Table 4.
Comparison of categorical variables according to the apex locator integrated engine-driven instrumentation preference
| Test statistics | p* | |||
|---|---|---|---|---|
| Apex locator-integrated engine-driven instrumentation preference | ||||
| Yes | No | |||
| Year of graduation | ||||
| 1980–1989 | 7 (43.8) | 9 (56.3) | 3.565 | 0.468 |
| 1990–1999 | 6 (37.5) | 10 (62.5) | ||
| 2000–2009 | 10 (35.7) | 18 (64.3) | ||
| 2010–2019 | 74 (51) | 71 (49) | ||
| 2020- | 34 (42.5) | 46 (57.5) | ||
| Workplace | ||||
| Public Hospital | 21 (65.6) | 11 (34.4) | 5.682 | 0.058 |
| Private Practise | 68 (44.2) | 86 (55.8) | ||
| University Hospital | 42 (42.4) | 57 (57.6) | ||
| Title | ||||
| General Dentist | 73 (51.4) | 69 (48.6) | 8.807 | 0.066 |
| Endodontic residents/Ph.D. students | 11 (32.4) | 23 (67.6) | ||
| Endodontist | 21 (35.6) | 38 (64.4) | ||
| Pediatric Dentistry residents/Ph.D. students | 15 (60) | 10 (40) | ||
| Pediatric Dentist | 11 (44) | 14 (56) | ||
| Do you experience any discrepancies when performing the main cone gutta-percha fit on teeth instrumented with an apex locator-integrated engine-driven endomotor? | ||||
| Extrude | Short | |||
| Do you perform passive measurements before instrumentation to determine the working length, in addition to using an apex locator-integrated engine-driven? | ||||
| Yes | 8 (29.6) | 19 (70.4) | –- | 0.275* |
| No | 5 (50) | 5 (50) | ||
| Do you perform passive measurements after instrumentation to determine the working length, in addition to using an integrated apex locator? | ||||
| Yes | 8 (42.1) | 11 (57.9) | 0.323 | 0.570** |
| No | 5 (27.8) | 13 (72.2) | ||
| Which kinematics do you prefer for the apex locator-integrated engine-driven mode? | ||||
| Reciprocation-Rotation | 6 (33.3) | 12 (66.7) | 0.839 | 0.804*** |
| Reciprocation | 3 (50) | 3 (50) | ||
| Rotation | 4 (30.8) | 9 (69.2) | ||
*Fisher’s Exact test
**Yates Correction
***Fisher-Freeman-Halton test