Umansky Marina, Tickotsky Nili, Friedlander-Barenboim Silvina, Faibis Sarit, Moskovitz Moti
J Clin Pediatr Dent. 2016;40(2):103-6. doi: 10.17796/1053-4628-40.2.103.
The present study aimed to determine if the prevalence of pre-eruptive intracoronal radiolucent defects is higher for young age groups, in which there are more unerupted teeth.
A retrospective study of panoramic and bitewing radiographs was conducted. An inclusion criterion was the presence of un-erupted permanent teeth with a formed and clearly visible crown. Age groups were: young (6-8 years), intermediate (9-12 years) and adults (13-53 years). Significance level was set at p≤0.05.
Thirteen (3.9%) pre-eruptive lesions were detected in 335 records. No lesions were found in the young group (7.4%), in the intermediate and adult age groups six and seven lesions were found, respectively. In most cases the pre-eruptive lesion was found in a third molar.
The prevalence of pre-eruptive intracoronal lesions was not higher for young age groups. The prevalence of pre-eruptive intra coronal radiolucent lesions is 3.9%, irrespective of age.
本研究旨在确定在未萌出牙齿较多的年轻年龄组中，牙冠内萌出前透射性缺损的患病率是否更高。
对全景片和咬合翼片进行回顾性研究。纳入标准为存在牙冠已形成且清晰可见的未萌出恒牙。年龄组分为：年轻组（6 - 8岁）、中年组（9 - 12岁）和成年组（13 - 53岁）。显著性水平设定为p≤0.05。
在335份记录中检测到13处（3.9%）萌出前病变。年轻组（7.4%）未发现病变，中年组和成年组分别发现6处和7处病变。在大多数情况下，萌出前病变见于第三磨牙。
年轻年龄组牙冠内萌出前病变的患病率并不更高。无论年龄如何，牙冠内萌出前透射性病变的患病率为3.9%。
