Cleft Lip & Palate Flashcards
(17 cards)
Frontonasal process forms:
1) Nose
2) Central part of the upper lip (the
philtrum)
3) Central part of the alveolar process (the part which carries the central and lateral incisors).
The first pharyngeal arch gives rise to:
1) Maxillary process
2) Mandibular process
The maxillary process gives rise to:
1) Lateral parts of the upper lip
2) Lateral parts of the alveolus
3) Palatine shelves (fuse to form palate)
The mandibular processes fuse to form:
1) Lower lip
2) Mandible
The cleft lip and cleft alveolus result from:
Non-fusion of the frontonasal process
with either one or both maxillary processes (Frontonasal + Maxillary)
= Resulting in left, right, or bilateral cleft.
Cleft palate results from:
Non fusion of the palatine shelves
The incidence of cleft lip is __ times that of cleft palate.
Two
In cleft lip, 60% of the cases affect the ___ side.
Left
Cleft lip is more common in __(males/females), while cleft palate is more common in __(males/females).
Males; Females
Etiology of cleft lip/palate?
Unknown. Could be:
1) Genetic
2) Environmental:
a) Vitamin deficiency in pregnancy (Folic acid)
b) Drugs as steroids
c) Gestational viral infections or irradiation
d) Loss of amniotic fluids
What type of problems does cleft lip cause?
ONLY aesthetic problems
Most surgeons prefer to repair cleft lip at ___ of age.
3 months
Cleft alveolus may lead to:
Abnormal teething
Which teeth does Cleft alveolus typically affect?
1) Lateral incisors
2) Canines
What should be done for cleft alveolus?
1) Orthodontic treatment to correct the alignment of the alveolar arch
2) Alveolar bone graft
Why is an alveolar bone graft done?
To allow the eruption of the permanent canine
At what age should an alveolar bone graft be done?
8-9 years
