Implant Stability in the Posterior Maxilla: A Controlled Clinical Trial

Table 3

Statistical measures for all the implants and for implants with satisfactory primary implant stability (IS) (IT ≥ 45 N/cm and ISQ ≥ 60), in which ISQ measures were taken 15, 30, and 45 days after placement too.

Variable	N	Min.	1st quar.	Median	Mean	3rd quar.	Max.
IT	133	5.00	25.00	35.00	37.62	50.00	70.00
ISQ	133	10.00	63.00	72.50	69.06	77.00	87.00
ISQ	133	49.50	67.50	73.50	71.80	77.50	86.00
IT (IS)	52	45.00	45.00	50.00	52.50	60.00	70.00
ISQ (IS)	52	70.00	75.00	77.25	77.03	79.00	87.00
ISQ (IS)	32	59.50	72.88	76.25	75.58	79.12	85.50
ISQ (IS)	31	59.50	72.50	76.00	75.35	79.25	87.00
ISQ (IS)	25	60.00	72.50	75.50	75.44	75.44	86.00
ISQ (IS)	52	60.00	74.50	77.50	76.57	79.00	86.00