LIP / ORAL MUCOSA LACERATION

Question 1

Structures

Answer 1

Skin
Vermillion Border
Oral Mucosa
Orbicularis Oris

Question 2

Sensory Innervation: lower lip vs. upper lip

Answer 2

Lower lip: submandibular n.
Upper lip: infraorbital n.

Question 3

Physical Exam

Answer 3

Inspect laceration, teeth, mucosa
Inspect for teeth injury, oprn bone

Question 4

Management: Lip Laceration

Answer 4

Vermillion Border: 6-0 nonabsorbable monofilament (Ethilon)
IRRIGATE THEN
Mucosal Layer: 5-0 rapidly absorbable (Vicryl rapide) interrupted
IRRIGATE THEN
Orbicularis Oris: 4-0 absorbable (monocryl) interrupted
IRRIGATE THEN
Vermillion / Skin: 6-0 non-absorbabe monofilament (Ethilon)

Question 5

Management: Intraoral Laceration

Answer 5

Small (< 1 cm) no treatment needed

Larger: 4-0 absorbable (vicryl rapide) - insert needel 2 to 3 mm from edge of wound. Interrupted 5-7 mm apart. Include only mucosa.