Document Type: Original Article
Assistant Professor, Pathology and Stem Cell Research Center, Kerman University of Medical Sciences, Kerman, Iran
Resident, Department of Pediatric Dentistry, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
Dentist, Private Practice, Kerman, Iran
Associate Professor, Department of Oral and Maxillofacial Radiology, Social Determinants on Oral Health Research Center, Kerman University of Medical Sciences, Kerman, Iran
Assistant Professor, Department of Pediatric Dentistry, Oral and Dental Diseases Research Center, Kerman University of Medical Sciences, Kerman, Iran Sciences, Kerman, Iran
Background and Aim: Molar incisor hypomineralization (MIH) is known as a developmental defect in enamel structure and shape seen in one to four permanent first molar teeth, usually affecting incisors. MIH can also influence children’s self-confidence and oral health-related quality of life (OHRQoL), as an index to assess the effect of oral and orofacial diseases on individuals’ health status, mood, and sense- quality; which are specifically measured in children and teenagers through the Child Perceptions Questionnaires (CPQ8-10 or CPQ11-14 ). Therefore, this study goaled to examine the prevalence of MIH and the effects of MIH on OHRQoL during mixed dentition period in Kerman, Iran.
Methods: This descriptive-analytical cross-sectional study was performed on a total number of 2507 children aged 8-12 years in public schools selected using cluster random sampling method. Clinical examination was correspondingly done under day light with a dental probe and a disposable dental mirror by a calibrated dental student. The data were coded and imported into the IBM SPSS Statistics (version 20) wherein Chi-square test, independent t-test, and one-way analysis of variance (ANOVA) were employed for analyses. The significance level was also set at 0.05.
Results: A total of 129 (5.14%) students were diagnosed with MIH. The mean score of OHRQoL according to the standard CPQ8-10 or CPQ11-14 in children with MIH in this study was 19.9±15.1, ranged from 0 to 82. Moreover, girls suffering from MIH had lower OHRQoL compared with boys (p =0.006).
Conclusion: It was concluded that MIH had a negative impact on OHRQoL in children.