287 - Prevalence and Dental Treatment Patterns for Amelogenesis Imperfecta and Dentinogenesis Imperfecta in South Korea.

The aim of this study was to determine the prevalence and evaluate the current status of dental treatment of Amelogenesis Imperfecta (AI) and Dentinogenesis Imperfecta (DI) in South Korea. This study analyzed number of patients, cost, visiting time and characteristics of the patients who were diagnosed with K00.50 (AI) and K00.51 (DI). The data was based on National Health Insurance Service (NHIS)-National Sample Cohort Database (2002 - 2015) and Jeonbuk National University (JBNU) Dental Hospital (2011 - 2020).

The NHIS data analysis showed prevalence of AI and DI were 11.6 and 2.4 per 100,000 people, respectively. The annual incidence of AI and DI for 2013 - 2015 were 2.2 and 0.5 per 100,000. There were no statistically significant differences regarding the number of visits, the reimbursable cost among AI, DI patients and others.

In the patient analysis of the JBNU dental hospital, proportion of the reimbursable and non-reimbursable cost for AI patients were 12.1% and 87.9%, while DI patients accounted for 18.6% and 81.4%.

Therefore, this study analyzed the prevalence and current status of dental treatment of AI and DI patients, and suggested the necessity of further study based on integrated data supplied from multiple institutions.