Glass ceramic dental crown and preparation method thereof

By introducing rare-earth-doped hydroxyapatite and functional crystals into glass-ceramic crowns and combining them with precise process parameters, the problems of insufficient mechanical, biocompatibility and fluorescence properties of existing glass-ceramic crowns have been solved, achieving multi-dimensional performance improvement and non-invasive monitoring functions for crowns.

CN122351027APending Publication Date: 2026-07-10SHANXI MEDICAL UNIV +1
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Patent Information

Application Number
CN202610786024.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-02
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing glass-ceramic crowns have shortcomings in terms of mechanical properties, biocompatibility, fluorescence properties, and adaptability to the oral environment, making it difficult to meet the needs of long-term use, and their clinical application is highly dependent on imported materials.

Method used

By using a specific ratio of lithium disilicate, rare earth-doped hydroxyapatite, and functional crystals, and by precisely controlling the preparation process parameters, a uniformly doped glass-ceramic crown is formed. Combined with the temperature- and light-sensitive response characteristics of rare earth ions, non-invasive monitoring and aesthetic effects are achieved.

Benefits of technology

It significantly improves the mechanical properties, biocompatibility, and fluorescence properties of dental crowns, has non-invasive monitoring capabilities, adapts to complex oral environments, solves the performance shortcomings of existing technologies, and meets diverse needs.

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Abstract

The invention discloses a glass ceramic dental crown and a preparation method thereof, and relates to the technical field of glass ceramic dental crowns. According to the preparation method, lithium disilicate is adopted as a base material, rare earth doped hydroxyapatite and functional crystals are compounded, and the unification of mechanical properties, biological suitability and aesthetic effects is realized by accurately regulating and controlling the synergistic ratio of all the components. Wherein the rare earth doped hydroxyapatite is prepared by adopting a hydrothermal precipitation method, particle aggregation is inhibited by utilizing the dispersion effect of trisodium citrate, and interface bonding with human body hard tissues is promoted; the rare earth doped fluorescent powder constructs a monodisperse luminescence center by controlling a rare earth ion doping process, so that concentration quenching is avoided, and the dental crown is endowed with fluorescence characteristics close to those of natural teeth.
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