Table 2.

Univariate analysis of clinical variables associated with the complete healing of maxillary MRONJ.

Variable	Category	Outcome		Total	p-value
		Healing	Not healing
Critical cause of MRONJ	Tooth extraction	19	5	24	0.386
	Other	27	3	30
History of a maxillary sinus radical operation	No	40	8	48	0.144
	Yes	6	0	6
Sequestration	No	34	8	42	0.396
	Yes	12	0	12
Sclerotic reaction	No	19	1	20	0.052
	Yes	27	7	34
Periosteal reaction	No	43	6	49	0.192
	Yes	3	2	5
Bone resection level	Under the apex	9	2	11	0.209
	Over the apex	37	6	43
Postoperative residual necrotic bone	No	41	5	46	0.047
	Yes	5	3	8
Wound procedure	Primary suture	43	6	49	0.512
	Open healing	3	2	5

MRONJ, medication-related osteonecrosis of the jaw.