Prevalence and aetiology of Molar-Incisor Hypomineralisation among children aged 8-10 years in Tirana, Albania

Authors:

ABSTRACT

Aim

Molar incisor hypomineralisation (MIH) describes the clinical appearance of enamel hypomineralisation of systemic
origin affecting one or more permanent first molars (PFMs) that are frequently associated with affected incisors. The aim of this study
was to investigate the prevalence and aetiology of MIH in children living in Tirana, Albania.

Methods

Design: The
study was conducted at the Department of Paediatric and Preventive Dentistry, Faculty of Dental Medicine, and Tirana Dental Public
Health Service. A total of 1,575 school children aged 8-10 years were examined by 7 calibrated examiners (dentists) (kappa: 0.86). The
Weerheijm criteria were used for the diagnosis of demarcated opacities, post-eruption breakdown, atypical restorations, and extracted
PFMs due to MIH.

Results

Prevalence of MIH was found to be 14 (n227). In the 227 children with MIH, tooth 36
was the most affected PFM, and tooth 46 the least affected. Tooth 21 was the most affected incisor and tooth 32 the least affected
incisor by MIH. MIH(+) children had significanly more childhood diseases in the first 3 years of life (p0.006). Among the children
who used antibiotics, MIH(+) cases were 1.41 (1.06-1.87) times higher than in children who did not usedantibiotics, MIH(-) cases.

Conclusion

MIH was found to be common among 8-10 year-old Tirana children.

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