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International Journal of Implant Dentistry

Table 6 Peri-implant bone loss after 20 years

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

− 0.5

4.5

1.7

1.7

1.4

Bone-level butt-joint

41

0

7.2

1.9

2.3

1.7

Bone-level conical

38

0.4

7.4

2.7

3.0

1.6

Total

93

− 0.5

7.4

2.3

2.5

1.7

  1. Presentation of minimal/maximal bone-level values at the end of the study (20 years) according to implant type
  2. sd  standard deviation
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