Exam 1 practice questions Flashcards
Cleft lip is from a defective fusion of:
medial nasal process & maxillary process
Type of cyst that presents in the maxilla between the palatine shelves and primary plate
nasopalatine
What derivative of mesoderm makes skeleton?
somites from paraxial mesoderm
case study: extrusion of dura and arachnoid mater
meningocele
The facial nerve does special sensory to the anterior 2/3 of the tongue. Hypoglossal does sensory to anterior 2/3 of tongue
First statement true, second statement false
Thyroglossal duct cyst and lateral cervical cyst result from ducts and not from invaginating foramen cecum
True
Median rhomboid glossitis is typically found on the lateral tongue. It is typically associated with candida.
First statement is false (should be posterior). Second statement is true
Cervical loops form between OEE and stratum intermedium. They form the CEJ in adults
First statement false. Second statement true
Epithelial diaphragm determines:
number of roots
Odontoma defects occur in the initiation stage. they result in small fragment of dentin, enamel, and cementum.
both statement true
Most common neoplastic lesion in jaw arising from odontogenic epithelium
ameloblastoma
Most common neoplastic lesion arising form odontogenic epithelium
amelobastoma
Case study: tubercle formation is a defect during cap stage. It is common on central incisors.
Both statement are true
What do neural crest cells not make:
enamel
Case study: missing 6 teeth
oligodontia
Twinning tooth with tooth count missing 1
fusion
dentigerous cyst:
attached to CEJ, comprises 20% of all jaw cysts
OKC presents as multilocular lesions. 65% located in mandible.
Both are true