*S4 - Permanent Teeth

Mandibular anterior teeth typically show wear on the ___ surface.

Labial

Maxillary anterior teeth show wear on the ___ surface.

Lingual

Posterior permenant molars decrease in overall crown height and have fewer ___.

Cusps

Permanent molars tend to have more secondary and teriary anatomy on their___ surfacees.

Occlusal

The roots of Permanent molars are shorter and closer together so it may be ___.

Fused

Each tooth begins to develope from four or more growth centers which grow out from the tooth germ and are known as ___.

Developmental Lobes

The lobes grow and develop within their bony crypt until they fuse is called ___.

Coalescense

All anterior teeth develop from __ lobes.

Four lobes: three labial and one lingual

What are the three labial developmental lobes?

Mesiofacial, centrofacial, and distofacial.

One lingual lobe makes up ___ on lingual surface of anterior tooth.

Cingulum

Maxillary premolars have ___ facial lobes that form one high buccal cusp.

3

The lingual lobe of a maxillary premolar forms a single large lingual cusp, which is usually ___ on the second premolar.

How many incisors are there in the permanent dentition?

8

The ___ feature broad lingual fossa bordered by cingulum; mesial and distal marginal ridges.

Incisors

The incisors are derived from ___ developmental lobes.

4

What is the incisal 3rd, very near or approaching the incisal angle for maxillary incisors?

Mesial Contact Area

What is near the junction of the incisal and middle 3rd of a contact area of maxillary incisors?

Distal

Mandibular Central Incisors: Labial Aspect - What is the universal numbers for this tooth?

#24 and #25

Mandibular Central Incisors: Labial Aspect - Much ___ mesial-distal than maxillary central.

Narrower

Mandibular Central Incisors: Labial Aspect - Less ___ facial surface than maxillary central.

Convex

Mandibular Central Incisors: Labial Aspect - Nearly ___ viewed from the labial.

A. Symmetrical

B. Asymmetrical

Symmetrical