<prompt> Common complication seen in a patient of osteopetrosis during extraction is:Jaw fractureOsteomyelitisBoth of the aboveNone  <response>: Medullary spaces of jaws are remarkably reduced in both forms.Osteomyelitis and jaw fracture is common during tooth extraction.Key concept:Osteomyelitis of the mandible is common due to a deficient blood supply. Bones are fragile and can fracture easily. Ref: Shafers textbook of oral pathology 7th edition page 704 