Hot gutta-percha composite filling material and preparation method thereof

By dissolving and mixing amorphous phosphate and thermoplastic polymers in volatile organic solvents, a hot tooth glue composite filler with high bioactivity was prepared, and a personalized shape was designed for it using additive manufacturing technology, the problems of insufficient bioindifference and difficulty in shape matching in the existing materials were solved, and better root canal sealing and treatment effects were achieved.

CN119700552APending Publication Date: 2025-03-28INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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Patent Information

Application Number
CN202411910080.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing polyisoprene composites have problems such as insufficient bioindifference in the root canal filling of endodontic disease and periratoplasty, difficulty in bonding with the root canal wall, and difficult to match the various shapes of adult root canals.

Method used

Amorphous phosphate and thermoplastic polymer are dissolved and mixed in volatile organic solvents to prepare a hot tooth glue composite filler with high biological activity, and design personalized shapes for it through additive manufacturing technology.

Benefits of technology

The marginal adaptability of the tooth glue tip material to the root canal wall is improved, the root canal sealing effect is enhanced, and the functions of antibacterial and promoting hard tissue regeneration are improved, and the success rate of root canal treatment is improved.

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Abstract

The invention relates to a hot gutta-percha composite filling material and a preparation method thereof, and relates to the technical field of biological medicine, the main technical scheme is that the preparation method of the hot gutta-percha composite filling material comprises the following steps: step 1), dissolving and mixing amorphous phosphate and a thermoplastic polymer in a volatile organic solvent to obtain a mixed solution; obtaining a mixture; then volatilizing the volatile solvent in the mixture to obtain a composite raw material; wherein the amorphous phosphate comprises amorphous calcium phosphate and / or copper-doped amorphous calcium phosphate; and 2) preparing the composite raw material into the hot gutta-percha composite filling material with the required specification. Amorphous calcium phosphate with high biological activity or a copper-doped amorphous calcium phosphate material is compounded in a gutta-percha point material, and further sealing can be realized through mineralization in a natural and humid dentin environment, so that the marginal adaptability of the gutta-percha point material to the wall of a root canal is enhanced.
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