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24 Cards in this Set
- Front
- Back
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birth defects occur in ___ in 1000 births |
2 |
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why do cleft lips & palate occur? |
failure of fusion during 1st trimester -tobacco, alcohol, phenytoin, vitamin A, corticosteroids, drug abuse, folic acid deficiency, inadequate diet |
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when does the formation of lips form? |
4th-7th week |
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when does the formation of palate form? |
8th-12th week |
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what is class 1? |
cleft of tip of uvula |
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what is class 2? |
cleft of uvula (bifid uvula) |
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what is class 3? |
cleft of soft palate |
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what is class 4? |
cleft of soft palate and hard palate |
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what is class 5? |
cleft of soft palate & hard palate that continues through alveolar ridge on 1 side of premaxilla (same side as cleft lip) |
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what is class 6? |
cleft of soft & hard palate that continues through alveolar ridge on both sides leaving a free pre maxilla (bilateral cleft lip) |
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what is class 7? |
-submucous cleft -muscle union is imperfect across the soft palate -closure to pharynx is incompetent |
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which process fail to fuse together? |
globular process & maxillary process fail to come together |
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what issues with tooth development occur with cleft? |
missing or supernumerary teeth commonly missing: maxillary laterals |
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what can open palates cause? |
-communication with nasal cavity -food may go up into nasal cavity -difficult to breast feed |
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how many months for child to have cleft palate surgery? |
18 months |
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what kind of issues may occur? |
-upper respiratory infection -airway obstruction -hearing problems -speech/sounds -breathing -swallowing
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how many months for child to have cleft lip surgery? |
2 months (10 weeks old, 10lbs) |
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what is the purpose of partial closure of palatal cleft? |
aid & feeding |
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what are goals for cleft palate treatment? |
-speech -breathing -occlusion |
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what are secondary surgical procedures for? |
improve communication & appearance involves lips, nose,palate, jaw |
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what is an alveolar graft? |
-support for adjacent teeth
-before eruption of maxillary teeth at cleft side |
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what is hard palate graft? |
-closure for oronasal fisulaw -relieve compromised airway |
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purpose of prosthodontics |
-close palate -replace missing teeth -fill upper lip -chewing -restoration -retainer **need to be kept clean like denture** |
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when should orthodontic treatment be initiated? |
3 years old |
