Table 2 Patterns of NiTi-RIs’ Discard Strategy & Associated Factors (%)
Main Discard Strategy | Respondents’ Classification (%) | ||||
General Dentists | Endodontists | Others | Total | ||
Number of uses according to teeth type | 51 (35.4) | 43 (41) | 4 (33.3) | 98 (37.5) | |
Number of use regardless teeth type | 36 (25) | 22 (21) | 2 (16.7) | 60 (23) | |
When distorted | 15 (10.4) | 1 (1) | 2 (16.7) | 18 (6.9) | |
Period of time regardless teeth type | 3 (2.1) | 6 (5.7) | 0 (0) | 9 (3.4) | |
Single use in severely curved canal | 18 (12.5) | 29 (27.6) | 2 (16.7) | 49 (18.8) | |
Number of uses according to files’ size | 9 (6.3) | 1 (1) | 0 (0) | 10 (3.8) | |
Period of time according to files’ size | 3 (2.1) | 0 (0) | 0 (0) | 3 (1.1) | |
Loss of cutting efficiency | 9 (6.3) | 3 (2.9) | 2 (16.7) | 14 (5.4) | |
Total | 144 (100) | 105 (100) | 12 (100) | 261 (100) | |
Respondents’ Classification | Single case | 2–5 cases | 6–10 cases | More than 10 cases | Total |
Discard Strategy after performing RCTs in Anterior teeth (%) | |||||
General Dentists | 0 | 18 (35.3) | 27 (52.9) | 6 (11.8) | 51 (100) |
Endodontists | 0 | 33 (76.7) | 10 (23.3) | 0 (0) | 43 (100) |
Others | 0 | 2 (50) | 2 (50) | 0 (0) | 4 (100) |
Total | 0 | 53 (54.1) | 39 (39.8) | 6 (6.1) | 98 (100) |
Discard Strategy after performing RCTs in Posterior teeth (%) | |||||
General Dentists | 9 (17.6) | 33 (64.7) | 6 (11.8) | 3 (5.9) | 51 (100) |
Endodontists | 30 (69.8) | 13 (30.2) | 0 (0) | 0 (0) | 43 (100) |
Others | 2 (50) | 2 (50) | 0 (0) | 0 (0) | 4 (100) |
Total | 41 (41.8) | 48 (49) | 6 (6.1) | 3 (3.1) | 98 (100) |