Quiz 2 - Trump - Embryology Of Head, Face, And Oral Cavity Flashcards
When does central face development begin?
Week 4
Where does central face development happen?
Nasal placodes
-Placodes = thickening
Upper lip formation, when?
Weeks 6-7
Upper lip formation, where?
Medial nasal processes merge w/ each other as well as the maxillary processes of the first branchial arches
The primary palate is made from what?
Merger of the medial nasal process
The secondary palate is formed from what?
Formed from the maxillary processes of the first branchial arches
What is the primary palate? What is the secondary palate?
Primary - Right around the central incisors
Secondary - The rest of the hard palate (90% of it)
Two types are conditions, what are they?
Developmental
Hereditary/Genetic
- Familial
- Congenital
Cleft lip is what?
Defective fusion of the medial nasal process with the maxillary process
80% of cases are unilateral
Treatment for cleft lip?
Rule of 10
- 10 weeks
- 10 lbs
- 10 gm %Hemoglobin
What happens with cleft palate?
Failure of the palatal shelves to fuse
-Minimal manifestation of cleft palate is bifid uvula
What about treatment for cleft palate?
Start only after 1.5 yrs of life
- 45% of cases are cleft lip and cleft palate
- 30% are only cleft palate
- 25% are cleft lip
Some clefting is due to what?
Syndromic
With syndromic clefting, ____% of pts have cleft palate only.
50%
- Most cases in syndromic clefting are cleft palate only
- Most cases in overall clefting are both cleft lip and cleft palate
Tell me about clefting with Pierre Robin.
Cleft palate only
Mandibular micrognathia - small mandible
Glossoptosis - Downward displacement of tongue
Clefting can also occur in a non-syndromic way. Name some environmental factors.
Maternal alcohol or cigarette use
Folic acid deficiency
Corticosteroid use
Anticonvulsant therapy