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Journal of Prosthetic Dentistry

Custom tray modification to accurately capture the lingual sulcus of an edentulous mandible

Published:February 08, 2021DOI:https://doi.org/10.1016/j.prosdent.2020.08.018
      The lingual extension of a mandibular edentulous impression is the most challenging border to determine accurately. Appropriately extending the mandibular lingual flange to assist in stabilizing a removable denture can be obtained with correct understanding of anatomy and function of the floor of the mouth.
      • Boucher C.O.
      Complete denture impression based upon the anatomy of the mouth.
      The lingual flange rests in the alveololingual sulcus, which has an S-shaped curve that extends from the lingual frenum to the premylohyoid fossa and then curves medially from the body of the mandible to the retromylohyoid fossa.
      • Edwards L.F.
      • Boucher C.O.
      Anatomy of the mouth in relation to complete dentures.
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