This is a common problem and the dental ( orthodontic brace that used a palatal crib design seems to have been more effective than a palatal arch design.
2.
Some of these questions are geared toward tongue protrusion and an opening of lips when the client is in repose; habitual mouth breathing; digit sucking; existence of high and narrow palatal arch; ankyloglossia ( tongue-tie ); malocclusions, ( Class II, III ); weak chewing muscles ( masseter ); weak lip muscles ( orbicularis oris ); overdeveloped chin muscles ( mentalis ); muscular imbalance; abnormal dentition.
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