Table 2.
Sample demographics table. DFD, dentofacial disharmony; OJ, overjet; OB, overbite; ANB, A-point-nasion-B-point; IMPA, incisor mandibular plane; FMA, Frankfort-mandibular plane; SN-GoGn, Sella-nasion-gonion-gnathion.
| Patients with Class III DFD | Control/reference subjects | |
|---|---|---|
| Age in years (mean) | 20.50 (n = 102) | 24.40 (n = 62) |
| Age in years (range) | 12–55 | 17–38 |
| Gender | 52.00% female (n = 53) 48.00% male (n = 49) |
59.70% female (n = 37) 40.30% male (n = 25) |
| Race and ethnicity | 33.30% African American (n = 34) 4.90% Asian/Pacific Islander (n = 5) 46.10% Caucasian (n = 47) 9.80% Hispanic/Latino (n = 10) 5.90% Southeast Asian/Indian (n = 6) |
9.70% African American (n = 6) 8.10% Asian/Pacific Islander (n = 5) 66.10% Caucasian (n = 41) 8.10% Hispanic/Latino (n = 5) 8.10% Southeast Asian/Indian (n = 5) |
| Bonded labial appliances (current braces) | 31.40% (n = 32) | 4.83% (n = 3) |
| OJ mean, range (in mm) | −3.50 (range −17 to 7) | 2.44 (range 1 to 4) |
| OB mean, range (in mm) | 0.54 (range −7 to 6) | 2.45 (range 1 to 4) |
| Ceph mean, ranges: | ||
| ANB mean, range (in degrees) | −3.07 (range −12.40 to 3.90) | N/A |
| IMPA (in degrees) | 84.95 (range 62.80 to 103.60) | N/A |
| Wits (mm) | −10 (range −25.20 to 2.50) | N/A |
| FMA (in degrees) | 24.65 (range 10 to 64.6) | N/A |
| SN-GoGn (in degrees) | 30.26 (range 14.10 to 47.60) | N/A |