Molar incisor hypomineralization in Hong Kong Chinese children
Molar incisor hypomineralization in Hong Kong Chinese children
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DOI：
10.1111/j.1365-263x.2008.00927.x
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发表时间：
2008-09-01
影响因子：
3.8
通讯作者：
Chu, Vanessa
中科院分区：
文献类型：
--
作者：
Cho, Shiu-Yin;Ki, Yung;Chu, Vanessa
背景。磨牙切牙低矿化（MIH）的患病率研究大多在欧洲国家进行，而东亚人群的数据缺乏。本研究旨在调查香港华人儿童MIH患病率。自2006年起，在一所学校牙科诊所的例行牙科检查中纳入了患有MIH的牙齿图表。随后对2006年在该诊所进行年度检查的小学六年级儿童的牙科记录进行回顾性分析。如果图表显示儿童受到mih的影响，则选择记录进行本研究。共审查了2635份记录，确定了73例MIH病例。该组儿童的MIH患病率为2.8%。他们的平均年龄为12岁，男女比例为1:1 .2。受影响儿童的平均蛀牙、缺牙或补牙值为1.5，高于一般12岁香港华人儿童的平均值（0.8）。共有192颗牙齿受到影响。最常见的是上颌第一恒磨牙，其次是下颌第一恒磨牙和上颌中切牙。在52例（38%）和65例（47%）恒磨牙低矿化患者中分别发现了牙齿填充物和牙缝密封剂。60例患儿无明显病史，13例患儿有早期疾病。香港华裔儿童恒牙的MIH患病率为2.8%。MIH患儿恒牙列龋齿发生率高于同龄人群。
Background. Most prevalence studies on molar incisor hypomineralization (MIH) were carried out in European countries, and data from the East-Asian populations were lacking.Aim. This study aimed to investigate the prevalence of MIH in Hong Kong Chinese children.Design. Since 2006, charting of teeth with MIH was included into the routine dental examination in a school dental clinic. The dental records of grade 6 primary school children who attended annual check-up in this clinic in 2006 were subsequently reviewed retrospectively. The records were selected for this study if the charting indicated that the children were affected by MIH.Results. A total of 2635 records were reviewed and 73 cases of MIH were identified. The prevalence of MIH in this group of children was 2.8%. Their mean age was 12, and the male-to-female ratio was 1 : 1.2. The mean decayed, missing, or filled permanent teeth value of those affected was 1.5, which was higher than that of the general Hong Kong Chinese children aged 12 years old (0.8). A total of 192 teeth were affected. The most commonly affected teeth were permanent maxillary first molars, followed by mandibular first molars and maxillary central incisors. Dental fillings and fissure sealants were found in 52 (38%) and 65 (47%) permanent first molars with hypomineralization, respectively. Medical histories were unremarkable in 60 children, whereas early childhood diseases were reported in 13 cases.Conclusions. The prevalence of MIH in the permanent dentition of Hong Kong Chinese children was 2.8%. Children with MIH showed higher caries experience in the permanent dentition than the general population of similar age.