Developmental arrest of tooth bud after correction of mandibular fracture

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Abstract A case of multiple fractures of the mandible following a car accident in a five‐year‐old patient is reported. The fracture line passed distal to the first molar tooth bud. The fracture was treated by wire osteosynthesis and skeletal fixation. During the ensuing 18 months, a gradual arrest of the development of the first molar tooth bud was radiologically observed. The eruption process had not been disturbed, and the tooth erupted at the age of 61/2 years. Since the distal root had completely failed to develop and the mesial roots showed a diminished size, the tooth was extracted. Histopathological examination revealed disturbed dentin apposition, there was almost complete obliteration of the pulp chamber by globular dentin, and evidence of root resorption.

Original languageEnglish
Pages (from-to)105-107
Number of pages3
JournalDental Traumatology
Issue number2
StatePublished - Apr 1995


  • developmental arrest
  • mandibular fracture
  • tooth bud


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