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. 2023 Jul 3;23:491. doi: 10.1186/s12909-023-04474-z

Table 2.

Paired t-test showing the mean difference between self-assigned scores and that of clinical assessors at each assessment criteria in each encounter

1st
encounter
2nd encounter 3rd
encounter
4th
encounter
5th encounter Total
Criteria MD ± SD MD ± SD MD ± SD MD ± SD MD ± SD MD ± SD
Clinical knowledge and judgment
1. Clinical examination, diagnosis and treatment planning 0.96 ± 1.0*** 0.46 ± 1.1* 0.75 ± 0.6*** 0.53 ± 1.0** 0.48 ± 1.0* 0.63 ± 0.9***
2. Demonstrates understanding of indications, dental materials and used technique 0.85 ± 1.1*** 0.07 ± 1.1 0.71 ± 0.9*** 0.46 ± 0.9* 0.66 ± 1.0** 0.55 ± 1.0***
Professionalism, patient management and ergonomics
3. Obtaining patient consent after explaining the procedure and possible complications 1.60 ± 0.8*** 0.70 ± 1.3* 1.00 ± 0.9*** 0.80 ± 1.0*** 0.89 ± 1.2** 1.02 ± 1.1***
4. Pre-procedural preparation 0.59 ± 0.9** 0.32 ± 1.2 0.67 ± 0.8*** 0.37 ± 1.0* 0.45 ± 1.2 0.48 ± 1.0***
5. Infection control 0.65 ± 0.8*** 0.31 ± 0.9* 0.12 ± 0.8 0.37 ± 1.1* 0.40 ± 1.1* 0.37 ± 0.9***
6. Pain, anxiety management 0.93 ± 1.2*** 0.42 ± 1.0* 0.83 ± 0.8*** 0.46 ± 1.1* 0.69 ± 1.0** 0.67 ± 1.0***
7. Communication skills with patient and team 1.15 ± 1.0*** 0.56 ± 1.2* 0.41 ± 1.0* 0.46 ± 1.2* 0.70 ± 0.9*** 0.66 ± 1.1***
8. Patient education 0.42 ± 0.9* 0.41 ± 1.1* 0.52 ± 1.1* 0.17 ± 0.8 0.36 ± 1.1 0.38 ± 1.0***
9. Time management 0.22 ± 0.9 0.15 ± 0.9 0.51 ± 1.0* 0.03 ± 1.0 0.16 ± 1.2 0.21 ± 1.0*
10. Ergonomics 0.53 ± 0.7*** 0.09 ± 1.3 -0.03 ± 0.9 0.10 ± 0.9 0.31 ± 0.8* 0.20 ± 0.9*
Tooth preparation
11. Isolation 0.33 ± 0.8* 0.24 ± 0.9 0.53 ± 0.9** -0.03 ± 0.8 -0.38 ± 1.0* 0.13 ± 0.9
12. Initial and final access (over-/under-extension/adjacent tooth damage) 0.52 ± 1.0* 0.26 ± 1.1 0.28 ± 1.0 0.06 ± 1.1 0.06 ± 1.1 0.22 ± 1.0*
13. Caries removal 1.00 ± 0.9*** 0.46 ± 0.9* 0.58 ± 0.8** 0.20 ± 1.0 0.14 ± 1.0 0.46 ± 1.0***
14. Unsupported enamel removal 0.25 ± 0.9 0.06 ± 1.1 -0.16 ± 1.3 -0.33 ± 1.0 -0.13 ± 0.9 -0.05 ± 1.1
Tooth restoration
15. wedging and matrix placement 0.33 ± 1.0* -0.17 ± 1.2 0.12 ± 0.9 -0.33 ± 1.1 -0.15 ± 0.9 -0.03 ± 1.1
16. Etching and bonding (Composite) 0.53 ± 0.7** 0.30 ± 1.0 0.40 ± 1.0 0.00 ± 0.7 (P > 0.99) -0.11 ± 0.9 0.24 ± 0.9**
17. Cavosurface (excess/submargination) 0.58 ± 0.8** 0.12 ± 1.0 0.18 ± 0.7 0.03 ± 0.7 0.12 ± 1.0 0.20 ± 0.9**
18. Color matching and/or surface polishing -0.19 ± 1.1 -0.26 ± 1.1 0.10 ± 0.8 -0.34 ± 1.1 -0.40 ± 1.0* -0.22 ± 1.0*
19. Axial anatomy (buccal, lingual, proximal, contact point) 0.22 ± 1.0 -0.21 ± 1.1* -0.27 ± 1.1 0.03 ± 1.2 0.03 ± 0.8 -0.03 ± 1.0
20. Occlusal/Incisal edge anatomy (not to be evaluated in class III or V) 0.00 ± 1.3 (P > 0.99) -0.77 ± 1.5* -0.40 ± 1.0* -0.20 ± 0.9 -0.38 ± 1.0* -0.34 ± 1.1**
21. Occlusion 0.80 ± 1.1** 0.09 ± 1.5

0.00 ± 0.8

(P > 0.99)

-0.14 ± 0.8 0.00 ± 1.2 (P > 0.99) 0.16 ± 1.1
22. Overall performance assessment 0.77 ± 0.7*** 0.31 ± 0.9* 0.25 ± 1.3 0.22 ± 0.88 0.29 ± 1.0 0.36 ± 1.0***

MD: Mean difference, SD: Standard deviation which is at a 90% confidence interval. Positive values indicate that trainees’ scores are higher than that of assessors and negative values indicate the opposite. *p < 0.10, **p < 0.01, ***p < 0.001