Department of Pediatric Dentistry, School of Dentistry, Marmara University, Istanbul, Türkiye.
Department of Pediatric Dentistry, School of Dentistry, Çanakkale Onsekiz Mart University, Çanakkale, Türkiye.
BMC Oral Health. 2023 Oct 21;23(1):776. doi: 10.1186/s12903-023-03540-8.
The aim of this study was to determine whether there is any association between molar incisor hypomineralization and developmental dental anomalies.
Two pediatric dentists evaluated panoramic radiographs of 429 children aged 8-14 years with molar incisor hypomineralization (study group) and 437 children without molar incisor hypomineralization (control group) in terms of developmental dental anomalies. Twelve different developmental dental anomalies were categorized into four types: size (microdontia, macrodontia); position (ectopic eruption of maxillary permanent first molars, infraocclusion of primary molars); shape (fusion, gemination, dilaceration, taurodontism, peg-shaped maxillary lateral incisors); and number (hypodontia, oligodontia, hyperdontia) anomalies.
No significant difference was observed in the frequencies of developmental dental anomalies between the study and control groups in total, females, and males (p > 0.05). A statistically significant difference was found between the distribution of developmental size, position, shape, and number anomalies between the study and control groups (p = 0.024). The most common anomaly in both groups was hypodontia (6.3% and 5.9%, respectively). There was a significant difference between the study and control groups in terms of subtypes of shape anomaly in all children and females (p = 0.045 and p = 0.05, respectively).
While a significant difference was observed between the distributions of types of developmental dental anomalies between individuals with and without molar incisor hypomineralization, there was no difference in terms of the frequency of developmental dental anomalies.
本研究旨在确定低矿化磨牙与发育性牙异常之间是否存在关联。
两名儿童牙医评估了 429 名 8-14 岁患有低矿化磨牙的儿童（研究组）和 437 名无低矿化磨牙的儿童（对照组）的全景片，评估了发育性牙异常。将 12 种不同的发育性牙异常分为 4 种类型：大小（小牙症、大牙症）；位置（上颌恒磨牙异位萌出、乳磨牙近中）；形态（融合、双生牙、扭转、尖牙畸形、上颌侧切牙钉状）；数目（缺牙症、少牙症、多生牙）异常。
总人群、女性和男性中，研究组和对照组发育性牙异常的频率无显著差异（p＞0.05）。研究组和对照组在发育大小、位置、形态和数量异常的分布上存在统计学差异（p=0.024）。两组最常见的异常均为缺牙症（分别为 6.3%和 5.9%）。在所有儿童和女性中，研究组和对照组在形态异常的亚型方面存在显著差异（p=0.045 和 p=0.05）。
虽然低矿化磨牙患者与无低矿化磨牙患者的发育性牙异常类型分布存在显著差异，但发育性牙异常的频率无差异。
