An<unk>  is a component used to retain a custom-made medical device in the mouth. The<unk>  functions by engaging the mesiobuccal and distobuccal undercuts of a tooth, typically the maxillary first molar and is used to retain a wide range of devices prescribed in a variety of medical and dental specialties.
Adams clasp
The Lion's Mouth Opens
Cramp
Digitate wart
Ear pick
Splinter skill
Ulysses pact
Chew and spit