Pre-mixed calcium silicate/magnesium phosphate double-phase composite self-solidification root canal filling material and preparation method and application thereof

Abstract

The invention provides a pre-mixed calcium silicate / magnesium phosphate double-phase composite self-solidification root canal filling material and a preparation method and application thereof. Magnesium phosphate bone cement powder and at least one calcium silicate compound serve as the main phase, and at least one nonaqueous phase solvent capable of being mixed and dissolved with water and at least one injection-resistance material are added to prepare the root canal filling material with the excellent injectable performance. According to the pre-mixed calcium silicate / magnesium phosphate double-phase composite self-solidification root canal filling material and the preparation method and application thereof, the advantages of magnesium phosphate and calcium silicate materials are combined, so that the solidification time is short, the biological activity is good, and the marginal seal and anti-microbial characteristics are good; and meanwhile clinical application is convenient, and the root canal filling material can serve as the filling material for the field of dental department restoration such as pulp-capping and root canal therapy.

Description

technical field [0001] The invention belongs to the field of medical equipment / biological materials, and in particular relates to a premixed calcium silicate / magnesium phosphate dual-phase composite self-curing root canal filling material and its preparation method and application. Background technique [0002] Pulp capping and root canal therapy are the most common treatment methods for clinical oral endodontics. Pulp capping is suitable for the treatment of clinically diagnosed limited or reversible pulp lesions. Its principle is to cover the dentin surface close to the pulp or the exposed pulp wound surface with preparations that can restore pulp lesions to Protect the pulp and eliminate lesions. Root canal therapy is suitable for clinically diagnosed total or irreversible pulp disease, and its principle is to remove the infected pulp and preserve the living tooth. Although the treatment schemes are different, what they both have in common is that material preparations ...

AI Technical Summary

Problems solved by technology

At present, there are many kinds of filling materials clinically used in the treatment of endodontics, but there are some disadvantages: materials such as zinc oxide clove oil cement, GIC, composite resin, etc. do not have biological activity, cannot promote the deposition of cementum, and cannot reach the Physiological sealing effect; calcium hydroxide does not have solidification and forming properties, is prone to particle dissociation, and lacks biological activity

But the disadvantage is that the paste only uses a single calcium silicate-based self-curing system, which inevitably has problems such as long curing time, and it is difficult to fully meet the clinical needs.

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