Photobiomodulation by a 635nm Diode Laser on Peri-Implant Bone: Primary and Secondary Stability and Bone Density Analysis—A Randomized Clinical Trial

Table 1

Results of Periotest value (PTV ) of implants at different time points in the test and control groups.

Period	Laser	Std	Control	Std	t-value	df	p-value
Basaline	-5.37	0.52	-5.35	0.68	-0.07	22	0.9468
2 weeks	-5.30	0.46	-4.48	0.53	-4.03	22	0.0006
4 weeks	-4.64	0.51	-4.04	0.59	-2.67	22	0.0141
8 weeks	-5.01	0.41	-4.63	0.59	-1.85	22	0.0779
12 weeks	-5.53	0.55	-4.35	2.89	-1.39	22	0.1797