背景:本研究的目的是确定磨牙切牙矿化不足与发育性牙齿异常之间是否存在关联。
方法:两名儿科牙医评估了429名8-14岁磨牙门牙入矿不足的儿童(研究组)和437名无磨牙门牙入矿的儿童(对照组)的发育性牙齿异常的全景X线照片。十二种不同的发育牙齿异常被分为四种类型:大小(microdontia,巨大牙体);位置(上颌永久性第一磨牙的异位萌出,初级磨牙的内咬合);形状(融合,双生,撕裂,牛磺酸症,钉形上颌侧切牙);和数量(牙体发育不全,寡头,hyperdontia)异常。
结果:研究组和对照组之间的牙齿发育异常频率没有显着差异,女性,和男性(p>0.05)。在发育大小的分布之间发现了统计学上的显着差异,position,形状,研究组和对照组之间的数量异常(p=0.024)。两组中最常见的异常是牙体发育不全(6.3%和5.9%,分别)。在所有儿童和女性的形状异常亚型方面,研究组与对照组之间存在显着差异(分别为p=0.045和p=0.05)。
结论:虽然在有和没有磨牙门牙入矿的个体之间观察到发育牙齿异常类型的分布之间存在显着差异,在发育性牙齿异常的频率方面没有差异。
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.