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Osteonecrosis of the jaw classification

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Overview

Classification[1][2]

Classification[1][2]

  • Stage 0: Patients who present with unspecific symptoms or radiographic findings but without clinical evidence of necrosis.
  • Symptoms:
  • Dull pain in the mandible body which can radiate to the temporomandibular joint
  • Unexplained odontalgia
  • Maxillary sinus pain
  • Altered mental status
  • Clinical findings
  • Not caries associated periapical or periodontal fistula
  • Unexplained loosening of the teeth
  • Radiographic findings
  • Trabecular pattern changes
  • Thickening of the periodontal ligament
  • Osteosclerosis regions which involves alveolar bone and the basilar bone
  • Alveolar bone loss or resorption
  • Stage 1: Asymptomatic patients, without infection evidence who present an exposed necrotic bone or fistula. Radiographic findings mentioned above can be found in patients with stage 1
  • Stage 2: Patients with exposed necrotic bone or fistula and signs of infection, usually symptomatic. Radiographic findings mentioned above can be found in patients with stage 2
  • Stage 3: Patients with the characteristics of stage 2 plus one or more of the following conditions:
  • Pathologic fracture
  • Osteolisis which reaches the sinus floor or the external border of the mandible
  • Orocutaneos fistula
  • Comunication with the maxillary sinus (oroantral) or the nose (oronasal)
References

References

  1. “http://www.aaoms.org/docs/position_papers/mronj_position_paper.pdf?pdf=MRONJ-Position-Paper” (PDF). External link in |title= (help)
  2. Bedogni, A.; Fusco, V.; Agrillo, A.; Campisi, G. (2012). “Learning from experience. Proposal of a refined definition and staging system for bisphosphonate-related osteonecrosis of the jaw (BRONJ)”. Oral Dis. 18 (6): 621–3. doi:10.1111/j.1601-0825.2012.01903.x. PMID 22353421. Unknown parameter |month= ignored (help)

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