From: Orthodontic emergencies and mental state of Chinese orthodontic patients during the COVID-19 pandemic
Variables
Or
95% CL
P-value
Orthodontic appliances
 Fixed orthodontic appliances
Reference
 Clear aligners
0.499
(0.367, 0.679)
 < 0.0001
 Removable appliances
0.858
(0.581, 1.268)
0.443
Oral hygiene
0.009