Epidemiological study of molar incisor hypomineralization in primary school students in Soozhow China
SUI Wen
WU Hai-yan
YUAN Jia-lu
YAO Hong-ying
HONG Yong-long
Abstract：AIM:To investigate the prevalence and putative contributing factors of molar incisor hypomineralisation (MIH) in primary school students in Soozhou China.METHODS:1,145 of 7 to 12-year-old primary school students were included for this study and were divided into 3 groups according to age (7-8,9-10 and 11-12 years).The European Academy of Pediatric Dentistry (EAPD) criteria were followed for MIH diagnosis.The structured questionnaire was collected.Statistical analysis of the data was performed using SPSS 13.0 and Kruskal-Wallis Test.RESULTS:The overall MIH prevalence rate was 4.45％ with no gender difference.The primary clinical manifestation was demarcated opacity only.The prevalence rate in 7 to 8 year-old group(6.25％) was significantly higher than that in 9 to 10 year-old group (2.53 ％) and 11 to 12 year-old group (3.31％) (P ＜ 0.05).The affected teeth were usually symmetrical.MIH prevalence was not significantly different (P ＞ 0.05) among the 4 quadrants of the teeth.MIH occurrence was significantly related with the children's history of otitis media,tonsillitis and antibiotic use in their first 3 years of life.MIH had no correlation with the children's family background,feeding methods and the physical conditions of their mothers during pregnancy.CONCLUSION:The MIH prevalence rate in school age children in Soozhou appears lower than that reported for other countries.The presence of MIH is associated with the children's medical history and the use of antibiotics in their first 3 years of life.
Keywords：molar incisor hypomineralisationprevalencecontributing factors
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 103-107 )