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In Vivo Study on the Plaque Removal and Gingival Effect by Use of 360° Rotating Head and Sonic Vibratory Toothbrush for Adults
Int J Clin Prev Dent 2019;15(2):94-97
Published online June 30, 2019;
© 2019 International Journal of Clinical Preventive Dentistry.

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

1Department of Oral Health, Postgraduate School of Dankook University, Cheonan, 2Department of Oral and Maxillofacial Radiology, Postgraduate School of Kyunghee University, Seoul, Korea
Received June 11, 2019; Revised June 19, 2019; Accepted June 21, 2019.
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:This study aimed to develop a sonic vibratory-action toothbrush with 360° rotating head and examine plaque removal effect and gingival subside effect in the early-stage gingivitis in subjects using this toothbrush compared with subjects using a plane-type toothbrush.
Methods:Sixty adult volunteers aged 40-50 years were enrolled in the study participated with the compensation; they were divided into two groups, experimental group (n=30) using the sonic vibratory-action toothbrush with 360° rotating head and control group (n=30) using a plane-type bristle vibratory toothbrush, and observed for 2 weeks. Plaque was evaluated in both groups before the experiment and after 1, 2, and 4 weeks. A trained dentist and dental hygienist measured the simplified patient hygiene performance (S-PHP) index for the estimation of plaque removal effect and gingival index for the estimation of gingival health. Data were compared between experimental and control groups.
Results: On the basis of S-PHP index, dental plaque deposition was found to decrease from 2.91 to 2.08 points using the experimental toothbrush for 4 weeks and from 10.97 points (total periodontal index for 6 portions) to 7.97 points using the toothbrush for 4 weeks there was significant difference between experimental and control groups (p<0.05).
Conclusion:The use of a sonic vibratory-action toothbrush with 360° rotating head is recommended to improve dental plaque removal and promote gingival health.
Keywords : oral health, toothbrushing, sonic vibration, dental plaque
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June 2019, 15 (2)