(Q2) Mouth Flashcards
Superior integumentary lip
Margins:
superior - base of nose
lateral - nasolabial fold
inferior - superior mucous membrane
Remember: integument means “skin”
Philtrum
shallow vertical groove at the midline of the superior integumentary lip
inferior to the columna nasi and superior to the superior mucous membrane
slightly wider at the base than the top
Remember: means “love potion”
Hunter’s Bow
The curved line with a dip in the center
Superior border of the superior mucous membrane
Superior & Inferior Mucous Membranes
Mucous membranes are the red portion
of the lips
A.K.A. - vermillion lips Vermillion means “red”
Where the integumentary lip transitions to the mucous membrane is called the vermillion border
The superior mucous membrane lip is slightly more lateral than the inferior mucous membrane lip at the ends of the line of lip closure
Line of Lip Closure
Part of the Superior & Inferior Mucous Membranes
Where the two mucous membrane lips
meet
May also have the shape of a hunter’s
bow
Medial Lobe of the Lips
Part of the Superior & Inferior Mucous Membranes
small, dipping fullness of the upper lip at the midline
Because of this structure, the superior mucous membrane lip is slightly more anterior than the inferior mucous
membrane
Vertical lines
Part of the Superior & Inferior Mucous Membranes
very fine lines that run vertically in the mucous membrane lips
with age they may extend into the integumentary lips when the become Labial sulci (furrows of age)
Inferior Integumentary Lip
The “soul patch” area
Margins:
Superior - inferior mucous membrane
Lateral - lateral corner of the mouth
Inferior - labiomental sulcus
Labiomental sulcus
labio = lip
mental = chin
The connection point of the inferior integumentary lip and the chin
This sulcus may range from a rather subtle depression to a deep groove
Nasolabial Fold
Where the cheek meets the superior integumentary lip
Cheek protrudes more and causes the skin to fold
These are the lateral borders of the superior integumentary lip
Angulus Oris Eminence
Protrusion caused by the insertion of several muscles at the corner of the mouth
Angulus Oris Sulcus
Small depression where the angulus oris eminence meets the line of lip closure
Bi-lateral Curvature
When viewed from the inferior angle
Mouth should curve back in a “U”
shape
Superior mucous membrane should be
the most anterior
Prognathism
The projection of the jaw
gnatho is Latin for “jaw”
Maxillary prognathism
When the maxillae project more anteriorly than normal
Creates a gap between the teeth with lower teeth further posterior
Mandibular prognathism
Mandible projects more anteriorly than
the maxillae
Gap in teeth with the upper teeth more
posterior
Lower lip will also be more anterior
Alveolar prognathism
Alveolar process (your gums) on maxillae, mandible, or both extends more anteriorly than normal
Dental prognathism
Teeth are angled more anteriorly where they insert in the alveolar process
Infranasal prognathism
Angle of the maxillae at the base of the nasal cavity is angled anteriorly
Mouth Closure Methods
Mandibular suture
Muscular suture
Sublingual suture
Dental tie
Needle Injector
Mandibular suture
Ligature is secured on the mandible bone
Muscular suture
Ligature is secured in muscle tissue
Sublingual suture
Ligature is secured in tissue
under the tongue
Dental tie
Ligature is tied around upper
tooth/teeth and lower
tooth/teeth
Needle Injector
Wire with barb is injected into alveolar tissue
One into maxilla
One into mandible
Wires twisted together
material to form mouth (and tips for use)
Plastic mouth former
Cotton
Dentures
Mastic/Putty
- Try to make bilateral symmetry
- Whichever material is used, place it before embalming begins; Mouth will firm up in this “formed” position
- Cotton removed and replaced with fresh after embalming
