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Epidemiologic study of molar‐incisor hypomineralization in 8‐year‐old S panish children
Author(s) -
GarciaMargarit Miriam,
CataláPizarro Monserrat,
MontielCompany José María,
AlmerichSilla José Manuel
Publication year - 2014
Publication title -
international journal of paediatric dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.183
H-Index - 62
eISSN - 1365-263X
pISSN - 0960-7439
DOI - 10.1111/ipd.12020
Subject(s) - medicine , molar , dentistry , incisor , orthodontics
Aim To find the prevalence of molar‐incisor hypomineralization ( MIH ) in a random sample of Spanish children, and to investigate the gender influence, distribution of defects, the treatment need associated and the relation between this disorder and dental caries. Design A cross‐sectional study was carried out to determine MIH and caries prevalence in a randomly selected sample of 840 children from the 8‐year‐old population of the V alencia region of S pain. The examinations were carried out in the children's schools by one examiner who had previously been calibrated with the MIH diagnostic criteria of the E uropean A cademy of P aediatric D entistry ( EAPD ). Results The percentage of children with MIH was 21.8% (95% CI 19.1–24.7), with a mean 3.5 teeth affected (2.4 molars and 1.1 incisors) been the maxillary molars the most affected. No gender differences were found. Of those with MIH , 56.8% presented lesions in both molars and incisors Children with MIH needed significantly more urgent and non‐urgent treatment than those without MIH (chi‐squared test P ‐value < 0.005). Both caries indices were significantly higher (Student's t ‐test P ‐value < 0.05) in the children with MIH than in the healthy children: the DMFT scores were 0.513 and 0.237 and the DMFS scores 1.20 and 0.79, respectively. Conclusions Molar‐incisor hypomineralization prevalence is high in the child population of this region and equally affects boys and girls. The condition increases significantly the need of treatment of affected children. A significant association with dental caries was observed.