Table 5.

Survival rate and number of implants depending on the investigation interval (implant level in the mandible)

Investigation interval (months)	Number of implants	Failed implants	Survival rate intervals (%)
0 < , ≤ 12	1040	3	100–99.7
12 < , ≤ 24	1037	0	99.7
24 < , ≤ 36	1037	1	99.7–99.6
36 < , ≤ 48	1036	0	99.6
48 < , ≤ 60	956	0	99.6
60 < , ≤ 72	899	0	99.6
72 < , ≤ 84	787	1	99.6–99.5
84 < , ≤ 96	707	0	99.5
96 < , ≤ 108	555	0	99.5
108 < , ≤ 120	461	0	99.5
120 < , ≤ 132	381	0	99.5
132 < , ≤ 144	339	2	99.5–98.9
144 < , ≤ 156	301	0	98.9
156 < , ≤ 168	184	0	98.9
168 < , ≤ 180	117	0	98.9
180 < , ≤ 192	49	0	98.9
192 <	4	0	98.9