Investigation of dens invaginatus in a Chinese subpopulation using Cone‐beam computed tomography

Abstract

Dens invaginatus (DI) is a tooth abnormality first described by Socrates in 1856 (Hulsmann, 1997). The etiology of this malformation remains unknown, and it resulted in an invagination of the enamel organ into the dental papilla before mineralization of the tooth structure (Nosrat & Schneider, 2015). It will cause the weakness of enamel , which can easily lead to pulp infection. The clinical symptoms of DI may not be typical, by analyzing the incidence of DI in the population can alert the clinicians of the existence of this kind of teeth malformation and help improve the early diagnosis rate of DI.The prevalence of DI is 0.25%-10% in the general population . The variation in the prevalence may be caused by the different cohorts studied, identification criteria used, and diagnostic difficulties . Invaginated teeth were usually presented as case reports in the literature. There are a limited number of studies reporting the prevalence of DI, in which

Nonsurgical management of type II dens invaginatus with cone beam computed tomography: a rare case

“…Approximately 42% of all occurrences are seen in the permanent maxillary lateral incisors and a few in the central incisors; it also arises from the posterior teeth extending from the occlusal pit. 2,3 It is also thought that the anomaly could be symmetrical. Forty-three percent of occurrence of invaginated tooth bilaterally is a common outcome.…”

Prevalence of Dens Invaginatus assessed by CBCT: Systematic Review and Meta-Analysis

“…( 23 ), Chen et al . ( 24 ), and Mabrouk et al . ( 22 ) conclude that CBCT provides an accurate representation of both external and internal dental anatomy, helping in the diagnosis of dens invaginatus.…”

“…Data from selected articles were analysed and summarised in Table 2 . To carry out the meta-analysis, the results of three of the included studies ( 22 - 24 ) were incorporated in full because these studies used only CBCT to diagnose dens invaginatus. On the contrary, from the study of Capar et al .…”

“…Study by Chen et al . ( 24 ) uses CBCT images of 1004 patients (493 men and 511 women) from 17 to 73 years in a Chinese population. Dens invaginatus was observed in 85 of 1004 patients (prevalence 8.47%), being more prevalence in males than females (6.68% females and 10.75% males).…”

“…The study by Chen et al . ( 24 ) studied and reported results from a sample of the Beijing population and study by Alkadi et al . ( 23 ), which is based on a convenience sample that may not be representative of the population.…”