The enamel defects of Molar-Incisor Hypomineralisation (MIH) share clinical characteristics with hypomineralised second primary molars (HSPM) and hypomineralised primary canines (HPC). The main objective of this study is to determine the prevalence of these entities in a population of patients in a hospital dentistry service. The secondary objectives are to know the number and distribution of lesions, classify them according to their degree of severity and to know which dental surfaces are most affected.

中文翻译：

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第二乳磨牙和乳牙的矿化不足：在医院儿科牙科服务处就诊的 153 名患者中病变的患病率和描述。

磨牙切牙矿化不足 (MIH) 的牙釉质缺陷与矿化不足的第二乳磨牙 (HSPM) 和低矿化的乳牙 (HPC) 具有共同的临床特征。本研究的主要目的是确定这些实体在医院牙科服务的患者群体中的患病率。次要目标是了解病变的数量和分布，根据其严重程度对其进行分类，并了解哪些牙齿表面受影响最大。