Final answer:
The choice of appliance for correcting an anterior crossbite is influenced by factors such as the patient's age and cooperation, as well as practitioner preference. The amount of overbite is not a typical deciding factor.
Step-by-step explanation:
The appliance of choice to correct an anterior crossbite is determined by several factors, but not typically by the amount of overbite. The age of the patient can influence the choice of appliance, as certain appliances are more suited to the developing dentition of children compared to adults. The cooperation of the patient is crucial as well, especially in the context of removable appliances or treatment protocols that require patient compliance. Lastly, practitioner preference may also play a role, as different orthodontists might have varying experiences or comfort levels with different treatment modalities.