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Comparison of the recognition of toothbrush replacement time according to oral health knowledge of university students in some regions of Korea

  • Journal of Korean society of Dental Hygiene
  • Abbr : J Korean Soc Dent Hyg
  • 2025, 25(2), pp.171~179
  • DOI : 10.13065/jksdh.2025.25.2.9
  • Publisher : Korean Society of Dental Hygiene
  • Research Area : Medicine and Pharmacy > Dentistry
  • Received : January 19, 2025
  • Accepted : April 11, 2025
  • Published : April 30, 2025

위승연 1 김예훈 1 오한봄 1 유가은 1 이유하 1 오가현 1 박지원 1 김영석 1 정윤숙 1

1경북대학교 과학기술대학 치위생학과

Accredited

ABSTRACT

Objectives: This study investigated the awareness of appropriate toothbrush replacement timing and oral health knowledge among university students in Korea. Methods: 198 university students participated in online and on-site surveys. The collected data were analyzed using the R program, with a significance level of 0.05. Logistic regression analysis was performed using sex and age as independent variables. Results: Students with a higher level of oral health knowledge were significantly more likely to replace their toothbrush at the recommended time than those with a lower level of knowledge (OR: 2.115, 95% CI: 1.021-4.385, p=0.028). Conclusions: Higher oral health knowledge was significantly associated with more frequent toothbrush replacements at the recommended time. Oral health education should be expanded to promote proper toothbrush replacement habits and improve oral health management, particularly for those with limited access to health information.

Citation status

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