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Table 4 Explantations of implants per membrane type up to 20 years after implant insertion

From: Retrospective analysis of 10,000 implants from insertion up to 20 years—analysis of implantations using augmentative procedures

Membrane type

Implants

(n)

Min/max observation time (years)

Lost implants % (n)

Absolute survival rate %

p value

No membrane

6439

0.0/20.2

4.77 (307)

95.23

 

Geistlich Bio-Gide

2743

0.0/16.2

3.76 (103)

96.24

0.4462

Geistlich Bio-Gide combined with other membranes

279

0.0/10.2

3.23 (9)

96.77

0.7809

Gore-Tex

230

0.4/18.5

5.65 (13)

94.35

0.1671

Vicryl

224

0.0/18.4

6.70 (15)

93.3

0.6808

Tefgen

81

0.2/16

2.47 (2)

97.53

0.1638

BioVin M

65

0/1.9

1.54 (1)

98.46

0.7816

Tutodent

49

0.1/5.9

8.16 (4)

91.84

0.0555

Resodont

21

0.1/3.6

14.29 (3)

85.71

0.0021

Kollagen Vlies

10

0.1/9.7

30.0 (3)

70

0.0006

Ossix

8

8.0/8.9

0.00 (0)

100

0.4781

Osseoguard

4

2.3/3.2

0.00 (0)

100

0.7061

Curasan InionGTR

3

1.0/1.0

0.00 (0)

100

0.7694

Epigide

2

4.9/4.9

0.00 (0)

100

0.7680

Total

10158

0.0/20.2

4.53 (460)

95.47

 
  1. Metric parameters were calculated using descriptive statistics. P values for pairwise comparison vs. no membrane were calculated in accordance to Kaplan and Meier using log-rank test