Table 5.

Comparison of crestal bone levels between Group B and Group D

Time	Groups	Crestal bone level
		Mean±SD	t	P
Preoperatively	Group B	0.013±0.005	3.321	0.0025**
	Group D	0.008±0.003
Immediate postoperatively	Group B	0.014±0.005	3.236	0.0031**
	Group D	0.010±0.004
3 months	Group B	0.018±0.004	5.270	0.0001**
	Group D	0.009±0.005
6 months	Group B	0.014±0.006	4.840	0.0001**
	Group D	0.005±0.004

SD: Standard deviation