Ortega Luengo, SaraFeijoo García, GonzaloGallardo López, Nuria EstherCaleya Zambrano, Antonia MaríaMiegimolle Herrero, Mónica2024-10-242024-10-242024-02-13Ortega-Luengo S, Feijóo-Garcia G, Miegimolle-Herrero M, Gallardo-López NE, Caleya-Zambrano AM. Prevalence and clinical presentation of molar incisor hypomineralisation among a population of children in the community of Madrid. BMC Oral Health. 2024 Feb 13;24(1):229.-1472-683110.1186/s12903-024-04003-4https://hdl.handle.net/20.500.14352/109380Objective The main objective of this study was to estimate the prevalence of molar incisor hypomineralisation (MIH), an alteration of tooth enamel with an estimated worldwide prevalence rate of 14%, among children using primary care services in the Community of Madrid, Spain. Materials and methods This was a descriptive, cross-sectional and multicentre study. After calibrating all researchers and following the diagnostic criteria of the European Academy of Paediatric Dentistry (EAPD), children aged between 8 and 16 years who were users of the dental services at 8 primary oral health units of the Madrid Health Service (SERMAS) were included. The children underwent a dental examination, and the parents were asked to complete a questionnaire. Results The prevalence of MIH was 28.63% (CI: 24.61–32.65%). The age cohorts most affected by MIH were 8 years (21.4%) and 11 years (20.7%). The presence of MIH was greater among girls (85; 60.71%) than among boys (55; 39.28%). The mean number of affected teeth per patient was 4.46 ± 2.8. The most frequently affected molar was the upper right first molar (74.3%), and the upper left central incisor was the most affected incisor (37.85%). Opacities were the defects most frequently recorded (63.57%). Conclusions The prevalence of MIH in this study is the highest of all relevant studies conducted in Spain.engAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/journal articlehttps//doi.org/10.1186/s12903-024-04003-438350956https://bmcoralhealth.biomedcentral.com/open access616.314-053.2Molar incisor hypomineralization (MIH)Enamel developmental defectHypomineralised second primary molars (HSPM)Oral Health UnitsPediatric DentistryOdontología infantil3299 Otras Especialidades Médicas