Nonextraction Management of Severely Malaligned and Constricted Upper Arch

Table 2

Posttreatment cephalometric analysis.

Variable	Pretreatment	Posttreatment
SNA	77°	78°
SNB	80°	80°
ANB	-3°	-2°
SN to maxillary plane	8°	10°
SN to mandibular plane	30°	32°
Wits appraisal	-5 mm	-3 mm
Upper incisor to maxillary plane angle	110°	117°
Lower incisor to maxillary plane angle	85°	93°
Interincisal angle	142°	127°
U6–PTV	11.9 mm	10.3 mm
L6–PTV	13.2 mm	12.4 mm
Maxillary-mandibular plane angle	22°	20°
Upper anterior face height	51 mm	54 mm
Lower anterior face height	63 mm	64 mm
Face height ratio	55%	54%
Lower incisor to APo line	4 mm	3 mm
Lower lip to Ricketts plane	-4 mm	-2 mm
Upper lip to Ricketts line	-6 mm	-3 mm
Nasolabial angle	119°	100°
Mand length (co-Pog)	113 mm	115 mm
Max length (co-A)	86 mm	87 mm
Max/mand differential	27 mm	28 mm