These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Effect of a clamp on toothbrush bristle deterioration.
    Author: Schneider P, Musselman R, Sarkar NK.
    Journal: J Clin Dent; 1995; 6(4):198-201. PubMed ID: 8624232.
    Abstract:
    The purpose of this study was to evaluate, in vitro, the effectiveness of a device to prevent toothbrush deterioration. Ten toothbrushes from each of four brands, Oral-B 40, Py-co-pay Softex 12.0 row, Butler #330, and Oral-B 20, were divided into control and experimental groups. Toothbrushes were fixed into a machine that simulated toothbrushing by producing a reciprocating motion 41.5 mm in length at a rate of 380 strokes/min. Bristles slid over a ceramic disc that had a hardness similar to dental enamel. Pressure (450 g) was applied at a right angle to the toothbrush while it moved back and forth in a slurry of toothpaste. The pressure was calibrated with load cells. Toothbrushes were run for 15 minutes followed by a drying cycle for a total of four hours, or approximately equivalent to brushing twice daily for six months. During the drying cycle the bristles of the toothbrushes in the experimental group were compressed 3/4 their length from the brush head with a clamp (Gregory Patent #4884311). Bristle deterioration was evaluated based on Wear Index (WI), a quantitative means of ranking brushes in various stages of deterioration. Data on WI and WR showed that toothbrushes in the experimental group had significantly (< or = 0.005) less deterioration. Improvement in wear resistance was dependent on size and configuration of the bristles. Compressing the bristles between brushings retains the non-matted shape of the bristles and reduces their deterioration.
    [Abstract] [Full Text] [Related] [New Search]