From: Changes of occlusal plane inclination after orthodontic treatment in different dentoskeletal frames
Measurements | Skeletal class I (n= 30) | Skeletal class II (n= 30) | Skeletal class III (n= 30) | ||||||
---|---|---|---|---|---|---|---|---|---|
Mean ± SD | Mean ± SD | Mean ± SD | |||||||
Pre- | Post- | Differences | Pre- | Post- | Differences | Pre- | Post- | Differences | |
Skeletal frame | |||||||||
SNA°a | 81.99 ± 2.85 | 81.54 ± 3.72 | −0.46 ± 1.57 | 81.33 ± 2.88 | 81.30 ± 2.85 | −0.76 ± 1.15 | 78.33 ± 3.67 | 78.74 ± 3.46 | 0.42 ± 1.21 |
SNB° | 79.32 ± 2.95 | 79.36 ± 3.81 | 0.04 ± 1.35 | 76.60 ± 3.06 | 77.16 ± 2.67 | 0.56 ± 1.40 | 79.45 ± 3.38 | 79.66 ± 3.92 | 0.22 ± 1.38 |
ANB° | 2.68 ± 0.64 | 2.18 ± 0.87 | −0.49 ± 0.99 | 5.44 ± 0.88 | 4.15 ± 1.24 | −1.29 ± 1.11 | −1.11 ± 0.96 | −0.93 ± 1.10 | 0.18 ± 1.22 |
MP-SN° | 31.52 ± 4.04 | 32.09 ± 4.78 | 0.57 ± 1.55 | 34.59 ± 4.71 | 34.75 ± 4.59 | 0.16 ± 1.88 | 32.04 ± 6.00 | 32.07 ± 6.20 | 0.03 ± 1.48 |
Occlusal plane | |||||||||
BOP-SN° | 14.57 ± 3.82 | 15.29 ± 4.29 | 0.72 ± 2.59 | 17.34 ± 4.43 | 18.85 ± 4.12 | 1.51 ± 3.11 | 14.41 ± 4.29 | 14.67 ± 4.72 | 0.26 ± 2.32 |
FOP-SN° | 14.70 ± 4.10 | 14.00 ± 4.68 | −0.69 ± 3.61 | 17.36 ± 4.58 | 17.96 ± 4.44 | 0.60 ± 2.96 | 14.65 ± 4.47 | 14.16 ± 4.78 | −0.49 ± 2.98 |
MxOP-MnOP° | 8.10 ± 2.44 | 3.50 ± 1.43 | −4.60 ± 2.82 | 8.77 ± 3.30 | 3.70 ± 1.08 | −5.07 ± 3.01 | 5.69 ± 3.22 | 3.83 ± 1.38 | −1.86 ± 3.29 |
Dental | |||||||||
Overbite (mm) | 3.79 ± 1.31 | 1.63 ± 0.70 | −2.16 ± 1.46 | 4.30 ± 1.70 | 1.73 ± 0.63 | −2.57 ± 1.51 | 2.34 ± 1.66 | 1.67 ± 0.68 | −0.67 ± 1.71 |
Overjet (mm) | 4.01 ± 1.28 | 2.76 ± 0.58 | −1.25 ± 1.30 | 4.81 ± 1.86 | 2.63 ± 0.57 | −2.18 ± 1.96 | 2.54 ± 1.37 | 2.53 ± 0.66 | 0.24 ± 1.39 |
Maxillary dentoalveolar | |||||||||
U1-SN° | 103.02 ± 6.41 | 108.36 ± 5.91 | 5.33 ± 7.72 | 99.53 ± 6.19 | 105.68 ± 4.74 | 6.16 ± 7.88 | 105.23 ± 5.07 | 109.73 ± 5.98 | 4.50 ± 5.65 |
U1-PP (mm) | 26.29 ± 2.59 | 26.70 ± 2.58 | 0.41 ± 1.54 | 26.66 ± 3.11 | 27.31 ± 3.40 | 0.65 ± 1.21 | 25.49 ± 3.05 | 26.42 ± 3.42 | 0.93 ± 1.51 |
U6-PP (mm) | 19.98 ± 2.22 | 21.30 ± 2.39 | 1.32 ± 1.49 | 19.56 ± 2.64 | 20.83 ± 2.55 | 1.28 ± 1.20 | 20.17 ± 2.55 | 21.67 ± 2.65 | 1.50 ± 1.33 |
Mandibular dentoalveolar | |||||||||
L1-SN° | 54.79 ± 6.33 | 51.20 ± 5.83 | −3.60 ± 6.26 | 49.38 ± 6.96 | 44.65 ± 5.26 | −4.73 ± 4.56 | 59.94 ± 6.69 | 59.10 ± 6.62 | −0.84 ± 5.09 |
L1-MP° | 93.68 ± 6.82 | 96.71 ± 5.31 | 3.03 ± 6.77 | 96.04 ± 6.37 | 100.43 ± 6.06 | 4.40 ± 4.31 | 88.02 ± 5.88 | 88.89 ± 5.79 | 0.87 ± 5.21 |
L1-MP (mm) | 37.30 ± 3.08 | 38.78 ± 3.27 | 1.48 ± 2.28 | 38.21 ± 2.79 | 39.38 ± 3.70 | 1.16 ± 2.47 | 36.23 ± 3.13 | 37.70 ± 3.38 | 1.47 ± 1.09 |
L6-MP (mm) | 27.52 ± 2.30 | 29.91 ± 2.47 | 2.39 ± 1.81 | 27.86 ± 2.58 | 30.69 ± 2.61 | 2.82 ± 1.75 | 26.81 ± 2.46 | 28.79 ± 2.40 | 1.98 ± 1.01 |