Tensile Strength of Novel Nonabsorbable PTFE (Teflon®) versus Other Suture Materials: An In Vitro Study
Table 2
Tensile strength of various absorbable and nonabsorbable sutures according to immersion time in synthetic saliva.
Suture material
Immersion time
Mean ± SD
Min
Max
PG
Baseline
26.67 ± 3.11
20.02
30.69
0.180
0.522
Day 3
27.55 ± 1.67
25.13
30.20
0.546
Day 7
27.01 ± 1.59
22.78
29.76
0.341
Day 14
27.49 ± 2.02
6.77
7.92
0.271
Day 21
28.14 ± 0.89
6.73
7.49
0.252
BS
Baseline
14.58 ± 1.64
10.12
15.72
0.001
0.001
Day 3
12.81 ± 2.25
7.75
15.87
0.329
Day 7
9.91 ± 9.90
8.54
11.87
0.270
Day 14
12.87 ± 0.78
12.28
14.91
0.001
Day 21
12.54 ± 0.95
11.48
14.57
0.110
PTFE
Baseline
7.52 ± 0.94
4.88
8.22
0.001
0.094
Day 3
7.59 ± 0.27
7.23
8.10
0.582
Day 7
7.84 ± 0.26
7.34
8.21
0.661
Day 14
7.48 ± 0.29
6.77
7.92
0.100
Day 21
7.21 ± 0.23
6.75
7.49
0.433
The tensile strength values are means ± standard deviations expressed in Newtons. PG: polyglactin; BS: black silk; PTFE: polytetrafluoroethylene (Teflon). Shapiro–Wilk normality test; Two-way ANOVA test; Kruskal–Wallis test.
