Research Article

Combined Administration of Bisphosphonates, Chemotherapeutic Agents, and/or Targeted Drugs Increases the Risk for Stage 3 Medication-Related Osteonecrosis of the Jaw: A 4-Year Retrospective Study

Table 2

Demographic and clinical characteristics of the two groups.

VariablesGroup A: stage 2 ()Group B: stage 3 () values
No.%No.%

Sex
 Male1651.61655.20.782
 Female1548.41344.8
Age (years)
 Range61-8960-85
0.403
Smoking1238.71551.70.311
Primary diseases
 Breast cancer39.7517.2
 Multiple myeloma39.7413.9
 Prostate cancer1032.326.9
 Pulmonary cancer825.7931.0
 Renal cancer00413.9
 Lymphoma0013.4
 Gastric carcinoma13.200
 Rectum carcinoma0013.4
 Unknown cancer0013.4
 Osteoporosis619.426.9
General diseases
 Hypertension1548.41241.40.586
 Diabetes825.81034.50.464
 Renal disease26.5517.20.247
Local factors
 Tooth extraction2167.72275.90.485
 Denture use722.6310.30.302
 Periodontal disease2787.12482.80.727
Chemotherapy1135.52172.40.004
Targeted drugs722.61655.20.009
Endocrine drugs1341.9724.10.144
Immunosuppressive drugs412.9827.60.155
Lesion location
 Mandible2580.61862.10.111
 Maxilla619.41551.70.009
 Anterior region412.9517.20.727
 Posterior region2787.12482.80.727
TTO (months)
 Range16-12011-72
0.144
dTTO (months)
 Range0-360-21
0.710

values were statistically significant. Abbreviations: SD: standard deviation; TTO: time from first using bisphosphonate to the onset of MRONJ; dTTO: time from last using bisphosphonate to the onset of MRONJ.