Lingual vestibule

By Dr.Swathi Pai on Friday, January 9, 2009 with 0 comments

It may not be possible to achieve a border seal without a correct lingual flange, which is divided into three areas. What are they?

Stability is increased when extending the lingual flanges into the vestibules as far as possible. These flanges present "favorable inclined planes" which help maintain the mandibular denture in place.

  1. Anterior lingual =sublingual crescent area. Influenced mainly by the genioglossus muscle (retention) which raise and protrude the tongue.

  2. Middle vestibule =mylohyoid area: (stability) Mainly influenced by the mylohyoid muscle, which acts to raise the floor of the mouth.

  3. Distolingual vestibule =lateral throat form or retromylohyoid fossa. Bounded anteriorly by the mylohyoid muscle, laterally by the pear shaped pad, posterolaterally by the superior constrictor, posteromedially by the palatoglossus muscle and medially by the tongue.

The posterior limit of the mandibular denture is determined mainly by what two muscles? Palatoglossus and the superior constrictor.

If a patient present with a chief complaint of a sore throat what might be the contributing factor?

Superior constrictor

Category: Prosthodontics Notes



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