Degradable tooth whitening material as well as preparation and application thereof

Abstract

The invention belongs to the field of tooth whitening, and particularly relates to a degradable tooth whitening material as well as preparation and application thereof. The tooth whitening material provided by the invention has a whitening component of stereocomplex polylactic acid. The biodegradable and biocompatible tooth whitening material provided by the invention not only has a better whitening effect, but also has no damage to teeth; and in addition, the effect of rapidly whitening teeth under mild conditions is achieved.

Description

technical field [0001] The invention belongs to the field of tooth whitening, and in particular relates to a degradable tooth whitening material and its preparation and application. Background technique [0002] Tooth whitening is a large part of modern people's concern about dental health. Due to smoking, drinking, drug use, genetic factors and other reasons, many people are not satisfied with the color of their teeth. [0003] At present, for tooth whitening, the most important thing is to use whitening agent. The main component of common whitening agent is peroxide. Generally, the whitening agent is acidic agent or strong oxidant, which uses acid etching or oxidation to remove the adhesion on the tooth surface. Heterogeneous materials, such substances destroy the heterogeneous materials on the tooth surface, although the whitening effect is obvious, but they will irritate the oral cavity due to corrosion. In addition, since the tooth material itself is an inorganic mater...

AI Technical Summary

Problems solved by technology

[0003] At present, for tooth whitening, the most important thing is to use whitening agent. The main component of common whitening agent is peroxide. Generally, the whitening agent is acidic agent or strong oxidant, which uses acid etching or oxidation to remove the adhesion on the tooth surface. Heterogeneous materials, while destroying the heterogeneous materials on the tooth surface, although the whitening effect is obvious, they will irritate the oral cavity due to corrosion

In addition, since the tooth material itself is an inorganic material, it will cause damage to the tooth material itself under the action of corrosion or oxidation.

In the end, it seems that several existing organic whitening materials have relatively large defects, and cannot achieve tooth whitening under the premise of less impact

[0004] In view of the above defects, the publication number is CN110464674A discloses a tooth whitening product containing piezoelectric material, pointing out that the piezoelectric material containing piezoelectric effect is used as the whitening component of the tooth whitening product, and the tooth whitening product contacts the teeth and exerts pressure on the tooth surface , to activate the piezoelectric properties of the piezoelectric material, thereby generating a large number of active groups, degrading the stains on the tooth surface, and realizing the whitening of the teeth; although this product will not damage the tooth structure, the disclosed material with piezoelectric effect A composite of one or more materials selected from BaTiO3, GaN, ZnSnO3, (Na, K)-NbO3, ZnO, lead zirconate titanate, lead magnesium niobate, polyvinylidene fluoride and polyvinylidene fluoride or Compositions, such as lead magnesium niobate titanate; since piezoelectric materials contain lead and are non-degradable, there are potential hazards to human health; and these piezoelectric materials need to be selectively polarized in order to achieve a good whitening effect In addition, the selected piezoelectric material needs to be operated under high-power, high-frequency vibration conditions (such as 40W, 1000Hz), so that the tooth color can be obviously whitened; these factors limit its application range

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