Investigation of prevalence of dental anomalies by using digital panoramic radiographs

• Published in: Folia morphologica 2018-01, Vol.77 (2), p.323-328
• Main Authors: Bilge, N H, Yeşiltepe, S, Törenek Ağırman, K, Çağlayan, F, Bilge, O M
• Format: Article
• Language: English
• Subjects: Adolescent; Adult; Amelogenesis imperfecta; Anodontia - diagnostic imaging; Anodontia - epidemiology; Child; Cross-Sectional Studies; Dental Pulp Cavity - abnormalities; Dental Pulp Cavity - diagnostic imaging; Dentin; Dentinogenesis; Dentinogenesis imperfecta; Dysplasia; Female; Humans; Male; Prevalence; Radiography; Radiography, Panoramic; Tooth Abnormalities - diagnostic imaging; Tooth Abnormalities - epidemiology; Tooth, Impacted - diagnostic imaging; Tooth, Impacted - epidemiology; Transposition
• ISSN: 0015-5659; 1644-3284
• DOI: 10.5603/FM.a2017.0087

This study was performed to evaluate the prevalence of all types and subtypes of dental anomalies among 6- to 40-year-old patients by using panoramic radiographs. This cross-sectional study was conducted by analysing digital panoramic radiographs of 1200 patients admitted to our clinic in 2014. Dental anomalies were examined under 5 types and 16 subtypes. Dental ano-malies were divided into 5 types: (a) number (including hypodontia, oligodontia and hyperdontia); (b) size (including microdontia and macrodontia); (c) structure (including amelogenesis imperfecta, dentinogenesis imperfecta and dentin dys-plasia); (d) position (including transposition, ectopia, displacement, impaction and inversion); (e) shape (including fusion-gemination, dilaceration and taurodontism). The prevalence of dental anomalies diagnosed by panoramic radiographs was 39.2% (46% in men and 54% in women). Anomalies of position (60.8%) and shape (27.8%) were the most common types of abnormalities and anomalies of size (8.2%), structure (0.2%) and number (17%) were the least in both genders. Anomalies of impaction (45.5%), dilacerations (16.3%), hypodontia (13.8%) and taurodontism (11.2%) were the most common subtypes of dental anomalies. Taurodontism was more common in the age groups of 13-19 years. The age range of the most frequent of all other anomalies was 20-29. Anomalies of tooth position were the most common type of dental anomalies and structure anomalies were the least common in this Turkish po-pulation. The frequency and type of dental anomalies vary within and between populations, confirming the role of racial factors in the prevalence of dental ano-malies. Digital panoramic radiography is a very useful method for the detection of dental anomalies. (Folia Morphol 2018; 77, 2: 323-328).