Prevalence of delayed tooth development and its relation to tooth agenesis in Korean children

Min Kyoung Park, Min Kyung Shin, Seong Oh Kim, Hyo Seol Lee, Jae Ho Lee, Han Sung Jung, Je Seon Song

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Objective The aim of this study was to investigate the epidemiology of delayed tooth development (DTD) and the link between DTD and tooth agenesis (TA). Design The dental maturity of all of the developing permanent teeth of 4611 children (2417 males and 2194 females) was evaluated from panoramic radiographs. The prevalence of DTD and TA was analyzed, and gender difference for DTS and TA was investigated. The correlation of DTD and TA was investigated in intra-fields and inter-fields. Results The total prevalence of DTD among the 4611 children was 3.40%. The maxillary second premolar was the most frequently delayed tooth (1.02%), followed by the maxillary second molar (0.88%) and the mandibular second premolar (0.74%). DTD significantly correlated with TA in both intra-fields and inter-fields (p < 0.05). Conclusions The field of delayed development exhibited a significant correlation with that of TA.

Original languageEnglish
Pages (from-to)243-247
Number of pages5
JournalArchives of Oral Biology
Publication statusPublished - 2017 Jan 1

Bibliographical note

Funding Information:
This study was supported by a faculty research grant of Yonsei University College of Dentistry for 2016 (#6-2016-0134).

Publisher Copyright:
© 2016 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Otorhinolaryngology
  • Dentistry(all)
  • Cell Biology


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