From: Peri-implant bone-level changes in the second decade of loading with regard to the implant–abutment connection: a retrospective study on implants under systematic aftercare
Implant type
n
Min. bone loss
Max. bone loss
Median
Mean
sd
Tissue-level conical
14
0.2
2.4
1.0
1.2
0.8
Bone-level butt-joint
41
0
7.2
1.7
1.6
Bone-level conical
38
5.3
1.9
1.4
Total
93