Table 2 Surgical data, crown-to-implant ratio, and follow-up data

Residual bone height (mm; median (range))

7.7 (4.2 to 17.6)

12.6 (7.7 to 20.4)

Insertion torque (Ncm; median (range))

42.5 (5.0 to 70.0)

35.0 (5.0 to 70.0)

Bone type (number of implants)

 Type I

4

4

 Type II

44

49

 Type III

33

22

 Type IV

7

13

Antagonist (number of implants)

 Tooth

63

66

 Implant

25

22

Crown to implant ratio (median (range))

1.7 (1.1 to 2.5)

1.3 (0.9 to 2.1)

Immediate loading (number of implants)

49

49

Follow-up since insertion (months; median (range))

31 (11 to 84)

35 (6 to 117)

Follow-up since loading (months; median (range))

27 (4 to 84)

31 (6 to 67)

Follow-up of marginal bone level (months; median (range))

24 (3 to 92)

30 (1 to 96)