Case Report

Orthodontic Treatment of Bilateral Transposition of Maxillary Canines and Lateral Incisors

Table 1

Lateral cephalometric readings.

MeasurementNormBefore treatmentAfter treatment14-month follow-up

Age18 years 02 months20 years 10 months22 years 01 month
Skeletal pattern
SNA (°)87°88°87°88°
SNB (°)82°85°84°84°
ANB (°)
Face plane angle87°89°88°90°
Convexity (NA-Apo) (mm)4 mm4 mm3 mm4 mm
Wits (mm)-1-2 mm-4 mm-3 mm-3 mm
Occipital plane to SN (°)
S.n. GoGn (°)32-34°27°29°28°
-Axis (SGn.SN) (°)66-68°63°65°64°
Incisor relations
U1-NA (°)22°22°21°23°
U1-NA (mm)7 mm7 mm5 mm6 mm
U1-NB (°)38°31°29°32°
L1-NB (mm)10 mm7 mm6 mm8 mm
APo (mm)8 mm7 mm6 mm8 mm
Soft tissues
Holdaway angle (°)20°21°20°20°