Toothbrush with inter-gingiva-sulcus scraping bristles

A manually operated toothbrush, 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, and a plurality of scraping bristles extending from the scraping bristle stem, each scraping bristle further having a plurality of spaced scraping flakes located thereon;
• 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, 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;
• said manually operated toothbrush further having a block handle which has a pair of lateral slots and a master slot, a master button slidable in the master slot and an elastic member located in the block head engageable with an end of the scraping bristle stem, the scraping bristle stem including two separate stems, wherein each scraping bristle stem has a side button slidably engageable with one of the lateral slots and has another end thereof engageable with the master button.

An electrically operated toothbrush, 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, and a plurality of scraping bristles extending from the scraping bristle stem, each scraping bristle further having a plurality of spaced scraping flakes located thereon;
• 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, 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;
• said electrically operated toothbrush further having a shell, a movable block head, a motor, a battery, an oscillation means, a reciprocal means and a switch, wherein the scraping bristle stem has a latch means at one end thereof, the motor being driven by the battery, the switch being able to activate a slidable driving gear mounting on a motor shaft to drive the oscillation means to oscillate the block head for brushing teeth or to drive the reciprocal means to extend or retract the scraping bristles in the gingiva sulcus for removing tartars and dental plaque formed therein.