J Korean Acad Oral Health.  2023 Sep;47(3):125-131. 10.11149/jkaoh.2023.47.3.125.

Classification of dental caries pattern in 12-year-old Korean adolescents by multivariate analysis

  • 1Department of Dental Hygiene, Yeoju Institute of Technology, Yeoju, Korea
  • 2Department of Preventive and Public Health Dentistry, College of Dentistry, Institute of BiomaterialsㆍImplant (WBMI) and Institute of Wonkwang Dental Research, Wonkwang University, Iksan, Korea


The purpose of this study was to analyze the pattern of dental caries in 12-year-old Korean adolescents through multivariate analysis.
This study used raw data from the 2015 Korea Children’s Oral Health Survey. The study participants were 12-year-old adolescents. A total of 27,291 people participated in the questionnaire and oral test. The statistical analysis methods used were multidimensional scaling, cluster analysis, and factor analysis.
The result was derived after analyzing the dental caries pattern of teeth and tooth surface by multi-dimensional scaling method, cluster analysis method, and factor analysis. Morphologically homologous teeth were gathered to form clusters. Caries occurrence showed a more similar caries experience pattern when the types of tooth surfaces, such as occlusal and occlusal surfaces, were the same than when they were different.
Epidemiological data on the pattern of dental caries in 12-year-old adolescents can be used as basic data to create evidence-based dental caries management plans.


Adolescents; Dental caries; Epidemiology; Pattern; Permanent teeth


  • Fig. 1 Patterns of dental caries by multi-dimensional scale analysis. T: tooth.

  • Fig. 2 Patterns of dental caries experience on tooth surface by multi-dimensional scale analysis. C: occlusal surface, BL: buccal&lingual surface, MSD: mesial&distal surface.

  • Fig. 3 Patterns of dental caries by cluster analysis.

  • Fig. 4 Patterns of dental caries experience on tooth surface by cluster analysis.



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