title: Unusual behavior in children--foreign object in tooth: a report of two cases.
abstract: BACKGROUND
  The chance of discovering foreign object in a root canal is more commonly seen in children. Foreign objects may act as a potential source of infection, which may hinder the complete debridement of root canal. Although the main etiology being an accidental insertion, there are other possibilities such as self-injurious habits which should be ruled out.
  
  
  METHODS
  The present article describes two case of foreign object in root canal, their possible etiology and management modalities. The first case reports a usual case of staple pin in root canal of primary teeth. The second case was a broken pin inside anterior permanent teeth. The cases reported highlight the need for proper diagnosis and early management.
  
  
  CONCLUSIONS
  This case report highlights the need for proper understanding of the etiology in management of foreign body in root canal system.
authors.affiliation: Department of Pediatric Dentistry, Saveetha Dental College and Hospitals, Chennai, India.
authors.forename: R
authors.initials: R
authors.lastname: Mahesh
authors.affiliation: Department of Pediatric Dentistry, Priyadharshini Dental College and Hospitals, Chennai, India.
authors.forename: H
authors.initials: H
authors.lastname: Waseem
authors.affiliation: Department of oral pathology, Madha Dental College and Hospitals, Chennai, India.
authors.forename: M
authors.initials: M
authors.lastname: Siva Kumar
mesh_terms: D002648:Child; D002675:Child, Preschool; D003786:Dental Pulp Cavity; D005547:Foreign Bodies / Q000209:etiology*; D006801:Humans; D007180:Incisor; D008297:Male; D018915:Root Canal Preparation; D012390:Root Canal Therapy / Q000009:adverse effects*
keywords: Foreign object; Self-Embedding habit; Stapler pin