Lingual orthodontic treatment duration: performance of two different completely customized multi-bracket appliances (Incognito and WIN) in groups with different treatment complexities

Table 5 Treatment duration by complexity of malocclusion and appliance type

Effect	p-value
Severity of Malocclusion	<.0001
Appliance Type	<.0001
*Severity Maloccl Appliance**	0.13
Sex	0.73
*Severity Maloccl Sex**	0.78
*Appliance Sex**	0.44
*Severity Maloccl Appliance * Sex**	0.63
Age (grouped < = / >16Y)	0.81
*Severity Maloccl Age**	0.75
*Appliance Age**	0.85
*Severity Maloccl Appliance Age*	0.33
*Sex Age**	0.51
*Severity Maloccl Sex * Age**	0.64
*Appliance Sex * Age**	0.61
*Severity Maloccl Appliance * Sex * Age**	0.75

*denotes interactions between factors.
Results of the four-factorial ANOVA which was used to investigate the impact of the factors treatment complexity/severity of malocclusion (S1, S2), appliance type (Incognito/WIN), sex (f = 0,m = 1), and age group (0 = <=16, 1= >16 years).
There was a significant influence of severity of malocclusion and type of appliance, but no other significant effect or interaction between any investigated factors.

ISSN: 1746-160X