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J Korean Acad Pediatr Dent. 2010;37(2): 179-185.
THE PREVALENCE OF MOLAR INCISOR HYPOMINERALIZATION AND STATUS OF FIRST MOLARS IN PRIMARY SCHOOL CHILDREN
Jong-Hyun Shin, Ul-Jin An, Shin Kim, Tae-Sung Jeong
Department of Pediatric Dentistry, School of Dentistry, Pusan National University
Corresponding Author: Shin Kim ,Tel: 055-360-5180, Email: shinkim@pusan.ac.kr
Received: January 11, 2010;  Accepted: April 19, 2010.
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ABSTRACT
Molar Incisor Hypomineralization(MIH) have recently gained intensive research interests and various clinical trials. Most prevalence, etiology, treatment studies in MIH were carried out in the European countries, and data from the Korean were seldom. This study aimed to investigate the prevalence of MIH and the status of dental caries and treatment on the first permanent molars in primary school children. For this study, 1,344 primary school students in Busan and Ulsan cities were examined directly the permanent incisors and first molars. The results of the survey were as follows: 81 MIH cases were identified among 1,344 cases. The prevalence of MIH in this group of children was 6.0%. Children with MIH showed a significantly higher DMFT value for permanent teeth than children without MIH. The mean number of decayed, missed, and filled in 1st permanent molars(DMFT index) was 1.17. The rate of children with restoration on 1st permanent molar was 13.6% and the sequence of restoration materials was as follows : composite resin, amalgam, gold inlay.
Keywords: Molar incisor hypomineralization | DMFT | Permanent first molar
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