Department of Paediatric Dentistry, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.
School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.
Int J Paediatr Dent. 2021 Mar;31(2):270-277. doi: 10.1111/ipd.12735. Epub 2020 Oct 22.
There are scarce data on the hypomineralisation of other permanent teeth (HOPT) than the index teeth of Molar Incisor Hypomineralisation (MIH).
To report on the prevalence and surface pattern of HOPT and seek associations with MIH.
Representative samples of urban Greek 14-year-olds were examined in classroom with a dental mirror. Their enamel defects were recorded using EAPD criteria for MIH. Descriptive statistics and correlation tests for HOPT vs previously reported MIH findings in the same samples were applied.
HOPT prevalence in 1156 consented adolescents was 22.9%. 148 (16.2%) of 912 no-MIH children had HOPT; 117 (48.1%) of the 244 MIH children had HOPT too (OR 3.0, 95% CI 2.4-3.6). There were more HOPT teeth per child in the MIH vs no-MIH children (P < .001). HOPT tooth frequency was as follows: second molar 33.7%, canine 25.7%, first premolar 23.6%, and second premolar 17.0%. Enamel breakdown was seen in 5.3% HOPT children. Vestibular to intraoral surface defect ratio differed between jaws (maxilla 187/88, mandible 149/17, P < .05).
Hypomineralisation defects in the MIH non-index teeth collectively had comparable prevalence and tooth surface patterns to MIH, but much lower severity. MIH was predictor for HOPT.
除了磨牙-切牙型低矿化（MIH）的指数牙外，关于其他恒牙低矿化（HOPT）的数据很少。
报告 HOPT 的流行率和表面模式，并探讨其与 MIH 的关系。
在教室里用牙科镜对具有代表性的希腊城市 14 岁青少年样本进行检查。使用 MIH 的 EAPD 标准记录他们的牙釉质缺陷。对 HOPT 与之前在相同样本中报告的 MIH 发现进行描述性统计和相关性检验。
在 1156 名同意参与的青少年中，HOPT 的患病率为 22.9%。912 名无 MIH 的儿童中有 148 名（16.2%）患有 HOPT；244 名 MIH 儿童中有 117 名（48.1%）也患有 HOPT（OR 3.0，95%CI 2.4-3.6）。MIH 儿童的每颗 HOPT 牙齿数量多于无 MIH 儿童（P<0.001）。HOPT 牙齿的频率如下：第二磨牙 33.7%，犬牙 25.7%，第一前磨牙 23.6%，第二前磨牙 17.0%。在 5.3%的 HOPT 儿童中发现牙釉质破裂。上颌的颊侧到口内表面缺陷比与下颌不同（上颌 187/88，下颌 149/17，P<0.05）。
MIH 非指数牙的矿化缺陷总体上具有与 MIH 相似的流行率和牙齿表面模式，但严重程度要低得多。MIH 是 HOPT 的预测因素。
