Oral Pathology

Question 1

Cleft Lip vs Cleft Palate

Answer 1

• Cleft lip
  
  • medial nasal process + Maxillary process
• Cleft Palate
  
  • palatal shelves

Question 2

CL and CP epidemiogy

Answer 2

• CL + CP=45%
• CPO=30%
• CL=25%

Question 3

Lateral Facial Clefts

Answer 3

• no fusion of Maxillary and mandibular processes
• Extends from upper lip to eye
  
  • associated with CP
• Associated with:
  
  • Ellis-van Creveld syndrome
  • oral facial digital syndrome

Question 4

What condition?

Answer 4

Lateral Facial Cleft

Question 5

Bifid Uvula

Answer 5

• Minimal manifestation of CP
• 1 of 10 Asian and Native American

Question 6

What condition?

Answer 6

Bifid Uvula

Question 7

Submucosal palatal clefts

Answer 7

• intact surface mucosa
• defects in underlying musculature of soft palate

Question 8

Pierre-Robin Sequence

Answer 8

• CP, mandibular micrognathia, and glossoptosis
• isolated/associated with:
  
  • stickler
  • velocardiofacial syndrome
• Retruded Mandible results in
  
  • posterior displacement of tongue
  • lack support of tongue musculature
  • airway obstruction
• SOX9 gene involved

Question 9

DiGeorge Syndrome

Answer 9

• Absent or hypoplastic thymus, defective cellular immunity, and tetany
• CATCH-22 (CHROMOSOME 22 abnormality)
  
  • Cardiac anomaly
  • Abnormal facies
  • Thymic aplasia
  • Cleft palate
  • Hypocalcemia/Hypoparathyroidism

Question 10

Commissural Lip Pits

Answer 10

• corner of mouth on vermillion border
• failure of embryonal maxillary and mandibular process
• Higher prevalence of preauricular pits
  *

Question 11

Paramedian Lip Pits

Answer 11

• Congenital Invagination of Lower Lip
• seen in 3 syndromes:
  
  • Ven der Woude Syndrome
  • Popliteal Pteryium syndrome
  • Kabuki syndrome