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Further examples include nigh guard and tooth-bonded plastic. 2. Intra-coronal splints: The stabilising device is placed into a small chamber within the tooth that are milled by the dentist, and bonded or cemented into place. This means the splint is less visible, making it a more aesthetically acceptable option. Examples: Inlays, and nylon wires.
The four classical muscles of mastication elevate the mandible (closing the jaw) and move it forward/backward and laterally, facilitating biting and chewing. Other muscles are responsible for opening the jaw, namely the geniohyoid, mylohyoid, and digastric muscles (the lateral pterygoid may play a role).
Hyperkinesia is a defining feature of many childhood movement disorders, yet distinctly differs from both hypertonia and negative signs, which are also typically involved in such disorders. [4] Several prominent forms of hyperkinetic movements include:
Tongue thrusting is a type of orofacial myofunctional disorder, which is defined as habitual resting or thrusting the tongue forward and/or sideways against or between the teeth while swallowing, chewing, resting, or speaking. Abnormal swallowing patterns push the upper teeth forward and away from the upper alveolar processes and cause open bites.
Coffin–Lowry syndrome is an X-linked disorder resulting from loss-of-function mutations in the RPS6KA3 gene, which encodes RSK2 (ribosomal S6 kinase 2).Multiple mutations have been identified in RPS6KA3 that can give rise to the disorder, including missense mutations, nonsense mutations, insertions and deletions.
Pagophagia (from Greek: pagos, frost/ice, + phagÅ, to eat [1]) is the compulsive consumption of ice or iced drinks. [2] It is a form of the disorder known as pica, which in Latin refers to a magpie that eats everything indiscriminately. [3]
People with misophonia display hypersensitivity to certain pattern-based noises such as the sound of chewing, slurping, finger tapping, foot shuffling, throat clearing, pen clicking, and keyboard tapping; people with misophonia respond to triggering sounds with emotional distress and increased hormonal activity of the sympathetic system. [18]
Freud proposed that if the nursing child's appetite were thwarted during any libidinal development stage, the anxiety would persist into adulthood as a neurosis (functional mental disorder). [2] Therefore, an infantile oral fixation would be manifest as an obsession with oral stimulation.