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A mouthguard is a protective device for the mouth that covers the teeth and gums to prevent and reduce injury to the teeth, arches, lips and gums. An effective mouthguard is like a crash helmet for teeth and jaws. It also prevents the jaws coming together fully, thereby reducing the risk of jaw joint injuries and concussion. [1]
The focus of improvement in appliance design is in reducing bulk, permitting free jaw movement (permitting yawning, speaking, and drinking), and allowing the user to breathe through the mouth (early "welded gum shield"-type devices prevented oral breathing). [citation needed]
Several important dentists helped to advance dental braces with specific instruments and tools that allowed braces to be improved. In 1819, Christophe François Delabarre introduced the wire crib, which marked the birth of contemporary orthodontics, and gum elastics were first employed by Maynard in 1843. Tucker was the first to cut rubber ...
The fixed functional appliances have to be bonded to the teeth by an orthodontist. A removable functional appliance does not need to be bonded on the teeth and can be removed by the patient. A removable appliance is usually used by patients who have high degree of compliance with their orthodontic treatment.
Gum shields ideally have to be comfortable for users, retentive, odourless, tasteless and the materials should not be causing any harm to the body. [28] However, studies in various high-risk populations for dental injuries have repeatedly reported low compliance of individuals for the regular using of mouthguard during activities. [ 29 ]
The Damon system of orthodontics is one of many fixed, passive, self-ligating methods of correcting malocclusions. Passive self-ligating systems use brackets that do not require elastic o-rings to hold the wires in place. By not using the elastic o-rings, it is said that the wires freely slide through the slots without friction.