Group 1—3 extractions (n = 31) | Group 2—1 extraction (n = 32) | ||||
---|---|---|---|---|---|
Variables | Mean | S.D. | Mean | S.D. | P |
Maxillary component | |||||
SNA (°) | 84.10 | 4.10 | 83.28 | 4.04 | 0.429 |
Co-A (mm) | 82.65 | 3.81 | 83.41 | 3.53 | 0.415 |
Mandibular component | |||||
SNB (°) | 79.32 | 3.98 | 79.26 | 3.06 | 0.946 |
Co-Gn (mm) | 110.95 | 4.59 | 111.96 | 5.89 | 0.451 |
Maxillomandibular relationship | |||||
ANB (°) | 4.77 | 1.75 | 4.02 | 2.19 | 0.137 |
NAP (°) | 171.65 | 4.39 | 172.88 | 4.11 | 0.254 |
Growth pattern | |||||
SN.GoGn (°) | 29.19 | 3.96 | 27.86 | 4.36 | 0.210 |
LAFH (mm) | 63.43 | 4.33 | 62.32 | 4.41 | 0.316 |
Maxillary dentoalveolar component | |||||
Mx1.NA (°) | 24.45 | 5.49 | 25.75 | 7.16 | 0.423 |
Mx1-NA (mm) | 5.53 | 2.44 | 5.50 | 3.86 | 0.971 |
Mx1-PP (mm) | 28.40 | 2.23 | 26.81 | 2.95 | 0.018a |
Mx6-PP (mm) | 20.35 | 2.36 | 19.43 | 1.98 | 0.098 |
Mx Molar asymmetry (mm) | 1.99 | 0.33 | 2.19 | 0.39 | 0.025a |
Mandibular dentoalveolar component | |||||
Md1.NB (°) | 28.82 | 5.01 | 27.85 | 6.02 | 0.489 |
Md1-NB (mm) | 5.87 | 1.41 | 5.94 | 2.10 | 0.872 |
IMPA (°) | 97.56 | 5.83 | 99.22 | 7.93 | 0.350 |
Md1-GoGn (mm) | 35.97 | 2.29 | 35.46 | 2.86 | 0.442 |
Md6-GoGn (mm) | 26.83 | 2.19 | 27.32 | 2.33 | 0.387 |
Md Molar asymmetry (mm) | 2.09 | 0.46 | 1.79 | 0.57 | 0.025a |
Dental relationship | |||||
Overjet (mm) | 4.88 | 1.80 | 4.96 | 1.78 | 0.856 |
Overbite (mm) | 1.89 | 2.31 | 1.97 | 1.10 | 0.863 |
Upper lip | |||||
UL-S line (mm) | 2.41 | 2.42 | 1.41 | 1.98 | 0.077 |
Prn-H (mm) | 0.91 | 4.56 | 3.31 | 4.00 | 0.030a |
Lower lip | |||||
LL-S line (mm) | 3.50 | 3.04 | 1.95 | 2.46 | 0.029a |
Facial convexity and nasolabial angle | |||||
Z Angle (°) | 75.85 | 5.51 | 73.92 | 6.61 | 0.214 |
N’.Sn.Pog’(°) | 156.08 | 5.13 | 157.63 | 6.07 | 0.276 |
Cm.Sn.UL (°) | 105.07 | 8.93 | 101.23 | 8.26 | 0.081 |