Orthodontic Treatment Characteristics and Outcomes in an Educational Setting

Table 3

Mean treatment duration, ABO DI scores, and treatment outcomes.

Variable	N	Mean	Std. dev.	Min.	Max.
Treatment duration (months)	287	33.87	10.28	11.21	75.26
DI score	287	15.67	9.08	0.00	51.00
CCA score	287	3.36	2.05
ABO C-R Eval	287	29.10	8.59
“Board quality” scores
ABO C-R < 27 points	130	22.13	4.22	10.00	27.00
ABO C-R ≥ 27 points	157	34.88	6.83	28.00	72.00
ABO DI score
Class I	129	11.75	7.45	2.00	49.00
Class II div 1	93	19.28	8.97	4.00	46.00
Class II div 2	42	17.52	7.62	4.00	33.00
Class III	23	19.70	11.61	0.00	51.00