Figure 1 Kaplan Meier survival function by baseline ART regimen

Male

5

Female

7

Avarage age

56,08 (40-67)

Smokers (less than 20 sigarettes a day)

4

Diabetes

1

Implant length 11,5 mm

8

Implant length 13 mm

4

Implant diameter 4,3

4

Implant diameter 3,7

8

Insertion torque

> 35 N

ISQ

> 60

Table 1. Patients distributed by main characteristics of the study. For each patient an intraoral Rx was performed at each time: T0 – Surgery day after screwing the definitive abutment and cementing provisional crown T1 – 3 months after surgery, when definitive prothesization was concluded T2 – 6 months after surgery T3 – 12 months after surgery

T0

T1

T2

T3

1

0.2

0.2

0.2

2

0.5

0.55

0.5

3

0.2

0.2

0.2

4

0.4

0.35

0.35

5

0.3

0.3

0.3

6

0.3

0.3

0.3

7

0.6

0.55

0.6

8

0.4

0.4

0.4

9

0.35

0.4

0.4

10

0.4

0.4

0.4

11

0.45

0.45

0.4

12

0.2

0.2

0.2

Avarage± DS

0.35

0.35

0.35

Range

0.2-0.6

0.2-0.55

0.2-0.6

Table2

Study and year

Type of abutment

 

6 months

1 year

 Sapienza study 2014

DA

Non post-extractive

0,35

0,35

Cooper LF. et al. 2010

PA

 

0.4

Oyama K. et al. 2012

PA

0.28

0.38

Grandi et al. 2014

DA

Post-extractive

-

0.11

PA

-

0.58

Canullo et al. 2010

DA

0.35(3months)

0.33(1.5years)

PA

0.36(3months)

0.43(1.5years)

Table3 Datas concerning crestal bone reabsorption in different studies analyzed in literature are shown, compared to the datas of this study.