Restorative Art - Chapter 6 - Mouth

Superior mucous membrane or upper lip

The upper margin has the shape of the classic hunting bow. The medial lobe is found in the center of the membrane. Narrows laterally as it disappears before reaching the end of the line of closure. Contains two high peaks slightly off center on either side of a dipping curve.

Labial Sulci

The vertical furrows on the lip extending from within the mucous membranes into the integumentary lips

Philtrum

The vertical groove located on the superior integumentary lip, The width, form, and depth are different from person to person.

Weather Line

the line of color change at the junction of the wet and dry portions of each mucous membrane.

mucous membrane

the visible red surfaces of the lip; the lining membrane of the body cavities that open to the exterior

Medial lobe

tiny prominence on the midline of the superior mucous membrane

Vertical lines of the mucous membrane

Fine vertical lines located on the mucous membrane.

Inferior mucous membrane or lower lip

Is thicker than the superior mucous membrane. Lies posterior to the upper mucous membrane.

Types of Prognathism

Maxillary - the superior jaw (maxilla) prodrudes mandibular - the inferior jaw (mandible) prodrudes Dental (buck teeth) Alveolar - sockets of the teeth are inclined

Prognathism

Projection of the jaw or jaws.

Superior Integumentary Lip

The area between the base of the nose and the superior margin of the superior mucous membrane

Mouth

The cavity in which mastication takes place. The beginning of the alimentary canal.

Angulus oris sulcus

The groove at each end of the line of closure of the mouth.

Line of closure

The line that forms between the two mucous membranes when the mouth is closed and the lips come in contact with each other. Usually located at the lower border of the upper teeth. Has the shape of the classic hunting bow.

Inferior Integumentary Lip

The part between the inferior margin of the inferior mucous membrane and the mental eminence.