Complete Denture - L2 - Anatomy

  1. Extra Oral Landmarks
    • Inter pupillary line - parallel to the anterior Occlusal plane
    • Ala- Tragus Line - parallel to The posterior Occlusal plane
    • Canthus-Tragus Line - the Condyl’s hinge axis is 11-13 mm from the Tragus of the ear on this line
    • Vermillion Border - thin w/o teeth support; restored w/ denture.
    • Vermillion Border - The transitional epithelium between the mucous membrane of the lip and the skin.
    • Naso-Labial Sulcus - becomes deep After extraction; can be restored by complete denture.
    • Naso-Labial Angle - becomes more obtuse after extraction; restored to 90 by a complete denture.
    • Mento-Labial Sulcus - Angle class [I]: Normal; [II]:
    • Retruded mandibular position; [III]: Protruded mandiblular position.
    • Modiolus - Sunken cheeks appearance and dropped angle observed by loss of maxillary teeth; restored by Maxillary Complete Denture. Influence the labial flange thickness of the maxillary denture.
  2. Modiolus
    • Intersection Point of the facial expression muscles.
    • Situated laterally and slightly superiorly to the corner of the mouth.
  3. Muscles intersect at the modiolus
    Buccinator, Orbicularis Oris, Platysma, Risorius, Zygomaticus Major, Levator Labii Superioris, levator Anguli Oris and Depressorn Anguli Oris.
  4. Mento-Labial Sulcus:
    Horizontal depression between the Lower lip and Chin.
  5. Naso-Labial Angle
    • The angle between the Columella of the Nose and the
    • Philtrum of Lip.
    • Normally is 90 in profile view.
  6. Naso-Labial Sulcus
    • Depression that extends from the ala of the nose in a
    • downward and lateral direction to the corner of the mouth.
  7. Ala- Tragus Line
    • Camper’s Line
    • Imaginary line between the Inferior border of the Ala of the nose and the superior border of the Tragus of the ear.
  8. Canthus-Tragus Line
    Imaginary line between the outer canthus of the eye and the superior border of the tragus of the ear.
  9. Philtrum
    becomes flattened after extraction; can be restored by a complete denture.
  10. Philtrum
    Diamond-shaped area between the center of the upper lip and the base of the nose.
  11. Intra Oral Landmarks
    • - Supporting Structures
    • - Limiting Structures
  12. Resistance to the dislodging forces along the path of placement:
  13. Resistance to displacement by functional horizontal or rotational stresses.
  14. Resistance to the tissue-word forces and provided by the foundation area on which the denture rest:
Card Set
Complete Denture - L2 - Anatomy
Complete Denture - L2 - Anatomy