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Table 4 Biological and mechanical complications

From: Single-crown restorations supported by short implants (6 mm) compared with standard-length implants (13 mm) in conjunction with maxillary sinus floor augmentation: a randomized, controlled clinical trial

 

Patients,

Short implant, n

Standard length implant and maxillary sinus floor augmentation, n

p* value

Biological complications

11

0

11

0.00

 Intraoperative bleeding

1

0

1

0.46

 Perforation of the Schneiderian membrane

3

0

3

0.09

 Pain and swelling

4

0

4

0.04

 Extensive cicatricial soft tissue

1

0

1

0.46

 Infection

1

0

1

0.46

 Permanent neurosensory disturbance

1

0

1

0.46

Mechanical complications

8

2

6

0.13

 Abutment screw loosening

4

1

3

0.34

 Loss of abutment

1

0

1

0.49

 Loosening of suprastructure

1

0

1

0.49

 Chipping of ceramics

2

1

1

1.00

  1. *Fischer’s exact test