IADR Abstract Archives
Assessment of dens invaginatus prevalence using CBCT images of 188 Tunisian patients
Objectives: : Dens invaginatus (DI) is a rare anomaly of the permanent tooth. The aim of the present study was to assess the prevalence of DI and to identify types and most involved teeth.
Methods: The study included non-redundant CBCT images of high quality from 188 Tunisian patients. The presence of DI was detected by 2 independent observers. Axial, coronal and sagittal reconstructions were analyzed. Data related to age, gender, number of teeth, type and location of DI were recorded. Statistical analysis was performed using the Excel Software.
Results: Patients’ age varied from 10 to 98 years with a mean of 46.5±SD years. They were 97 men and 91 women with a sex ratio of 1.06. DI was detected in 37 out of the 3365 teeth analyzed with a prevalence of 1.09. Among the involved teeth, 34 were upper lateral incisors, 2 were upper central incisors and one low premolar. When considering only the total number of incisors (n=581), the prevalence of DI was 6.19%. Apical periodontitis was detected in two invaginated lateral upper incisors and in one case of central upper incisors.
Regarding DI types, only type I was seen in 56, 75 % of the cases followed by type II 32.43%. Type III was detected in 10.81%.
Conclusions: The present study shows that the prevalence of DI is low. The most involved teeth are upper lateral incisors. CBCT is a useful tool for an accurate detection of DI.
Methods: The study included non-redundant CBCT images of high quality from 188 Tunisian patients. The presence of DI was detected by 2 independent observers. Axial, coronal and sagittal reconstructions were analyzed. Data related to age, gender, number of teeth, type and location of DI were recorded. Statistical analysis was performed using the Excel Software.
Results: Patients’ age varied from 10 to 98 years with a mean of 46.5±SD years. They were 97 men and 91 women with a sex ratio of 1.06. DI was detected in 37 out of the 3365 teeth analyzed with a prevalence of 1.09. Among the involved teeth, 34 were upper lateral incisors, 2 were upper central incisors and one low premolar. When considering only the total number of incisors (n=581), the prevalence of DI was 6.19%. Apical periodontitis was detected in two invaginated lateral upper incisors and in one case of central upper incisors.
Regarding DI types, only type I was seen in 56, 75 % of the cases followed by type II 32.43%. Type III was detected in 10.81%.
Conclusions: The present study shows that the prevalence of DI is low. The most involved teeth are upper lateral incisors. CBCT is a useful tool for an accurate detection of DI.