title: Dental Anomalies in Permanent Teeth after Trauma in Primary Dentition.
abstract: OBJECTIVE
  This retrospective study aims to evaluate the prevalence of dental anomalies in permanent teeth as a result of a trauma concerning the predecessor primary teeth.
  
  
  METHODS
  A total of 241 records of children (118 males and 123 females, mean age 3.62 &plusmn; 1.40) affected by trauma on primary teeth were analyzed. All patients were recalled to evaluate the status of the permanent successor teeth by clinical and radiographic investigations.
  
  
  RESULTS
  Out of 241 patients, 106 patients (for a total of 179 traumatized primary teeth) presented at the recall. Dental anomalies on successor permanent teeth were detected in 21 patients (19.8%), for a total of 26 teeth (14.5%) and 28 anomalies. Anomalies of the eruptive process were the most observed disturbances (60.7%), followed by enamel hypoplasia (25%) and white spots (14.3%). A higher percentage of anomalies on permanent teeth was observed when trauma occurred at an age less than 36 months (38.5% of cases). Intrusive and extrusive luxation were related with the most cases of clinical disturbances in the successor permanent teeth.
  
  
  CONCLUSIONS
  The results of this study highlight the risk of dental anomalies after a trauma in primary dentition, especially in early-aged children and in case of intrusive luxation.
authors.forename: Elena
authors.initials: E
authors.lastname: Bardellini
authors.forename: Francesca
authors.initials: F
authors.lastname: Amadori
authors.forename: Stefania
authors.initials: S
authors.lastname: Pasini
authors.forename: Alessandra
authors.initials: A
authors.lastname: Majorana
mesh_terms: D002648:Child; D002675:Child, Preschool; D003731:Dental Caries / Q000453:epidemiology; D003744:Dental Enamel Hypoplasia / Q000453:epidemiology; D019229:Dentition, Permanent; D005260:Female; D006801:Humans; D007223:Infant; D007558:Italy / Q000453:epidemiology; D008297:Male; D012189:Retrospective Studies; D014078:Tooth Eruption; D014094:Tooth, Deciduous / Q000293:injuries*
keywords: Primary teeth; delayed eruption; hypoplasia; sequelae; trauma