Americano Gabriela C A, Jorge Roberta C, Moliterno Luiz Flávio, Soviero Vera M
Department of Preventive and Community Dentistry, School of Dentistry, Rio de Janeiro State University, Rio de Janeiro, Brazil.
Pediatr Dent. 2016 Oct 15;38(5):419-424.
This case-control study aimed to investigate the association between molar incisor hypomineralization (MIH) and caries experience in seven- to 11-year-old children.
Children seen in a pediatric dental clinic in 2011 to 2012 and born in 2002, 2003, or 2004 were considered eligible. Children with decayed, missing, or filled teeth in the permanent dentition (DMF-T) were allocated to the case group, and those with no DMF-T were allocated to the control group. An examiner assessed MIH according to European Academy of Pediatric Dentistry criteria and caries according to World Health Organization criteria. The odds ratio was calculated to evaluate the association between MIH and caries; the chi-square test was used to analyze the association between categorical variables, and the Mann-Whitney test was used to compare means.
The final sample comprised 57 children in the case group and 98 in the control group. The groups were similar in relation to age, gender, and caries experience in the primary dentition. MIH children were 5.89 (95 percent confidence interval equals 2.69 to 12.86; P<0.05) times more likely to have a DMF-T greater than zero.
Children with decayed, missing, or filled permanent teeth are more likely to have MIH.
本病例对照研究旨在调查7至11岁儿童中磨牙切牙矿化不全（MIH）与龋病经历之间的关联。
将2011年至2012年在一家儿科牙科诊所就诊且出生于2002年、2003年或2004年的儿童视为符合条件。恒牙列中有龋坏、缺失或充填牙（DMF-T）的儿童被分配到病例组，无DMF-T的儿童被分配到对照组。一名检查者根据欧洲儿科牙科学会标准评估MIH，根据世界卫生组织标准评估龋病。计算比值比以评估MIH与龋病之间的关联；使用卡方检验分析分类变量之间的关联，使用曼-惠特尼检验比较均值。
最终样本包括病例组的57名儿童和对照组的98名儿童。两组在年龄、性别和乳牙列龋病经历方面相似。MIH儿童患DMF-T大于零的可能性是其他儿童的5.89倍（95%置信区间为2.69至12.86；P<0.05）。
恒牙有龋坏、缺失或充填的儿童更易患MIH。
