Prevalence of Teeth with Dens Invaginatus in 3038 Cases of Cone Beam Computer Tomography Data in Jilin Province

doi:10.13701/j.cnki.kqyxyj.2021.09.015

Abstract

Abstract: Objective: To explore the prevalence of dens invaginatus and imaging features in a sample of dental patients in Jilin province from January 2019 to December 2019. Methods: The data was collected from examination of 3038 CBCT radiographs. When the enamel image of the tooth was observed to be sunken from crown to the root or to form a root canal-like structure, the position of the affected tooth, the degree of invagination, and the gender of the patient were recorded. Results: Teeth with dens invaginatus were found in 90 subjects out of 3038 subjects. The person prevalence was about 3.00%. Bilateral dens invaginatus was seen in 48 patients, whereas unilateral dens invaginatus was demostrated in 42 patients. Den invaginatus was detected in 139 teeth out of 67543 teeth with a tooth prevalence of 0.21%. According to Oehler’s classification of dens invaginatus, Oehlers type I was the highest percentage of teeth with dens invaginatus, accounting for about 71.94% in the affected teeth. Maxillary lateral incisors were the most common teeth affected with the dens invaginatus, accounting for about 87.05%. The teeth with dens invaginatus were mostly concentrated in the maxillary anterior region. The prevalence and Oehler’s classification of teeth with dens invaginatus was not significantly related to gender. Conclusion: Dens invaginatus are not as rare as previously thought, and should be paid attention to by dentists, and new techniques should be used for treatment.

Key words: dens invaginatus, teeth dysplasia, prevalence, root canal treatment, cone beam computer tomography, maxillary lateral incisor

HU Xue, DUAN Tao, YIN Shuo, XIE Jinfang, ZHANG Yingli, LIU Xia. Prevalence of Teeth with Dens Invaginatus in 3038 Cases of Cone Beam Computer Tomography Data in Jilin Province[J]. Journal of Oral Science Research, 2021, 37(9): 840-844.

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