Table 1. Probing depth, periodontal attachment level, and intrabony defect depth in alendronate and placebo groups at different time interval.

Parameters (mm)	Visits	ALN	Placebo	t-value†	p-value
Probing depth	Baseline 2 Month 6 Month	7.84 ±2.04 5.05 ±1.78 3.68 ±1.93	7.62 ±1.97 6.38 ±1.84 5.57±1.88	0.21 9.87 18.253	0.645 <0.002* <0.001*
Periodontal attachment level	Baseline 2 Month 6 Month	6.43 ±1.77 4.05 ±1.94 2.49 ±1.53	6.19 ±1.54 5.22 ±1.73 4.41±1.83	0.4 7.36 23.79	0.531 <0.008* <0.001*
Intrabony defect depth	Baseline 6 Month	5.18 ±1.00 3.07 ±0.94	5.10 ±0.95 4.97 ±0.95	0.123 74.03	0.727 <0.001*

*Statistically significant at p<0.05

† t test