Table 2.
Confusion matrix of orthodontic parameters for skeletal analysis and their comparison with others’ methods
| Diagonal accuracy | |||||||
|---|---|---|---|---|---|---|---|
| Proposed | Lindner et al. (Lindner et al. 2016) | Arik et al. (Arik et al. 2017) | |||||
| ANB | Pred 1 | Pred 2 | Pred 3 | 80.72 | 79.90 | 77.31 | |
| True 1 | 65.75 | 10.96 | 23.29 | ||||
| True 2 | 23.64 | 70.91 | 5.45 | ||||
| True 3 | 4.96 | 0.83 | 94.21 | ||||
| SNB | Pred 1 | Pred 2 | Pred 3 | 83.13 | 78.80 | 70.11 | |
| True 1 | 73.24 | 4.23 | 22.54 | ||||
| True 2 | 38.46 | 58.97 | 2.56 | ||||
| True 3 | 5.04 | 0.00 | 94.96 | ||||
| SNA | Pred 1 | Pred 2 | Pred 3 | 72.69 | 73.81 | 66.72 | |
| True 1 | 67.62 | 16.19 | 16.19 | ||||
| True 2 | 18.89 | 80.00 | 1.11 | ||||
| True 3 | 25.93 | 3.70 | 70.37 | ||||
| ODI | Pred 1 | Pred 2 | Pred 3 | 81.53 | 81.75 | 75.04 | |
| True 1 | 82.14 | 6.25 | 11.61 | ||||
| True 2 | 33.33 | 66.67 | 0.00 | ||||
| True 3 | 15.55 | 0.91 | 85.55 | ||||
| APDI | Pred 1 | Pred 2 | Pred 3 | 84.34 | 89.26 | 87.18 | |
| True 1 | 82.14 | 6.25 | 11.61 | ||||
| True 2 | 33.33 | 66.67 | 0.00 | ||||
| True 3 | 15.55 | 0.91 | 85.55 | ||||
| FHI | Pred 1 | Pred 2 | Pred 3 | 84.74 | 63.51 | 69.16 | |
| True 1 | 82.14 | 6.25 | 11.61 | ||||
| True 2 | 33.33 | 66.67 | 0.00 | ||||
| True 3 | 15.55 | 0.91 | 85.55 | ||||
| FMA | Pred 1 | Pred 2 | Pred 3 | 81.93 | 81.92 | 78.01 | |
| True 1 | 82.14 | 6.25 | 11.61 | ||||
| True 2 | 33.33 | 66.67 | 0.00 | ||||
| True 3 | 15.55 | 0.91 | 85.55 | ||||
| MW | Pred 1 | Pred 3 | Pred 4 | Pred 5 | 80.32 | 79.59 | 81.31 |
| True 1 | 75.00 | 1.19 | 17.86 | 5.95 | |||
| True 3 | 0.00 | 89.76 | 2.04 | 8.16 | |||
| True 4 | 13.89 | 0.00 | 86.11 | 0.00 | |||
| True 5 | 15.91 | 13.64 | 0.00 | 70.45 | |||
Results are shown as percentage (%)
Abbreviations: ANB angle between A-point, nasion and B-point, SNB angle between sella, nasion and B-point, SNA angle between sella, nasion and A-point, Overbite depth indicator (ODI) sum of the angle between the lines from A-point to B-point and from Menton to Gonion, and the angle between the lines from Orbitale to Porion and from PNS to ANS, Anteroposterior dysplasia indicator (APDI) sum of the angle between the lines from Orbitale to Porion and from Nasion to Pogonion, the angle between the lines from Nasion to Pogonion and from Subspinale to Supramentale, and the angle between the lines from Orbitale to Porion and from PNS to ANS, Facial height index (FHI) ratio of the posterior face height (distance from Sella to Gonion) to the anterior face height (distance from Nasion to Menton), Frankfurt mandibular angle (FMA) angle between the lines from sella to nasion and from gonion to gnathion, Modified Wits Appraisal (MW) the distance between Lower incisal incision and Upper incisal incision