Developmental Problems Flashcards
When does central face development begin?
week 4 in utero
When does the upper lip form?
weeks 6-7 in utero
What forms the upper lip during embryological development?
Medial nasal processes merge with each other, and with the maxillary processes of the first arch
The merging of the medial nasal processes forms what?
The primary palate
What forms the secondary palate?
Maxillary processes coming together along the maxillary midline
How much of the hard/soft palate does the secondary palate cover?
90%
What criteria must be met to treat cleft lip?
Patient must be at least: 10 weeks old, 10 lbs., and 10gm %HM
What is it called when the medial nasal process fails to fuse with the maxillary process?
Cleft lip (80% are unilateral)
What is the minimal manifestation of cleft palate?
Bifid uvula
Cleft palate with Pierre Robin sequence is also known as a _________ orofacial cleft.
Syndromic
Name four environmental factors that can cause non syndromic clefts?
Maternal alcohol/cigarette use, folic acid deficiency, corticosteroid use, anticonvulsant therapy
Failure of fusion of the lateral nasal processes with maxillary process is called what?
oblique facial cleft
