False
Restraint techniques typically involve physical methods (such as the use of handcuffs, straps, etc.) and may also include de-escalation strategies or mental approaches (like calming techniques or verbal communication) to manage a patient's behavior. However, the categorization of restraint methods doesn't usually include "mental" restraint as a formal type. Different systems may categorize restraints in various ways, but the primary focus is generally on physical restraints and non-physical techniques (like verbal de-escalation), rather than dividing them between physical and mental.