Implants
number
Bone loss
(mm)
P-value Implant
success
P-value Time
(months)
Gender Male 15 0.41 (SD 0.56, range 0.00 – 1.95) 0.836 14/15 (93.3%) 0.140 22 (SD 6.02; range 14 – 32)
Female 32 0.38 (SD 0.45, range - 0.50 – 1.55) 32/32 (100%) 19 (SD 5.61; range 12 – 35)
Jaw Maxilla 26 0.48 (SD 0.52; range - 0.50 – 1.95) 0.050a 25/26 (96.2%) 0.364 21 (SD 6.01; range 12 – 35)
Mandible 21 0.27 (SD 0.42; range - 0.05 – 1.35) 21/21 (100%) 20 (SD 5.66; range 12 – 32)
Implant diameter 8 mm 24 0.23 (SD 0.42; range - 0.50 – 1.35) 0.008b 24/24 (100%) 0.302 18 (SD 3.69; range 12 – 26)
9 mm 23 0.55 (SD 0.50; range 0.00 – 1.95) 22/23 (95.7%) 22 (SD 6.76; range 13 – 35)
Implant length 7 mm 5 0.79 (SD 0.63; range 0.10 – 1.55) 0.205 5/5 (100%) 0.613 21 (SD 4.44; range 13 – 24)
9 mm 18 0.28 (SD 0.36; range - 0.50 – 0.80) 18/18 (100%) 20 (SD 4.90; range 16 – 32)
11 mm 24 0.38 (SD 0.51; range 0.00 – 1.95) 23/24 (95.8%) 20 (SD 6.70; range 12 – 35)
Smoking Yes 2 0.83 (SD 1.03, range 0.10 – 1.55) 0.426 2/2 (100%) 0.831 19 (SD 7.78; range 13 – 24)
No 45 0.37 (SD 0.46, range - 0.50 – 1.95) 44/45 (97.8%) 20 (SD 5.81; range 12 – 35)
Bone graft No 17 0.43 (SD 0.50; range - 0.15 – 1.55) 0.480 17/17 (100%) 0.395 19 (SD 3.77; range 13 – 28)
Bio-Oss 12 0.53 (SD 0.59; range 0.00 – 1.95) 11/12 (91.7%) 25 (SD 7.75; range 14 – 35)
ICB 14 0.18 (SD 0.29; range - 0.50 – 0.60) 14/14 (100%) 19 (SD 4.48; range 12 – 26)
Nu-Oss 4 0.48 (SD 0.53; range 0.00 – 1.20) 4/4 (100%) 16 (SD 2.38; range 12 – 17)
Prosthetic
restoration
Single crown 38 0.41 (SD 0.45; range 0.00 – 1.95) 0.429 37/38 (97.4%) 0.886 20 (SD 6.02; range 12 – 35)
Fixed partial prosthesis 6 0.27 (SD 0.73; range - 0.50 – 1.55) 6/6 (100%) 18 (SD 3.66; range 13 – 24)
Fixed full prosthesis 3 0.47 (SD 0.42; range 0.00 – 0.80) 3/3 (100%) 23 (SD 6.93; range 19 – 31)
Prosthetic
retention
Screw-retained 45 0.40 (SD 0.48; range - 0.50 – 1.95) 0.103 44/45 (97.8%) 0.880 20 (SD 5.85; range 12 – 35)
Cemented 1 - 0.15 1/1 (100%) 17

aStatistically significant difference in bone loss between maxilla and mandible (Mann-Whitney U test, P < 0.05).
bStatistically significant difference in bone loss between 8 and 9 mm diameter implants (Mann-Whitney U test, P < 0.05).