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 system
Implant/abutment connection
n
Ankylos©
Bone-level conical (morse-taper)
38 (41%)
Branemark©
Bone-level butt-joint (external hex)
41 (44%)
ITI Bonefit©
Tissue-level conical (internal)
14 (15%)