Santos Karina Kendelhy, Fonseca Patrícia Gomes, Ramos-Jorge Maria Letícia, Soares Maria Eliza da Consolação, Fernandes Izabella Barbosa
Universidade Federal dos Vales do Jequitinhonha e Mucuri, Faculdade de Ciências Biológicas e da Saúde, Departamento de Odontopediatria, Diamantina, Brasil.
Universidade Federal de Juiz de Fora, Instituto de Ciências da Vida, Departamento de Odontologia, Governador Valadares, MG, Brasil.
J Appl Oral Sci. 2025 Jun 27;33:e20240538. doi: 10.1590/1678-7757-2024-0538. eCollection 2025.
To evaluate whether the presence of molar-incisor hypomineralization (MIH) is associated with a greater number of decayed teeth in schoolchildren.
A cross-sectional study was conducted with a random sample of 347 children aged from seven to ten years in the Brazilian city of Diamantina. The International Caries Detection and Assessment System (ICDAS) criteria were used to determine the number of teeth with moderate/extensive caries (ICDAS codes 3-6). MIH was assessed according to the criteria of the European Academy of Paediatric Dentistry (EAPD). Sociodemographic data and data regarding children's habits were obtained via a questionnaire sent to parents/guardians. Descriptive analyses, Mann Whitney and Kruskal Wallis tests, and Poisson regression were performed.
The prevalence of MIH was 20.5% and that of moderate/extensive caries was 39.2%. The mean number of teeth with moderate/extensive caries was 1.80 (SD±2.67). The mean number of decayed permanent teeth was 0.69 (SD=1.21), and the mean number of decayed primary teeth was 1.11 (SD=1.89). The number of teeth with moderate/extensive caries was associated with the presence of MIH in children (PR=1.45; 95% CI=1.03-2.04; p=0.031). Furthermore, the number of teeth with moderate/extensive caries was associated with lower monthly family income, high frequency of sugar consumption, and visible plaque (p<0.05).
The presence of MIH is associated with a greater number of decayed teeth in schoolchildren.
This study suggests that children with MIH are at higher risk of developing caries, emphasizing the importance of specific preventive care and early treatments for this condition. This can influence clinical practices, public health policies, and parental education.
评估磨牙-切牙矿化不全（MIH）的存在是否与学龄儿童更多的龋齿数量相关。
在巴西迪亚曼蒂纳市对347名7至10岁儿童进行随机抽样，开展横断面研究。采用国际龋病检测与评估系统（ICDAS）标准确定中度/重度龋齿（ICDAS编码3 - 6）的牙齿数量。根据欧洲儿童牙科学会（EAPD）的标准评估MIH。通过向家长/监护人发放问卷获取社会人口统计学数据和儿童习惯数据。进行描述性分析、曼-惠特尼检验和克鲁斯卡尔-沃利斯检验以及泊松回归分析。
MIH的患病率为20.5%，中度/重度龋齿的患病率为39.2%。中度/重度龋齿的平均牙齿数量为1.80（标准差±2.67）。恒牙龋齿的平均数量为0.69（标准差 = 1.21），乳牙龋齿的平均数量为1.11（标准差 = 1.89）。儿童中度/重度龋齿的牙齿数量与MIH的存在相关（PR = 1.45；95%置信区间 = 1.03 - 2.04；p = 0.031）。此外，中度/重度龋齿的牙齿数量与家庭月收入较低、高糖消费频率以及可见牙菌斑相关（p < 0.05）。
MIH的存在与学龄儿童更多的龋齿数量相关。
本研究表明，患有MIH的儿童患龋齿的风险更高，强调了针对这种情况进行特定预防护理和早期治疗的重要性。这可能会影响临床实践、公共卫生政策和家长教育。
