The Use of Invisalign® System in the Management of the Orthodontic Treatment before and after Class III Surgical Approach

Table 1

Cephalometric analysis. Data before and at the end of the treatment. After a follow-up period of 6 years no variations were observed.

	Normal values (±SD)	Growth variation	Before treatment	After treatment
Facial axis	90° (±3°)	0°	96°	94°
Facial angle	87° (±3°)	±1°/3 years	93°	94°
Frankfort mandibular plane angle	26° (±4°)	−1°/3 years	20°	21°
Lower facial height	47° (±4°)	0°	43°	44°
Mandibular arch angle	26° (±4°)	+0.5°/year	31°	36°
Convexity	+2 mm (±2 mm)	−1 mm/3 years	−1.5 mm	+2 mm
Na-CF-A	54° (±3°)	+1°/3 years	63°	56°
PF-Na-A	90° (±3°)	—	89°	95°
PF-bispinal plane	1° (±3°)	—	−5°	1°
Xi-Pm	66 mm^2 (64–70 mm)	—	65 mm	67 mm
Li-APo distance	1 mm (±2 mm)	0 mm	+2 mm	1 mm
Ls-APo distance	4 mm (±2 mm)	—	+3 mm	+3 mm
Li-APo angle	22° (±4°)	0°	30°	34°
Interincisal angle	130° (±6°)	—	123°	121°
PTV-U6	Age + 3 mm (±2 mm)	1 mm/year	8 mm	13 mm
Overjet	2.5 mm (±2 mm)	—	+1 mm	+3 mm
Overbite	2.5 mm (±2 mm)	—	0 mm	+2 mm
Li-E distance	−2 mm (±2 mm)	—	−8 mm	−4 mm