Surgical Orthodontic Treatment of a Patient Affected by Type 1 Myotonic Dystrophy (Steinert Syndrome)

Table 1

Pretreatment cephalometric analysis.

	Case	Norm
Facial angle	78.2	88.3
Convexity angle	17.1	5
SNA	79.2	80.2
SNB	71.7	77
ANB	7.5	3.2
Mandibular angle	57.6	22.4
-axis	78.9	57.3
Occlusal angle	37.6	9
Interincisal angle	121.4	129
Li-occlusal plane	8	18.4
Li-mandibular plane	−12	4.8
Ui/SN	94.6	105
Ui/A-Pg	8.7	5
Li/A-Pg	8.2	1.3
ML/SNL	63.1	/
NL/SNL	12	/
Rotational type	P1NOB	/
Growth category	2	/