search for


Effects of Professional Toothbrushing and Instruction in the Elderly: A Randomized Trial
J Dent Hyg Sci 2018;18:305-11
Published online October 31, 2018;
© 2018 Korean Society of Dental Hygiene Science.

Eun-Deok Jo1, Eun-Sol Kim2, Hae-Kyung Hong3, Gyeong-Soon Han1,2,†

1Department of Dental Hygiene, College of Health Science, Gachon University, Incheon 21936,
2Department of Health Science, Graduate School of Gachon University, Incheon 21936,
3Department of Dental Hygiene, Kyungdong University, Wonju 26495, Korea
Correspondence to: Gyeong-Soon Han
Department of Dental Hygiene, College of Health Science, Gachon University, 191 Hambangmoe-ro, Yeonsu-gu, Incheon 21936, Korea
Tel: +82-32-820-4372, Fax: +82-32-820-4370, E-mail:
Received August 27, 2018; Revised September 29, 2018; Accepted October 1, 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.
The purpose of this study was to identify the effect of providing toothbrushing by professionals as part of oral hygiene education for the elderly. We randomly visited 12 centers in the metropolitan city and analyzed the data of 114 participants among 310 early registrants aged >65 years, who participated in the study at all 3 time points. The subjects were categorized into an experimental group (odd-numbered visits) and a control group (even-numbered visits). Oral hygiene practices were provided for both experimental and control groups, but professional toothbrushing was performed in a different manner in the experimental group. Differences in plaque index (PI) according to the subjects’ general characteristics and oral health status were assessed using the t-test, and the effect of PI difference between the experimental and control groups was assessed by repeated measure two-way analysis of variance. A stepwise multiple regression analysis was used to analyze factors affecting the PI. At baseline, the mean overall PI was 61.82. In both experimental and control groups, the PI significantly reduced from the baseline (p<0.01). At 5 weeks, the experimental group showed a decrease of 27.16 points from the baseline, and the 10-week PI was similar to the 5-week PI. The control group showed a decrease of 14.87 points from the baseline, and the PI increased by 5.74 points at 10 weeks. PI-related factors were gender and self-xerostomia. The PI was lower in the female group and the group with self- xerostomia (p<0.01). It is important to select an appropriate method to educate elderly subjects on proper removal of dental plaque and to habituate correct behavior, which requires inclusion of a direct toothbrushing intervention by a specialist.
Keywords : Dental plaque, Elderly, Professional toothbrushing

October 2018, 18 (5)
Full Text(PDF) Free

Cited By Articles

Funding Information