J Korean Acad Pediatr Dent.  2025 May;52(2):181-192. 10.5933/JKAPD.2025.52.2.181.

Efficacy of Automatic Suction-Type Sonic Toothbrush and Manual Toothbrush in Preschool Children: A Randomized, Controlled Crossover Pilot Study

• Lee SB
• Chae YK
• Kim MS
• Nam OH
• Lee HS
• Choi SC
• Lee KE

• KMID: 2567995
• DOI: http://doi.org/10.5933/JKAPD.2025.52.2.181

Abstract

This study investigated the plaque removal efficacy of a suction-type sonic toothbrush compared to a conventional manual toothbrush in preschool children aged 30 to 59 months. Using a randomized, double-blind, crossover design with a 2-week washout period, 20 pediatric participants were allocated to two study phases, each using either the suction-type sonic toothbrush or the manual toothbrush with caregiver assistance. The plaque removal effectiveness was assessed through the Silness and Löe plaque index and quantitative light-induced fluorescence values, including ΔR30 and ΔR120 indicators of plaque index. The result showed no statistically significant differences in plaque removal efficacy between the two toothbrushes, although both showed similar improvements. Caregiver feedback revealed high acceptability of the suction-type sonic toothbrush due to its convenience and engaging features, such as a light and suction function, which enhanced the tooth brushing experience. Although limited by the short follow-up period and small sample size, the findings suggest that suction-type sonic toothbrushes may offer practical benefits for young children requiring caregiver assistance.

Keyword

Suction-type sonic toothbrush; Pediatric oral hygiene; Plaque removal efficacy; Quantitative light-induced fluorescence