Table 3. The degree of inflammation in the furcation region shown by histology.

Groups	Region	Degree of inflammationa)	P valueb)
A	Furca	3.6±0.89 vs. 3.4±0.89	0.733
B	Furca	3.0±0.81 vs. 2.0±0.01	0.018
C	Furca	2.4±0.55 vs. 2.5±1.0	0.853

Data are shown as mean±standard deviation.

Groups are represented as below: A, ZOL/Lig30 vs. Con/Lig30; B, ZOL/Lig15 vs. Con/Lig15; C, Lig/ZOL vs. Lig/Con.

ZOL: zoledronic acid.

^a)These values refer to the mean scores of the inflammatory reaction intensity; ^b)Student's t-test.