Work

The association of caries prevalence and experience in relation with molar incisor hypomineralisation and its associated factors in Mexican schoolchildren: a cross-sectional study

Year: 2026

Type: article

Abstract: BACKGROUND: Molar incisor hypomineralisation (MIH) is a prevalent developmental enamel defect and has been associated with increased caries experience. AIM: To determine caries experience and prevalence, and their relationship with the presence of MIH in schoolchildren from Pachuca, Mexico. METHODS: A cross-sectional study including 714 randomly selected participants aged 6 to 13 years. Clinical examination was undertaken and carious lesions and MIH were classified according to ICDAS II and EAPD MIH-criteria, respectively. Questionnaires collected sociodemographic, socioeconomic, and health information. RESULTS: Mean age was 8.8 ± 1.8 years; mean caries experience for cavitated lesions (ICDAS 5-6) was 2.1 ± 2.5 in primary dentition and 0.2 ± 0.7 in permanent dentition, resulting in a combined mean (dmft + DMFT) of 2.2 ± 2.6. Caries prevalence (ICDAS ≥ 2) was 78% in primary and 46.7% in permanent teeth. Eighty-eight children (12.3%) had MIH, of whom 54 (61.4%) had cavitated lesions (ICDAS 5-6) in permanent teeth, higher than in children without MIH (7%) (p = 0.0001). Mean caries experience (ICDAS 5-6) was significantly greater in the MIH group (1.25 ± 1.34) compared to the non-MIH group (0.10 ± 0.45; p = 0.0001). Variables statistically significantly associated with caries prevalence and experience included the child's age, oral hygiene, MIH presence and soy extract ingestion; and parental perception of the child's general appearance. CONCLUSIONS: Several variables, including MIH, child age, oral hygiene and soy extract ingestion, and parental perception of their child's general appearance, were associated with higher caries prevalence and experience.

Source: European Archives of Paediatric Dentistry

DOI: 10.1007/s40368-026-01194-y

Authors: M. Rivera, L. Karakowsky, C. E. Medina-Solís, A. P. Pontigo-Loyola, D. J. Manton

Institutions: Universidad Autónoma del Estado de Hidalgo, University Medical Center Groningen, Technological University of Mexico, Universidad Autónoma del Estado de México

Language: English

Topic: Dental Health and Care Utilization

Subfield: Periodontics

Field: Dentistry

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: hybrid

Estimated APC paid: $2,590