth

A technology of polylactic acid and root canal post, which is applied in the field of oral materials to achieve the effect of promoting growth and development

Active Publication Date: 2013-10-16
武汉伢典生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] So far, a material that is the same as the absorbable root canal post, which can be absorbed synchronously with the absorbable root canal post and the root of the deciduous tooth, does not affect the normal replacement of the deciduous permanent tooth, and is used for absorbable sealing between the absorbable root canal post and the root canal of the deciduous tooth material, unresolved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This example is used to enhance the absorbable polylactic acid film of the deciduous tooth absorbable root canal post airtight performance. The polylactic acid absorbable root canal post 1.0g with a diameter of 2.0mm and 10g of chloroform are placed in a brown jar and shaken, sealed and preserved. Shake to make it fully dissolved and become oily, then spread the solution on a film-forming glass plate on a horizontal tabletop, let it dry naturally, and form a film after the solvent evaporates, cut it into 10mm×50mm rectangular strips to absorb polylactic acid film, It is used in dentistry to enhance the sealing performance and fixation of deciduous teeth with absorbable root canal posts.

Embodiment 2

[0024] This example is used to enhance the absorbable polylactic acid film of the deciduous tooth absorbable root canal post airtight performance. The polylactic acid absorbable root canal post 1.2g with a diameter of 2.0mm and chloroform 15g are placed in a brown jar and shaken, sealed and preserved. Shake it to fully dissolve it into an oily state, then spread it on a film-forming glass plate on a horizontal tabletop, let it dry naturally, and then repeat the coating once again. Absorbable polylactic acid film for dental enhancement of the sealing performance and fixation of absorbable root canal posts in deciduous teeth.

Embodiment 3

[0026] In this example, the absorbable polylactic acid film used to enhance the sealing performance of the absorbable root canal posts of deciduous teeth consists of 1.5g of poly-L-lactic acid (PLLA) and 8g of chloroform in a brown jar and shakes it. Fully dissolve in oily form, then spread it on a film-forming glass plate on a horizontal tabletop, let it air dry naturally, and repeat the coating once again, after the solvent volatilizes, the film will form, and cut into 10mm×50mm rectangular strips to absorb polylactic acid film , for dental enhancement of deciduous teeth absorbable root canal post sealing performance and fixation.

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Abstract

The invention discloses an absorbable polylactic acid film for enhancing airtightness of an absorbable root canal post of a deciduous tooth. The absorbable polylactic acid film is prepared by dissolving the following raw materials in parts by weight: 0.5-1.5 parts of polylactic acid, and 5-15 parts of solvent. The absorbable polylactic acid film and the absorbable root canal post are made of the same material, and the absorbable polylactic acid film has no influence on human dental follicle cells, deciduous periodontal ligament cells and deciduous dental pulp cells, cannot result in apoptosis of the human dental follicle cells, is nontoxic, can effectively control the effective strength of the absorbable root canal post, can recover functions and a shape of the deciduous tooth for a long time to the greatest extent, and does not influence normal replacement of deciduous permanent teeth. A preparation method of the film is simple and practicable, and can be used for manufacturing during clinical application. The film is used for residual root and residual crown repair of the deciduous tooth, a crown restoration is good in retention postoperatively, and the film meets the clinical requirement of pediatric dentistry.

Description

[0001] technical field [0002] The invention belongs to the technical field of oral cavity materials, and relates to a dental sealing material between a root canal and a root canal post, in particular to an absorbable root canal post sealing material used in the restoration of deciduous teeth with residual roots and crowns. Absorbent polylactic acid film. Background technique [0003] Due to severe infantile caries (Severe Early Childhood Caries, S-ECC) or trauma, infants with residual roots and crowns have poor resistance and retention during restoration treatment, and fillings loose and fall off are one of the common adverse phenomena. one. The literature shows that the treatment of most deciduous teeth with residual roots and crowns often chooses symptomatic treatment or extraction, which not only affects the appearance and pronunciation of the children, but also affects the normal eruption of subsequent permanent teeth and the development of the jaw, and is also one o...

Claims

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Application Information

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IPC IPC(8): A61L31/06A61L31/14
Inventor 黄华陈爱华周永明
Owner 武汉伢典生物科技有限公司
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