Patent ID: 6105191
Filing Date: 2000-08-22
Classification: A46B,A61C

Abstract:
A toothbrush with inter-gingiva-sulcus scraping bristle, comprising:a plurality of bristle clusters having a combined bristle top contour that generally mates with the dental arch on a row of teeth to be brushed;a scraping bristle stem, movable in a block head of the toothbrush, a plurality of scraping bristle branches horizontally branching from the scraping bristle stem, and a plurality of scraping bristles vertically and respectively extending from the scraping bristle branches, each scraping bristle further having a plurality of spaced scraping flakes located thereon, wherein the scraping flakes are made of an elastic material;a plurality of tubes located in the block head for the scraping bristles to pass therethrough, the tubes are structured to cause the scraping bristles to be moved vertically with respect to the surface of the block head when the scraping bristle stem is moved horizontally; anda moving member for moving the bristle stem horizontally along the block head, so as to allow the scraping bristles to move to and fro in gingiva sulcus and the scraping flakes to scrap off tartars formed on teeth surfaces when the bristle clusters are positioned against the dental arch.