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1. Which of the following structures forms the roof of the
oral cavity?
a) Soft palate
b) Hard palate
c) Uvula
d) Alveolar process
Answer: b) Hard palate
Rationale: The hard palate is the bony anterior part that
separates the oral and nasal cavities, providing structural
support to the roof of the oral cavity.
2. The orofacial cleft is a congenital defect that occurs due
to the incomplete fusion of which structures?
a) Lip and mandible
b) Maxilla and alveolar process
c) Soft and hard palate
d) Tongue and uvula
Answer: c) Soft and hard palate
Rationale: Orofacial clefts occur when the soft and hard
palate fail to fuse during embryonic development, leading
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