From: Cross-sectional evaluation of clinical and immunological parameters at partially microgrooved vs machined abutments in humans
Implant type
Abutment type
Number
Mean age
SD
Male
Female
Loading time (years)
Tapered internal
LMS
20
61.70
11,662
7
13
3.6
1.27
Bone level
Machined
61.25
13,266
2.6
0.66
Total
40
61.48