Journal of Korean Academy of Oral Health

The Korean Academy of Preventive Dentistry and Oral Health (대한예방치과·구강보건학회)
권호 표지

A study of manual toothbrush replacement cycle for dental Hygiene school female students

일부 치위생학과 여학생의 수동칫솔 교환주기에 대한 연구

  • Shin, Sun-Jung (Department of Dental Hygiene, Wonju College of Medicine, Yonsei University) ;
  • Kim, Hee-Kyoung (Department of Preventive and Public Health Dentistry, College of Dentistry, Gangneung-Wonju National University and Research Institute of Oral Science) ;
  • Kim, Hae-Sun (Department of Dental Hygiene, College of Health Science, Eulji University) ;
  • Kim, Eun-Ju (Department of Dental Hygiene, DongNam Health College) ;
  • Noh, Hie-Jin (Department of Dental Hygiene, College of Health Science, Eulji University)
  • 신선정 (연세대학교 원주의과대학 치위생학과) ;
  • 김희경 (강릉원주대학교 치과대학 예방치학교실 및 구강과학연구소) ;
  • 김해선 (을지대학교 치위생학과) ;
  • 김은주 (동남보건대학 치위생과) ;
  • 노희진 (을지대학교 치위생학과)
  • Received : 2010.07.30
  • Accepted : 2010.10.08
  • Published : 2010.12.30
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Abstract

Objectives. It is generally recommended that toothbrushes should be replaced after three-months use in order to maintain efficacy of plaque remove. This study was aimed to investigate the recommended replacement cycle of manual toothbrush that is proper for Korean people. Methods. To investigate manual toothbrush change cycle, the relationship between toothbrush wear and plaque removal ability was assessed. The subjects were instructed brush their whole teeth 3 times a day with rolling method. Patient Hygiene Performance Index and Plaque Free Surface Rate (modified Plaque Free Score for this study) were used for plaque removal ability. Wear index and wear rate were used for manual toothbrush wear and splaying level at first, fourth and eighth week from the start. Results. Wear index (0.280, 0.442, 0.853) and wear rate (0.333, 1.273, 1.769), both were significantly increased, depend on time of use for manual toothbrush at first, fourth, and eighth week respectively (p<0.001). Plaque removal ability were found to exhibit decreasing with increasing the wear index. Conclusions. The manual toothbrush wear Index was bigger than preceded studies, depend on period of use. As a result, guidelines on replacement of manual toothbrush for Korean should be recommended with considered our own tooth brushing habits.

Keywords

Acknowledgement

Supported by : 대한치과위생사협회

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