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Background <p>Molar incisor hypomineralisation (MIH) is a prevalent developmental enamel defect and has been associated with increased caries experience.</p> Aim <p>To determine caries experience and prevalence, and their relationship with the presence of MIH in schoolchildren from Pachuca, Mexico.</p> Methods <p>A cross-sectional study including 714 randomly selected participants aged 6 to 13&#xa0;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.</p> Results <p>Mean age was 8.8 ± 1.8&#xa0;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%) (<i>p</i> = 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; <i>p</i> = 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.</p> Conclusions <p>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.</p>

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

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  • 发表日期：

    2026年3月11日

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

摘要

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.