Dental Science Quiz 2

Crown shape of maxillary central?

Fan‑shaped.

Incisal angles of maxillary central?

Mesial squared, distal rounded.

Root length of central maxillary central inc. compared to other maxillary teeth?

Relatively short.

Which tooth is the widest in the mouth?

Maxillary central incisor.

Which tooth varies most in form (besides 3rd molars)?

Maxillary lateral incisor.

Common congenital issue with maxillary laterals?

Frequently missing; malformed (clefting).

root charcterstic of maxillary lateral incissors

Single root, may curve distally.

Incisal angles of Maxillary Lateral Incisors

Mesial sharp, distal rounded.

Common esthetic Issue with Maxillary Lateral Incisors

Diastemas

Smallest teeth in permanent dentition?

Mandibular centrals.

Most symmetrical teeth?

Mandibular centrals.

Can you easily tell left vs right of Mandibular Central Incicors?

NO- nearly impossible

How do mandibular laterals compare to centrals?

Slightly larger with longer roots.

Incisal angles of Mandibular Lateral Incors

Mesial sharp, distal rounded.

Distal root surface of Mandibular Lateral Incors

Concave

Which canine has a sharper cusp tip?

Maxillary canine.

Which canine is commonly impacted?

Maxillary canine.

Which canines erupt first?

Mandibular canines.

Lingual surface differences of Mandibular Canine

Mandibular = smoother, less developed cingulum & ridges.

What is a pit?

Pinpoint depression where grooves meet.

Direction of central groove

Mesial → distal.

Which premolar has two roots?

Maxillary first premolar.

crown shape of maxillary first premolar

Pentagon.

Central groove length of Maxillary Second Premolar

short

Occlusal appearance of maxillary second premolar

More supplemental grooves → “wrinkled.”

Lingual cusp function of Mandibular 1st premolar

Small, non‑functional.

Buccal cusp of Mandibular 1st premolar

Long, pointed.

Mesial vs distal outline of Mandibular 1st premolar

Mesial concave; distal rounded.

Mandibular Second Premolar Central groove shape?

V‑shaped.

Mandibular Second Premolar Lingual cusp size?

Nearly equal to buccal.

Name three anomalies.

Enamel pearl, taurodontia, dilaceration.

Key identifier of maxillary first molar?

A: Oblique ridge.

Root spread of Maxillary Molars

Widely spread, especially palatal.

Extra cusp possibility?

Cusp of Carabelli.

second premolar root spread

Less spread; may appear fused near apex.

third molar root pattern

Often fused; irregular.

crown shape of third molar

heart

Mandibular molars has ____ roots

2

tallest cusps of Mandibular Molars

mesial-lingual

Mandibular Molars first molar groove shape

y-pattern

number of cusps in Mandibular Molars second molar

3-buccal

2-lingual

Mandibular Molars second molar groove pattern

plus sign

occlusal shape of second molar Mandibular Molars

rectangular

third molar Mandibular Molars occlusal appearance

wrinkled