Sosa-Soto Joselyn, Padrón-Covarrubias Ana Isabel, Márquez-Preciado Raúl, Ruiz-Rodríguez Socorro, Pozos-Guillén Amaury, Pedroza-Uribe Isaac Murisi, Bayardo-González Rubén Alberto, Garrocho-Rangel Arturo
Paediatric Dentistry Postgraduate Program, Faculty of Dentistry, San Luis Potosi University, San Luis Potosi, Mexico.
Basic Sciences Laboratory, Faculty of Dentistry, San Luis Potosi University, San Luis Potosi, Mexico.
J Public Health Dent. 2022 Jan;82(1):3-10. doi: 10.1111/jphd.12446. Epub 2021 Feb 7.
To estimate the prevalence and severity of molar incisor hypomineralization (MIH) in 8 years old children living in an endemic fluorosis area.
MIH prevalence rate was determined from a study sample comprising 613 participants. They were recruited from 11 urban public schools with similar socio-economic status. Oral evaluations were performed and diagnosed MIH teeth were classified under Ghanim et al.'s criteria. Statistical descriptive and comparative analyzes were carried out.
First permanent molars were the tooth group most affected, followed by the upper central incisors, lower central incisors, lower lateral incisors, and upper lateral incisors. There was no significant statistical difference by gender and by maxillary/mandible arches (P = 0.82 and 0.26, respectively). The frequency of MIH was more in molars compared to incisors (P < 0.02).
The MIH prevalence in this study was 12.4 percent. According to the MIH severity, degree 2 was the most frequently detected (76.4 percent).
评估生活在地方性氟中毒地区的8岁儿童中磨牙-切牙矿化不全（MIH）的患病率及严重程度。
从613名参与者组成的研究样本中确定MIH患病率。他们来自11所社会经济地位相似的城市公立学校。进行了口腔评估，并根据加尼姆等人的标准对诊断为MIH的牙齿进行分类。进行了统计描述性和比较性分析。
第一恒磨牙是受影响最严重的牙组，其次是上颌中切牙、下颌中切牙、下颌侧切牙和上颌侧切牙。按性别和上颌/下颌牙弓分类无显著统计学差异（P分别为0.82和0.26）。磨牙的MIH发生率高于切牙（P<0.02）。
本研究中MIH的患病率为12.4%。根据MIH严重程度，2度最为常见（76.4%）。
