Journal of the Korean Academy of Pediatric Dentistry 2005;32(3):569-575.
Published online August 31, 2005.
COMPARISON OF PLAQUE REMOVAL EFFICIENCY OF SONIC AND MANUAL TOOTHBRUSH IN YOUNG ORTHODONTIC PATIENTS
Ji-Youn Kim, Cheol-Hwan Shin, Ki-Tae Park
Department of Pediatric Dentistry, Samsung Medical Center, Sunkyunkwan University School of Medicine 
소아.청소년기 교정 환자의 음파 칫솔과 일반 칫솔의 치태 제거 효과 비교
김지연, 신철환, 박기태
성균관대학교 의과대학 삼성서울병원 치과진료부 소아치과학교실
Correspondence:  Ki-Tae Park,  Tel: 02-3410-2426, Email: park2426@samsung.smc.co.kr
Abstract
The aim of this study was to compare the efficiency of sonic and manual toothbrush in decreasing plaque accumulation in young orthodontic patients. Twenty one healthy orthodontic patients attending department of pediatric dentistry at Samsung Medical Center were chosen for the study. The subjects were randomly assigned to either sonic or manual toothbrush and instructed to brush for 2 minutes. Plaque score was assessed with the modified Visible Plaque Index (VPI) before and after brushing. Each brush was repeated twice. A mean plaque reduction of sonic toothbrush was 61.79%(±7.95) compared to 69.19%(±10.08) of manual toothbrush(p<0.05). With the sonic toothbrush, male presented a mean plaque reduction of 63.07%($±8.64) while female presented 60.39%(±7.30). For manual toothbrush, male presented 69.33%(±10.14) and female presented 69.03%(±10.55) reduction of plaque accumulation(p>0.05). There was no statistically significant correlation between age and plaque removal efficacy in this study(p>0.05). Manual toothbrush was significantly more efficient in removing plaque than the sonic toothbrush in young fixed orthodontic patients.
Key Words: Sonic toothbrush, Manual toothbrush, Fixed orthodontic appliance, Plaque index
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