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In Vitro Study on the Artificial Plaque Removal Effect by Use of 360 Degree Rotating Head with Sonic Tooth-Brush
Int J Clin Prev Dent 2018;14(4):228-234
Published online December 31, 2018;
© 2018 Korean Academy of Preventive Dentistry.

Jee-Hyun Lim1, Jin-Sil Kim1, Hwa-Young Choi2

1Department of Oral Health, Postgraduate School of Dankook University, Cheonan, 2Department of Dental Hygiene, College of Health, Kyungwoon University, Gumi, Korea
Correspondence to: Jin-Sil Kim
Department of Oral Health, Postgraduate School of Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan 31116, Korea. Tel: +82-70-7372-9605, Fax: +82-32-712-2818, E-mail:
Received December 12, 2018; Accepted December 17, 2018.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Objective: The authors have experimented for the artificial plaque removal effect of several kinds of 360 degree rotating head typed tooth-brushes with sonic vibratory actioned by using of automatic machine for horizontal scrub method in order to find the better toothbrush type for plaque removal.
Methods: The experiment was conducted on three medium to 360 degree rotating head toothbrushes, a medium sized tooth-brush and a medium sized toothbrush, and a flat toothbrush consisting of 30 ordinary toothbrushes. A brushing machine with horizontal scrubbing was manufactured and had variations of the end of the bristle attached to or near the surface of the teeth, a vibrating wave action force of 16,000 or 18,000 cycles per minute, and a working time of 2 or 3 minutes. The tooth removal effect was confirmed by scanning and analyzing images with a computer program after automatic brushing with the machine. The elimination rate results for each group were analyzed using the independent t-test and one-way ANOVA test.
Results: It revealed the most in removal effect for the artificial plaque in such conditions as action at near the tooth surface with 18,000 cycle for 3 minutes in case of using A, B, and C tooth-brush. And it has more removal effect rate than for using the plane tooth-brush (p<0.05).
Conclusion: It was recommended to develop the 360 degree rotating head and vibratory toothbrush focusing to use near the tooth surface with 18,000 cycles of vibration for 3 minutes at one site of the teeth area.
Keywords : toothbrush, tooth-brushing, plaque removal, vibratory tooth-brush, sonic toothbrush

December 2018, 14 (4)