Dental Anatomy Chapter 5 Quiz

Upper front teeth.

Lower front teeth.

The incisor tooth beside the central incisor.

The middle incisor tooth.

Fang-shaped tooth used for tearing food.

The visible part of a canine tooth; single cusp.

Tearing food, part of chewing, helps to look nice.

The arrangement of teeth in either the upper or lower jaw.

Incisors are the front teeth designed for cutting and biting food.

There are four maxillary incisors and four mandibular incisors.

Abnormal space between the two central incisors

Incisor crowns have trapezoid, square, or rectangular outlines, with the smallest uneven side near the gum line.

Each tooth has five aspects: Facial, Lingual, Mesial, Distal, and Incisal.

Contact areas are found in the incisal third of the tooth, near the mesioincisal and distoincisal angles.

The front surface of the incisor is smooth and slightly rounded, with a peak near the gum line.

Incisor root development takes several years, completing around 10-11 years of age.

A tooth that supplements the central incisor in function, resembling it in most aspects but smaller and rounded.

Maxillary central incisors are larger than lateral incisors.

Maxillary central incisors have a sharper mesio-incisal angle (90 degrees), while lateral incisors have a rounder one.

Maxillary central incisors have a smooth and shallow lingual fossa, while lateral incisors have a smaller, deeper one.

Maxillary incisors are wider mesiodistally (front-to-back) compared to mandibular incisors, which are wider faciolingually (front-to-back).

Maxillary incisors have well-developed marginal ridges, while mandibular incisors have less developed ridges.

Maxillary incisors have better developed elevations/outlines than mandibular incisors.

Mesial contact at the junction of the incisal and middle third, distal contact at the center of the middle third.

The upper canine root tapers from the neck to a blunt point. Its end may curve slightly towards the lip.

The lower canine root's outline is mostly straight until the root's third, then tapers to a more pointed end.

The root surface has longitudinal grooves, usually deeper distally than mesially, and varying in depth between upper and lower canines.

Lower canines sometimes have a split root near the tip, a phenomenon that may extend to the neck.

Maxillary (upper) canines may have a small bump on the lingual surface (cingulum) and/or lingual pits, and can vary in the length of their roots.

The lateral incisor located in the lower jaw, positioned next to the central incisor. The distal ridge is more prominent than the mesial ridge.

The crown is tilted heavily towards the tongue (lingual) side, resulting in a more diamond-shaped outline.

The crown leans less lingually compared to the maxillary lateral incisor, Its outline is typically round or square.

It lacks a central pit, a characteristic that helps differentiate it from a mandibular lateral incisor.

The buccal ridge of the maxillary first premolar is prominent and well-defined.

The buccal ridge of the maxillary second premolar is less prominent than the first.

The buccal cusp of the maxillary first premolar is large and sharp, used for tearing.

The buccal cusp of the maxillary second premolar is smaller and blunt.

The mesial slope of the maxillary first premolar is longer than the distal slope.

The mesial slope of the maxillary second premolar is shorter than the distal slope.

The maxillary first premolar crown tapers towards the cervix.

The maxillary second premolar crown is broad at the cervix.