Abstract
Objective: The purpose of this study was to assess the prevalence of dens invaginatus and to classify the types of dens invaginatus in a sample of the Turkish population.. Study Design: A retrospective study was performed using periapical and panoramic radiographs of 5355 patients who presented to the Department of Oral Diagnosis and Radiology at the Ondokuz Mayıs University Dentistry Faculty between January 2009 and December 2010. Maxillary and mandibular anterior teeth were evaluated for the presence and characteristics of dens invaginatus. Statistical evaluation of the presence of dens invaginatus related to gender was performed by the Pearson chi-squared test. Results: Dens invaginatus was observed in 116 of 4556 subjects, with a frequency of 2.5%. There was only one periapical lesion in teeth with type I dens invaginatus, but 8.1% of patients with type II and 87.5% of patients with type III dens invaginatus had apical periodontitis at the time of referral. There were 116 (72%) females and 32 (27%) males with dens invaginatus. Conclusion: This data represents the only study carried out in a large population in Turkey, and no dens invaginatus was found in mandibular teeth. The most commonly observed type of dens invaginatus was type I (69.8%). Key words:Dens invaginatus, dens in dente, dental anomaly, Turkish.
Highlights
Dens invaginatus, or dens in dente, is a tooth abnormality first described by a dentist named Socrates in 1856 [1]
The distribution of teeth with dens invaginatus is presented in table 2
There were 22126 maxillary and 21941 mandibular teeth examined for the presence of dens invaginatus
Summary
Dens in dente, is a tooth abnormality first described by a dentist named Socrates in 1856 [1]. By dens invaginatus, but the maxillary lateral incisors are most commonly affected [5,6,7]. This abnormality has a frequency of 0.04% to 10% in the general population. The purpose of this study was to assess the prevalence of dens invaginatus and to classify the types of dens invaginatus in a sample of the Turkish population. This information provides the dental practitioner with information about the types of teeth that are more likely to exhibit technical difficulties associated with endodontic treatment
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