Case Report
Orthodontic Treatment of Bilateral Impacted Mandibular Canines and a Mupparapu Type 2 Transmigration
Table 1
Ricketts cephalometric measurements.
| | Initial | Final | Norm | Std dev |
| | Dental relationships | | Molar relation (mm) | −0.1 | −2.3 | −3.0 | 1.0 | | Overjet (mm) | 5.8 | 2.7 | 2.5 | 2.5 | | Overbite (mm) | 4.8 | −0.1 | 2.5 | 2.0 | | Mand incisor extrusion (mm) | 2.4 | −0.1 | 1.2 | 2.0 | | Interincisal angle (U1-L1) (°) | 141.3 | 111.8 | 130.0 | 6.0 | | Skeletal/dental | | U-incisor protrusion (U1-APo) (mm) | 3.3 | 6.3 | 3.5 | 2.3 | | L1 protrusion (L1-APo) (mm) | −2.0 | 3.6 | 1.0 | 2.3 | | U-incisor inclination (U1-APo) (°) | 17.3 | 32.8 | 28.0 | 4.0 | | L1 to APo (°) | 21.3 | 35.4 | 22.0 | 4.0 | | Occ plane to FH (°) | 15.1 | 10.4 | 7.5 | 5.0 | | U6-PT vertical (mm) | 9.5 | 16.5 | 17.0 | 3.0 | | Maxillo-mandibular relationships | | Convexity (A-NPo) (mm) | 2.1 | 2.4 | 0.9 | 2.0 | | Mandibular arc (°) | 36.7 | 43.8 | 29.7 | 4.0 | | Craniofacial relation | | FMA (MP-FH) (°) | 30.2 | 20.4 | 24.2 | 4.5 | | Maxillary depth (FH-NA) (°) | 87.0 | 97.1 | 90.0 | 3.0 | | Facial axis-Ricketts (NaBa-PtGn) (°) | 92.4 | 92.0 | 90.0 | 3.5 | | Facial angle (FH-NPo) (°) | 84.5 | 94.5 | 88.3 | 3.0 | | Facial taper (°) | 65.3 | 65.1 | 68.0 | 3.5 | | Deep skeletal structure | | Porion location (mm) | −36.0 | −37.6 | −38.6 | 2.2 | | Cranial deflection (°) | 19.6 | 29.8 | 27.3 | 3.0 | | Ramus position (°) | 64.9 | 71.2 | 76.0 | 3.0 | | Lower face height (ANS-Xi-Pm) (°) | 34.8 | 36.1 | 45.0 | 4.0 | | Esthetic | | Lower lip to -plane (mm) | −1.7 | −1.1 | −2.0 | 2.0 |
|
|
