PMID: 2489671Jan 1, 1989Paper

Gingival response by the effect of brushing method and hardness of the toothbrush bristle

Meikai Daigaku shigaku zasshi = The Journal of Meikai University School of Dentistry
K Iwakami, Y Watanabe

Abstract

The effect of toothbrushing is plaque removal and gingival massage. However, intensive oral hygiene frequently results in gingival damage. The object of this study was to determine the damage to oral soft tissues resulting from three methods of brushing (roll, scrub, and bass method) and the use of toothbrushing with two different hardness (Hard: 10.2 kg/head, Soft: 3.2 kg/head). Six monkeys were used for this study. The mouth of each was divided into four sections: upper right for a control, upper left for the scrub method, lower right for the roll method, and lower left for the bass method. The roll method was run at 10 strokes per 10 seconds with a load of 800 grams, and the scrub and bass methods were run at 30 back and forth strokes per 10 seconds, with a load of 400 grams for each method. During the experimental period of five months, brushing by each of the three methods were done once a day. The gingival index, the gingival bleeding index, pocket depth, width of attached gingiva, and gingival recession were measured regularly. Analysis was performed by analysis of variance (ANOVA). The scrub method resulted in greater gingival recession and, at the same time, loss of attached gingiva than the roll and bass methods. The ...Continue Reading

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