Clinical risk factors influencing dental developmental disturbances in childhood cancer survivors

Chung Min Kang, Seung Min Hahn, Hyo Sun Kim, Chuhl Joo Lyu, Jae Ho Lee, Jinae Lee, Jung Woo Han

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


Purpose Although studies regarding dental developmental disturbances after childhood cancer treatment have increased, they have many limitations. Studies analyzing the significance of independent clinical risk factors with regard to the dental health status are also rare. We aimed to investigate the risk factors for dental developmental disturbances, particularly severe disturbances, in childhood cancer survivors (CCS). Materials and Methods Oral examinations and retrospective reviews of medical and panoramic radiographs were performed for 196 CCS (mean age, 15.6 years). Cancer type, age at diagnosis, treatment modality, type and accumulated dose of administered drugs, and dose and site of radiation were recorded. Dental developmental disturbances were diagnosed using panoramic radiographs and graded for severity according to the Modified Dental Defect Index (MDDI). Descriptive statistics and multivariate analyses were performed to determine the association between dental abnormalities and clinical factors. Results In total, 109 CCS (55.6%) exhibited at least one dental anomaly, and the median value of MDDI was 2.5. Microdontia (30.6%) was the most prevalent anomaly, followed by tooth agenesis (20.4%), V-shaped roots (14.8%), and taurodontism (10.2%). Multivariate analysis revealed that a young age at diagnosis (≤ 3 years), a history of hematopoietic stem cell transplantation, the use of multiple classes of chemotherapeutic agents (≥ 4 classes), and the use of heavy metal agents were significant risk factors for severe dental disturbances. Conclusion CCS with any of the above risk factors for severe developmental disturbances should be comprehensively followed up to minimize adverse consequences to their dental development and preserve their future dental health.

Original languageEnglish
Pages (from-to)926-935
Number of pages10
JournalCancer Research and Treatment
Issue number3
Publication statusPublished - 2018 Jul 1

Bibliographical note

Publisher Copyright:
©2018 by the Korean Cancer Association.

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research


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