Wang Yun, Chen Jie, Liu He
Chin J Dent Res. 2013;16(2):153-6.
To determine the prevalence of preeruptive intracoronal dentin defects in Chinese children from panoramic radiographs, and describe the imaging characteristics of these lesions.
A total of 707 panoramic radiographs with 8,171 unerupted permanent teeth were examined. Each unerupted tooth was examined with regard to the absence or presence of radiolucencies within the dentin of the crown. The location and size of the lesions were recorded. Also whether the lesion communicated with the pulp was noted.
The prevalence of intracoronal radiolucency in the subjects was 0.85%, and the tooth prevalence of the anomaly was 0.7%.
Panoramic radiographs may help in detecting the preeruptive intracoronal defect.
通过全景X线片确定中国儿童牙冠内牙本质发育前缺陷的患病率，并描述这些病变的影像学特征。
共检查了707张全景X线片，其中包含8171颗未萌出的恒牙。对每颗未萌出的牙齿检查牙冠牙本质内是否存在透射区。记录病变的位置和大小。同时记录病变是否与牙髓相通。
受试者牙冠内透射区的患病率为0.85%，该异常的牙齿患病率为0.7%。
全景X线片有助于检测牙冠内发育前缺陷。
