| 摘要 |
The disclosed dentifrice is comprised of micro-sized particles or microfibers of nondeleterious organic plant components, specifically the branches or roots of trees, botanically known as the azadirachta or salvadora persica, and commonly known in different parts of the world as the peelu, miswaak, neem or siwak tree. The dentifrice is otherwise void of any and all mineral abrasives commonly used in dentifrice. The micro-sized particles or microfibers are filtered through and thus are generally sized less than the openings of 20-60 mesh screen; and when moistened by saliva yield a soft nondamaging abrasive for cleaning and whitening the teeth and an astringent for acting on the gums and other soft tissue of the mouth. The micro-sized particles or microfibers may be mechanically ground and then dry filtered through very fine screens, or these micro-sized particles or microfibers may additionally be heated in a bath of deionized water and the composite liquid may then be filtered with only minimal pressure differential through a very fine cloth bag filter of the order of perhaps 20-60 mesh. Additives for taste, healing, color or media consistancy may be blended with the micro-sized particles or microfibers as desired. The dentifrice may be used as a paste, gel, powder, rinse or the like.
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