Table 3. Comparison of the time and disease differences of the radiation densities between the region of interest and the contralateral side.

	ORN	BRONJ	OM
Per Δ0	22.71±15.67	14.14±9.25	12.20±9.58
Per Δ1	13.44±9.05	11.34±7.13	10.72±8.75
Per Δ2	12.20±9.58	10.01±9.30	9.30±8.83

(Per Δ0: ratio of radiographic densities before taking pentoxifylline [PTX] and tocopherol, Per Δ1: ratio of radiographic densities 3 months after taking PTX and tocopherol, Per Δ2: ratio of radiographic densities 6 months after PTX and tocopherol, ORN: osteoradionecrosis, BRONJ: bisphosphonate-related osteonecrosis of the jaws, OM: chronic osteomyelitis)

Statistical significance test was performed with repeated measures ANOVA.

Values are presented as mean±standard deviation.