Jälevik B
Centre of Orthodontics and Paediatric Dentistry, S-581 85 Linköping, Sweden.
Eur Arch Paediatr Dent. 2010 Apr;11(2):59-64. doi: 10.1007/BF03262714.
This was to review the literature published, to point out shortcomings and to suggest areas in need of improvement concerning the diagnosis and prevalence of MIH.
A broad search of the PubMed database was conducted. Relevant papers published in English were identified after a review of their titles, abstracts or full reading of the papers. Papers were selected if the number of children with at least one first permanent molar affected by demarcated opacities could be deciphered. Targeted publications were critically assessed by the author concerning examination criteria, selection and character of the study groups, examiners' calibration and result presentation.
The initial search revealed 414 papers of which 24 met the inclusion criteria. A wide variation in defect prevalence (2.4 - 40.2 %) was reported. Cross comparison of the results of the various studies were difficult because of use of different indices and criteria, examination variability, methods of recording and different age groups.
Further standardization of study design and methods is needed to make the results comparable.
回顾已发表的文献，指出缺点，并就磨牙症的诊断和患病率提出需要改进的方面。
对PubMed数据库进行广泛检索。在对论文标题、摘要进行审查或全文阅读后，确定以英文发表的相关论文。如果能够解读至少一颗第一恒磨牙出现界限清晰的釉质混浊的儿童数量，则选择该论文。作者对目标出版物的检查标准、研究组的选择和特征、检查者的校准以及结果呈现进行了严格评估。
初步检索发现414篇论文，其中24篇符合纳入标准。报告的缺陷患病率差异很大（2.4%-40.2%）。由于使用了不同的指标和标准、检查变异性、记录方法以及不同的年龄组，各研究结果的交叉比较很困难。
需要进一步规范研究设计和方法，以使结果具有可比性。
