| 摘要 |
<p>The present invention relates to a toothbrush with uniform diameter bristles containing a polishing agent with a particle size of from about 0.01 νm to about 100 νm, wherein cleaning of the teeth is improved without any of the adverse side effects associated with over aggressive abrasion. An embodiment of the present invention includes a toothbrush including a handle associated with a head having at least one tuft securely affixed in or attached to the head, said tuft including a plurality of filaments comprised of (a) a thermoplastic filament base material and (b) an effective polishing amount of a polishing agent having a particle size of from about 0.1 νm to about 10 νm. Particles less than 0.1 νm can be used if aggregation occurs such that the aggregate size on bristle is as described. Another embodiment of the present invention includes a method of cleaning the oral cavity comprised of: (A) providing a toothbrush including a handle associated with a head having at least one tuft securely affixed in or attached to the head, said tuft including a plurality of filaments comprised of (a) a thermoplastic filament base material and (b) an effective polishing amount of a polishing agent having a particle size of from about 0.10 to about 10 microns; (B) applying an effective amount of an abrasive-free and polishing agent-free dentifrice to the free ends of said bristles; and, (C) brushing the teeth, gums, etc. of said oral cavity.</p> |
