Tooth brush

Abstract

A tooth brush includes body ( 18 ), neck ( 17 ), head ( 16 ), and bristles ( 15 ) at two opposite side of said head pointing opposite away from each other. Said head has plurality of through-all hole ( 12 ) for bristle insertion. The middle portion of said through-all hole has smaller diameter compare to entrance. Said head is tapered toward the end. Said bristles are trimmed such that they are tapered toward the end of said head.

1 . A tooth brush for cleaning upper and lower part of the teeth at the same time comprising:
 (a) body,   (b) head having plurality of through all holes, and   (c) bristles inserted into said through all holes, middle portion of said bristles are tightly secured by said holes, two ends of said bristles sandwiching said head, pointing in opposite direction away from said head, and,   
       whereby, user can hold said body as handle to put said head in between their upper teeth and their lower teeth and use said bristles to brush said upper and said lower teeth at the same time, without having to turn said bristles 180 degrees. 
     
     
         2 . The tooth brush of  claim 1  wherein said head has plurality of through all holes for said bristle insertion. 
     
     
         3 . The tooth brush of  claim 1  wherein said middle portion of said through all hole is smaller than said hole's entrance. 
     
     
         4 . The tooth brush of  claim 1  wherein said head become thinner toward the tip. 
     
     
         5 . The tooth brush of  claim 1  wherein said bristles are trimmed so as they become shorter as they get closer to the tip of said head. 
     
     
         6 . The tooth brush of  claim 1  wherein said bristles at two opposite of side of said head are trimmed parallel to each other. 
     
     
         7 . The tooth brush of  claim 1  wherein said bristles at two opposite of said head are mirror image of each other. 
     
     
         8 . The tooth brush of  claim 1  wherein said bristles at two opposite of said head are not mirror image of each other. 
     
     
         9 . The tooth brush of  claim 1  wherein said bristles are trimmed in sawtooth shape. 
     
     
         10 . A tooth brush for cleaning upper and lower part of the teeth at the same time comprising:
 (a) body   (b) head having plurality of holes at two opposite sides, and   (c) bristles are inserted into said holes having their ends pointing away from each other at two opposite directions, and said bristles sandwiching said head,   
       whereby, user can hold the body as handle and put said head into their mouth using said bristles to brush their upper part and their lower part of their teeth at the same time, without having to turn said bristles 180 degrees.