Table 4.
Descriptive analysis of the proportion of remaining carrier-based root canal filling material (%) regarding the non-surgical endodontic retreatment study groups.
| n | Mean | SD | Minimum | Maximum | ||
|---|---|---|---|---|---|---|
| Remaining Root Canal Filling Material | PTR | 33 | 1.43 * | 2.09 | 0.00 | 8.30 |
| RCB50 | 33 | 2.07 * | 2.57 | 0.00 | 10.19 | |
| H-GG | 33 | 3.52 * | 3.66 | 0.00 | 10.60 |
* Statistically significant differences between groups (p < 0.05). PTR: ProTaper Retreatment endodontic rotary instruments; RCB50: Reciproc Blue endodontic reciprocating instrument; H-GG: combined root canal retreatment technique between Gates-Glidden drills and Hedstrom files.