Oral anatomy review

Primary crown mineralization (calcification) generally begins

• in the 3rd to 36th week in utero

• in the 2nd trimester

• in the 3rd trimester

• at birth

The lowest part of the vestibule next to the mandible or the highest part of the vestibule within the posterior area is the:

• Mucobuccal fold

• Mucolabial fold

• Oral cavity proper

• Vestibular oris

Firm anterior part of the oral roof with mucosa over the underlying bone:

• Hard palate

• Maxillary tuberosity

• Pterygomandiular raphe

• Retroalveolar notch

It is located over the intermaxillary suture line between the right and left maxillary processes:

• Anterior pillar of fauces

• Pterygopalatine arch

• Median palatine raphe

• Pterygopalatine raphe

The following are characteristics of the alveolar mucosa EXCEPT:

• Movable

• Reddish

• Thin

• Firm

Numerous fine hairlike papillae covering the anterior 2/3 of the dorsal surface of the tongue:

• Filiform papillae

• Incisive papillae

• Parotid papilla

• Retromolar papilla

A horizontal groove separating the lower lip from the chin:

• Labiomarginal groove

• Labiomental groove

• Nasolabial groove

• Philtrum

A flap of tissue opposite the upper molars releasing saliva:

• Filiform papilla

• Parotid papilla

• Retromolar papilla

• Incisive papilla

In cementum, the ratio of inorganic to organic contents is approximately:

• 50-50

• 60-40

• 70-30

• 96-4

Which root of 16, 26 is closest to the maxillary sinus?

• Mesiobuccal

• Mesiolingual

• Palatal

• Distobuccal