上颌侧切牙盲孔与牙内陷相关性分析
Analysis of the Association of Foramen Cecum and Dens in Dente in Maxillary Lateral Incisor.
作者信息
Genaro Luis Eduardo, Conte Marcelo Brito, Anovazzi Giovana, Gonçalves Andréa, Gonçalves Marcela de Almeida, Capote Ticiana Sidorenko de Oliveira
机构信息
Department of Morphology, Genetics, Orthodontic and Pediatric Dentistry, School of Dentistry, São Paulo State University, Araraquara, São Paulo, Brazil.
Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University, Araraquara, São Paulo, Brazil.
出版信息
Eur J Dent. 2021 May;15(2):242-246. doi: 10.1055/s-0040-1717157. Epub 2020 Oct 5.
OBJECTIVES
The aim of this study was to evaluate the frequency of foramen cecum and dens in dente, and to verify the association of these structures in the maxillary lateral incisor (MLI).
MATERIALS AND METHODS
The presence of foramen cecum in the lingual surface of 110 MLI was verified, and the teeth were radiographed to observe the presence of dens in dente, being classified according to the literature. An association study between the presence of foramen cecum and dens in dente was performed using the Cramer's V and chi-square statistical tests.
RESULTS
The association was statistically significant between the foramen cecum and the dens in dente. Concomitant presence was observed in 17.27%, being a high rate when compared with the presence of foramen cecum alone (9.09%) or dens in dente alone (8.18%). In addition, type I (minimal invagination, confined to the crown of the tooth and not extending beyond the level of the cementum-enamel junction) was the most frequent (82.14%).
CONCLUSIONS
We emphasize the importance of alerting the dentist to the presence of a foramen cecum on the lingual surface of the MLI, as it is likely that dens in dente is usually of type I. Thus, the foramen cecum is a sign that can assist the dental surgeon in the discovery of dens in dente and clinical conduct to be taken.
目的
本研究旨在评估盲孔和牙中牙的发生率，并验证这些结构在上颌侧切牙（MLI）中的关联性。
材料与方法
检查110颗上颌侧切牙舌面盲孔的存在情况，并对牙齿进行放射照相以观察牙中牙的存在情况，根据文献进行分类。使用克莱默V检验和卡方统计检验对盲孔和牙中牙的存在情况进行关联研究。
结果
盲孔与牙中牙之间的关联具有统计学意义。同时存在的情况占17.27%，与单独存在盲孔（9.09%）或单独存在牙中牙（8.18%）相比，这一比例较高。此外，I型（最小内陷，局限于牙冠且不超过牙骨质-釉质界水平）最为常见（82.14%）。
结论
我们强调提醒牙医注意上颌侧切牙舌面存在盲孔的重要性，因为牙中牙通常可能是I型。因此，盲孔是一种可协助牙科医生发现牙中牙及指导临床操作的体征。
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