| abstract |
A method of manufacturing a toothbrush, including providing a bristle having a first opening, a second opening, and a lumen between the first and the second openings; contacting the first opening with a substance; applying a vacuum to the second opening thereby suctioning the substance into the lumen through the first opening to provide a bristle containing a substance; and attaching the bristle containing the substance to a toothbrush. A toothbrush including a plurality of bristles having fracturable walls for controllably releasing a substance from the bristles into the oral cavity is provided. |