New Dimensional Staging of Bisphosphonate-Related Osteonecrosis of the Jaw Allowing a Guided Surgical Treatment Protocol: Long-Term Follow-Up of 266 Lesions in Neoplastic and Osteoporotic Patients from the University of Bari

Table 4

BRONJ lesions (𝑁=277).

	𝑁	%
Clinical stage (AAOMS)
Lesions in neoplastic patients	195	73.3%
Stage 0	1	0.51%
Stage 1	14	7.18%
Stage 2	115	58.97%
Stage 3	65	33.33%
Lesions in osteoporotic patients	71	26.7%
Stage 0	1	1.4%
Stage 1	2	2.82%
Stage 2	53	74.65%
Stage 3	15	21.13%
Dimensional stage
Lesions in neoplastic patients	195	73.3%
Stage 0	1	0.51%
Stage I	22	11.28%
Stage II	58	29.74%
Stage III	114	58.5%
Lesions in osteoporotic patients	71	26.7%
Stage 0	1	1.41%
Stage I	13	18.31%
Stage II	28	39.44%
Stage III	29	40.84%
Medium size	3.8±1.6 cm
History of extractions	169	63.53%
Initial symptoms per lesion (𝑁=266)
Pain	233	87.59%
Suppuration	198	74.43%
Paraesthesia	78	29.32%
Fistulas	46	17.29%
Maxillary sinus involvement	34	12.78%