Prevalence of Molar-Incisor Hypomineralisation in an Emerging Community, and a Possible Correlation with Caries, Fluorosis and Socioeconomic Status.
PURPOSE
To determine the prevalence of molar-incisor hypomineralisation (MIH) in 7- to 9-year-old (±1 year) schoolchildren living in Dubai, United Arab Emirates, and to find a possible association with caries, fluorosis and socioeconomic status.


MATERIALS AND METHODS
In this cross-sectional study, a representative sample of 779 children with an age of 7 to 9 years ±1 year in primary schools in Dubai were randomly selected and examined by one investigator who had previously been trained and calibrated with the diagnostic criteria of European Academy of Paediatric Dentistry (EAPD) for MIH, caries diagnostic criteria of the World Health Organization (WHO) and Dean's criteria for fluorosis.


RESULTS
The prevalence of MIH in Dubai was 7.57% and was almost identical for both genders (female 7.57% and male 7.58%). The caries index was high (2.41±1.7). Children with MIH in Dubai exhibited statistically significantly higher DMFT values than did children without MIH (mean 3.5 ± 1.7 vs 2.3 ± 1.7; p < 0.001). The prevalence of fluorosis was 10.9% with no statistically significant age or gender differences.


CONCLUSION
The prevalence of MIH in Dubai is low. However, the caries and fluorosis values are much higher, which calls for strengthening caries-preventive efforts.
['Ahmad|Somayeh H|SH|', 'Petrou|Marina Agathi|MA|', 'Alhumrani|Azza|A|', 'Hashim|Raghad|R|', 'Splieth|Christian|C|']
D002648:Child D003430:Cross-Sectional Studies D003744:Dental Enamel Hypoplasia D005260:Female D006801:Humans D007180:Incisor D008297:Male D008963:Molar D015995:Prevalence D012923:Social Class
molar-incisor hypomineralisation caries fluorosis socioeconomic status