Table 2.

Stages of MRONJ after [80]

Stage 0	Non-specific clinical signs such as difference in bone density, tooth mobility without periodontal disease, pain in mandibular, no exposed necrotic bone
Stage 1	Necrotic bone exposed but asymptomatic, no infection
Stage 2	Infected exposed necrotic bone accompanied by symptoms
Stage 3	Infected exposed necrotic bone accompanied by symptoms additionally to severe signs of MROJ such as fracture, extra-oral fistula or extended osteolysis