Research Article

Medication-Related Osteonecrosis of the Jaws: Two Center Retrospective Cohort Studies

Table 2

Crosstab between study variables and clinical outcome.

Study VariablesClinical outcometotal
cured/improvement, N (%)stable/progression N (%)

Sex
 Male6 (54.5%)5 (45.5%)11
 Female15 (71.4%)6 (28.6%)21
 Total21 (65.6%)11 (34.4%)32
Age
 <50 years3 (60%)2 (40%)5
 > 50 years18 (66.7%)9 (33.3%)27
Underlying disease
 Osteoporosis8 (72.7%)3 (27.3%)11
 Malignant13 (61.9%)8 (38.1%)21
Stage
 I4 (80%)1 (20%)5
 II12 (66.7%)6 (33.3)18
 III5 (55.6%)4 (44.4%)9
BPs consumption
 <12 months4 (80%)1 (20%)5
 12 to 3611 (61.1%)7 (38.9%)18
 >36 months6 (66.7%)3 (33.3%)9
BPs intake
 IV+(IV+PO)16 (61.5%)10 (38.7%)26
 PO5 (83.3%)1 (16.7%)6
  (IV+PO) +PO9 (81.8%)2 (18.2)11
 IV12 (57.1%)9 (42.9%)21
TIMING OF TOOTH EXTRACTION
 During BPs therapy16 (69.6%)7 (30.4%)23
 After cessation of BPs therapy5 (55.6%)4 (44.4%)9
Chemotherapy
 Yes11 (64.7%)6 (35.3%)7
 No2(50%)2(50%)4
Bone metastasis
 Yes9 (64.3%)5 (35.7%)14
 No4 (57.1%)3 (42.9%)7
Localisation
 mandible15 (65.2%)8 (34.8%)23
 maxilla6 (66.7%)3 (33.3%)9
Etiology
 dental extraction-trauma20 (66.6%)10 (33.4%)30
 No dental extraction1 (50 %))1 (50%)2
Surgical approach
 Surgical10 (55.6%)8 (44.4%)18
 Conservative11 (78.6%)3 (21.4%)14

(i) Data presented as n (%) or mean ± standard deviation.