Table 5: Aspects of the training for CBCT by orthodontic specialists in Brazil, by geographic macro-regions (n=939).
| Variables | Total | Brazilian macro-regions | Adjusted residual | p-value | ||||
|---|---|---|---|---|---|---|---|---|
| North | North East | Midwest | South | South East | ||||
| n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | |||
| Have you taken any training/course for using CBCT units or images in orthodontic practice? | ||||||||
| Yes | 260 (37.0) | 11 (28.2)A.B | 35 (39.3)A.B | 54 (45.8)B | 36 (26.3)A | 124 (38.8)A.B | -2.9 (2.2) | 0.014* |
| No | 443 (63.0) | 28 (71.8)A.B | 54 (60.7)A.B | 64 (54.2)B | 101 (73.7)A | 196 (61.3)A.B | ||
| Not answered | 236 | |||||||
| Where was this training/course in CBCT? | ||||||||
| During undergraduate training | 2 (0.8) | 0 (0) | 0 (0) | 1 (1.9) | 0 (0) | 1 (0.8) | -0.6 (1.0) | 0.828 |
| Specialty programs in orthodontics | 127 (50.2) | 6 (54.5) | 22 (64.7) | 27 (51.9) | 17 (48.6) | 55 (45.5) | -1.4 (1.8) | 0.388 |
| Specific CBCT course | 65 (25.7) | 3 (27.3) | 4 (11.8) | 19 (36.5) | 8 (22.9) | 31 (25.6) | -2.0 (2.0) | 0.146 |
| Other | 59 (23.3) | 2 (18.2) | 8 (23.5) | 5 (9.6) | 10 (28.6) | 34 (28.1) | -2.6 (1.7) | 0.103 |
| Not answered | 686) | |||||||
| When was this CBCT training/course? | ||||||||
| Around 1 year ago | 61 (24.2) | 3 (27.3) | 8 (23.5) | 14 (27.5) | 9 (25.0) | 27 (22.5) | -0.6 (0.2) | 0.967 |
| Around 5 years ago | 102 (40.5) | 4 (36.4) | 19 (55.9) | 24 (47.1) | 11 (30.6) | 44 (36.7) | -1.3 (2.0) | 0.162 |
| Around 10 years ago | 64 (25.4) | 4 (36.4) | 5 (14.7) | 8 (15.7) | 12 (33.3) | 35 (29.2) | -1.8 (1.3) | 0.117 |
| Other | 25 (9.9) | 0 (0.0) | 2 (5.9) | 5 (9.8) | 4 (11.1) | 14 (11.7) | -1.1 (0.9) | 0.681 |
| Not answered | 687 | |||||||
| How long was this CBCT training/course? | ||||||||
| Less than 4 hours | 1 (0.4) | 0 (0.0) | 0 (0.0) | 1 (2.0) | 0 (0.0) | 0 (0.0) | -1.0 (2.0) | 0.420 |
| From 4 to 8 hours | 133 (53.4) | 5 (45.5) | 22 (66.7) | 30 (58.8) | 20 (58.8) | 56 (46.7) | -2.1 (1.6) | 0.214 |
| More than 8 to 20 hours | 77 (30.9) | 4 (36.4) | 8 (24.2) | 18 (35.3) | 6 (17.6) | 41 (34.2) | -1.8 (1.1) | 0.320 |
| More than 20 hours | 36 (14.5) | 2 (18.2)A.B | 3 (9.1)A.B | 1 (2.0)B | 8 (23.5)A | 22 (18.3)A | -2.8 (1.7) | 0.026* |
| Other | 2 (0.8) | 0 (0.0) | 0 (0.0) | 1 (2.0) | 0 (0.0) | 1 (0.8) | -0.6 (1.0) | 0.828 |
| Not answered | 690 | |||||||
| Was a state/province/government-recognized certificate granted? | ||||||||
| Yes | 67 (26.5) | 4 (6.3) | 6 (5.4) | 16 (10.7) | 12 (6.3) | 29 (7.2) | -0.8 (1.7) | 0.015 |
| No | 186 (73.5) | 7 (11.1) | 28 (25.2) | 36 (24.0) | 24 (12.6) | 91 (22.6) | ||
| Not answered | 686 | |||||||
Pearson’s Chi-square test: Statistically significant results for bivariate analysis (p<0.05). Post-hoc Bonferroni test: different letters indicate statistically significant differences among the macro-regions, with p< 0.05* and bold adjusted residuals ±2.80.