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 | p ∗ | p |
|---|---|---|---|---|---|---|
| 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.