title: Is the resorption external or internal?
abstract: Resorption of teeth is reviewed from a diagnostic perspective to clarify the confusion as to whether it is external or internal. The key features of the various types (external surface, transient apical breakdown, external inflammatory, external replacement, external cervical and internal) are described and illustrated by cases. Management and appropriate treatment is dependent on the correct diagnosis.
  
  
  CONCLUSIONS
  Diagnosis of resorption is essential to the appropriate management.
authors.affiliation: King's College London Dental Institute, Restorative Dentistry, Guy's Hospital, London SEl 9RT, UK.
authors.forename: Shanon
authors.initials: S
authors.lastname: Patel
authors.forename: Thomas Pitt
authors.initials: TP
authors.lastname: Ford
mesh_terms: D000328:Adult; D002648:Child; D003786:Dental Pulp Cavity / Q000000981:diagnostic imaging / Q000473:pathology; D005260:Female; D006801:Humans; D007180:Incisor / Q000000981:diagnostic imaging / Q000293:injuries*; D008297:Male; D009971:Orthodontics, Corrective / Q000009:adverse effects*; D010513:Periodontal Ligament / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography; D014084:Tooth Avulsion / Q000150:complications* / Q000000981:diagnostic imaging; D019237:Tooth Cervix / Q000000981:diagnostic imaging / Q000473:pathology; D014091:Tooth Resorption / Q000145:classification / Q000000981:diagnostic imaging* / Q000209:etiology; D014092:Tooth Root / Q000000981:diagnostic imaging* / Q000473:pathology; D014095:Tooth, Impacted / Q000150:complications / Q000000981:diagnostic imaging