Multipurpose tooth-brush assembly - has two rows of wedge shaped tufts of bristles arranged in inner and outer rows

摘要

The tooth-brush consists of two rows of wedge-shaped tufts or bristles (A) which are rounded on the outside. The tufts comprise 2 to 3 rows of square inner tufts of bristles (1) displaced by 45 deg. on the toothbrush's lengthwise axis (La). During teeth-cleaning, all the tufts of bristles penetrate more easily and deeply, with a relatively acute angle (90 deg.) especially into the cavities between the teeth. All the tufts of bristles are made of plastics or natural bristles rounded at the tips. The square or wedge shape of the bristles is formed from the same shape of holes in the toothbrush bed ((Zb) which has a narrower part in its top layer. USE/ADVANTAGE - The toothbrush is universally useful and is for cleaning every tooth and gaps between the teeth and crowns without injuring the gums.