Table 5 Inferential statistical analysis of scalpel blade deformation parameters.
From: SEM morphological analysis of the deformation on disposable scalpels used in dentistry
Outcome variable | Comparison factor | Statistical test | Result | Significance |
|---|---|---|---|---|
Presence of deformation | Incision length (Subgroups 1–4) | Chi-square / ANOVA* | Progressive increase from Subgroup 1 to 4 | P < 0.05 |
Presence of deformation | Blade type (No. 11 vs. No. 15) | ANOVA | No difference | P > 0.05 |
Presence of deformation | Manufacturer (Benefis vs. Ysis) | ANOVA | No difference | P > 0.05 |
Deformation length | Incision length (Subgroups 1–4) | One-way ANOVA | Significant increase with incision length | P < 0.05 |
Deformation length | Blade type (No. 11 vs. No. 15) | One-way ANOVA | Blade No. 15 shows greater deformation length | P < 0.05 |
Deformation length | Manufacturer (same blade type) | One-way ANOVA | No difference | P > 0.05 |
Deformation width | Incision length (Subgroups 1–4) | One-way ANOVA | Significant increase with incision length | P < 0.05 |
Deformation width | Blade type (No. 11 vs. No. 15) | One-way ANOVA | Blade No. 11 shows greater deformation width | P < 0.05 |
Deformation width | Manufacturer (same blade type) | One-way ANOVA | No difference | P > 0.05 |
