M3 Quiz #2 - DH Dental Anatomy/Tooth Morphology ( DHYG1430-Concorde)

On a mandibular canine tooth, which ridge is most nearly horizontal?

mesial cusp ridge

When viewed from the labial/facial, what is the geometric shape of a canine crown?

Pentagon shaped

When looking at a maxillary and mandibular canine, which characteristic(s) can be used to distinguish the mandibular canine?

All of the above *Correct answer*

- A mandibular canine has a less prominent cingulum ( smoother lingual surface.)

- The medial side of a mandibular canine crown and root is relatively straight.

- The mandibular canine cusp tip is more blunt where the maxillary canine cusp tip is sharper

Which characteristic can be used to distinguish the maxillary canine from the mandibular canine?

The cusp of the maxillary canine is more pointed.

Which of the following characteristics is most often true for all incisors and for all canines?

The proximal view outlines are triangular shaped.

Which teeth are known as the "cornerstones" of the arch?

canines

At approximately what age does the permanent maxillary canine tooth erupt?

11-12 years

Like the incisor teeth, the canines develop from how many lobes?

Four (4)

On the canine teeth, where is the facial/labial height of contour (like all teeth)?

In the cervical third of the tooth

Which premolar has a pronounced concavity (fossa) on the cervical part of mesial surface of the crown?

Maxillary first premolar

All anterior teeth and two-cusped premolars form from how many lobes?

Four (4)

The mandibular second premolar often exhibits a linear depression (groove) extending lingually from the central pit, separating the two lingual cusps. This linear depression (groove) is known as the _____________.

Lingual groove

Which tooth replaces the primary mandibular right first molar (tooth "S")?

Tooth #28

If a mandibular second premolar has three cusps, they are called mesiolingual, distolingual, and:

Buccal

Where are the two roots of maxillary first premolars?

buccal and lingual

What part of the mandibular first premolar is referred to as non-functioning?

Lingual cusp

A Y-shaped occlusal groove pattern is characteristic of a:

Mandibular second premolar

Which of the following teeth is most likely to have a large buccal cusp and a much smaller non-functional lingual cusp?

Mandibular first premolar