title: Anomalies in primary dentition: Their distribution and correlation with permanent dentition.
abstract: BACKGROUND
  Anomalies in primary dentition are often found to be associated with anomalies in permanent dentition.
  
  
  OBJECTIVE
  This study was performed to evaluate the prevalence of supernumerary teeth, hypodontia, double teeth, and talon cusp in the primary dentition, and their effect on succedaneous permanent teeth.
  
  
  METHODS
  In this prospective cross-sectional study, we clinically investigated 2757 Bengali speaking nursery children (1474 girls and 1283 boys), of age four to six years, at their respective schools, and the presence of supernumerary teeth, hypodontia, double teeth, and talon cusp in the primary dentition were recorded. Children with anomalous primary teeth were further subjected to periapical and panoramic radiographic examination, to determine the status of the underlying permanent teeth.
  
  
  RESULTS
  The total prevalence of all anomalies in this study was 1.8%. A total of 38 children (21 girls and 17 boys) had anomalies. The prevalence of anomalies was as follows: Supernumerary teeth (0.4%), hypodontia (0.5%), double teeth (0.4%), and talon cusp (0.07%), in both sexes combined. Radiographic examination showed 50% of the patients (19 children) had anomalies in the permanent dentition.
  
  
  CONCLUSIONS
  Anomalies in primary dentition exhibited a correlation with anomalies in permanent dentition.
authors.affiliation: Department of Pedodontics, Burdwan Dental College and Hospital, Burdwan, West Bengal, India.
authors.forename: Santanu
authors.initials: S
authors.lastname: Mukhopadhyay
authors.affiliation: Department of Oral and Maxillofacial Pathology, Burdwan Dental College and Hospital, Burdwan, West Bengal, India.
authors.forename: Sanjib
authors.initials: S
authors.lastname: Mitra
keywords: Correlation; dental anomaly; permanent dentition; primary dentition