What is a muzzle for a human mouth?

A muzzle for a human mouth, often referred to as a "muzzle device," is a type of restraint used to prevent a person from speaking or making vocal sounds. It can be used in various contexts, such as in mental health settings to prevent self-harm or in certain legal situations. Unlike animal muzzles, human muzzles can take the form of cloth, tape, or specialized devices designed for safety and control. However, their use raises ethical concerns regarding individual rights and autonomy.