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Health Dictionary

Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Osteonecrosis of the jaw classification

Introduction

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)

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