Dental Anatomy Chapter 5 Quiz

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Questions and Answers

Which of the following characteristics is NOT associated with canines?

Dark yellow color

Longest tooth in the dental arch

Single cusp structure

Two cusps (correct)

What is the chronological order of the calcification stages for canines?

Beginning of calcification, enamel organ appearance, root completion

Enamel organ appearance, crown completion, eruption (correct)

Beginning of calcification, eruption, thickness of enamel

Crown completion, eruption, root completion

Which aspect of a maxillary canine is characterized by a cervical ridge?

Distal aspect

Mesial aspect

Labial aspect (correct)

Lingual aspect

Which statement regarding the lateral and central incisors is correct?

Lateral incisors have a smaller size than central incisors. Signup and view all the answers

What unique feature distinguishes the labial aspect of the canine?

Convex outline with maximum convexity at the cervical ridge Signup and view all the answers

What aspect of a lower canine is NOT typically recognized?

Occlusal aspect Signup and view all the answers

Which of the following tooth characteristics is related to the maxillary canine?

Four lobes with three labial and one lingual Signup and view all the answers

What is the significance of canine eminence?

Affects the esthetic appearance of the face Signup and view all the answers

What is the main function of incisors?

Cutting and incision Signup and view all the answers

Which of the following describes the chronological order for central incisors from enamel organ appearance to eruption?

5 m.i.u, 3-4 m, 4-5 y, 7-8 y Signup and view all the answers

What shape is typically observed at the facial and lingual aspects of incisors?

Trapezoid, square, or rectangular Signup and view all the answers

Where are the contact areas of incisors primarily located?

In the incisal third Signup and view all the answers

What describes the shape of the upper canine's root?

Tapered from the cervical line to a blunt pointed apex. Signup and view all the answers

What is a midline diastema?

An abnormal space between central incisors Signup and view all the answers

How does the depression on the root surface of the lower canine compare to that of the upper canine?

The depression in the lower canine is deeper and may cause bifurcation. Signup and view all the answers

Which pair of attributes describes the angles of incisors?

Sharp mesioincisal angle and rounded distoincisal angle Signup and view all the answers

In which aspect is the tip of the cusp in canines typically displaced?

Labially and mesially. Signup and view all the answers

What is characteristic of the labial surface of newly erupted incisors?

It is smooth and convex Signup and view all the answers

What characteristic may be observed in the apical third of the canine root?

It may show mesial or distal curvature. Signup and view all the answers

At what ages do the roots of central incisors typically complete?

10-11 years Signup and view all the answers

What is a notable variation observed in the maxillary canine?

A cusp-like tubercle on the cingulum. Signup and view all the answers

What is a key difference in size between the maxillary central and lateral incisors?

The central incisor is larger than the lateral incisor. Signup and view all the answers

Which of the following describes the mesio-incisal angle of the maxillary lateral incisor?

Round and rounded Signup and view all the answers

How does the lingual fossa of the maxillary lateral incisor compare to that of the maxillary central incisor?

The lingual fossa of the lateral incisor is smoother and shallower. Signup and view all the answers

What is unique about the cingulum of the maxillary lateral incisor compared to the central incisor?

The cingulum of the lateral incisor is tilted distally while the central is centered. Signup and view all the answers

What is a primary distinguishing feature of maxillary incisors as compared to mandibular incisors?

Maxillary incisors are wider mesiodistally. Signup and view all the answers

How does the incisal edge of the maxillary central incisor align compared to the mandibular incisor?

It is at one line with the long axis of the root. Signup and view all the answers

What feature is often absent in both maxillary central and lateral incisors in a small percentage of individuals?

Lingual pit Signup and view all the answers

Which incisor type is likely to exhibit a peg shape variant?

Maxillary lateral incisor Signup and view all the answers

How does the buccal cusp tip of the tooth positioned at the same level but more occlusally compare to the one at the same level?

It is located at the center of the crown. Signup and view all the answers

What characteristic differentiates the mesial slopes of the cusp between the two tooth positions?

Both slopes are equal in length. Signup and view all the answers

Which feature is associated with the crown that is tilted severely to the lingual?

It has one very short, non-functioning cusp. Signup and view all the answers

In terms of width, how does the more occlusally positioned tooth compare to the tooth at the same level?

It is less converging and wider. Signup and view all the answers

How do the characteristics of the central pit differ between the two tooth positions?

The central pit is present in the more occlusally positioned tooth. Signup and view all the answers

What shape does the occlusal aspect of the upper 2nd premolar resemble?

Oval Signup and view all the answers

How do the buccal cusps of the upper 1st and 2nd premolars compare in size?

The 1st is larger and sharper Signup and view all the answers

Which statement accurately describes the mesial marginal groove of the upper 1st premolar?

It is present Signup and view all the answers

What characterizes the roots of the upper 1st premolar compared to the upper 2nd premolar?

The 1st has two roots Signup and view all the answers

Which groove is typically longer in the upper 1st premolar compared to the upper 2nd premolar?

Central groove Signup and view all the answers

In terms of cusp tips, how do the upper 1st and 2nd premolars differ?

Cusp tips are closer together in 1st premolar Signup and view all the answers

Which feature differentiates the lingual cusp of the upper 2nd premolar from that of the upper 1st premolar?

It is less than buccal by 1mm Signup and view all the answers

What does the presence of supplemental grooves indicate about the upper 2nd premolar compared to the upper 1st premolar?

More supplemental grooves Signup and view all the answers

Study Notes

Images and Captions

Images of Niagara Falls, overloaded trucks, camel warning sign, a wall with square openings, a car overloaded, a building under construction, and diagrams of teeth. Various images of various subjects, from a taxi and some people to teeth from different angles and perspectives

Teeth Anatomy

There are four maxillary and four mandibular premolars
Premolars have 4 lobes
Mandibular second premolars have 2 or 3 cusps
The first premolar has 5 aspects: buccal, lingual, mesial, distal, and occlusal
Canines have 5 aspects: labial, lingual, mesial, distal, and incisal
The maxilla lateral incisor supplements the central incisor in function and resembles it in all aspects but is smaller and rounded.
Central incisors are the biggest and widest of all the incisors
An abnormal space between the two central incisors is called a midline diastema

Tooth Chronology

Enamel organ appearance (5 months in the incisors
Beginning of calcification (3–4 months in the incisors)
Crown completion (4–5 years in the incisors)
Eruption (7-8 years in the incisors)
Root completion (10–11 years in the incisors)
Enamel organ appearance (6–8 months in the canines)
Beginning of calcification (4–5 months in the canines)
Crown completion (6–7 years in the canines)
Eruption (9–10/11–12 years in the canines)
Root completion (12–14/14–15 years in the canines)
Enamel organ appearance (7 months in the premolars)
Beginning of calcification (1.5–2 years in the premolars)
Crown completion (5–6 years in the premolars)
Eruption (10–11 years in the premolars)
Root Completion (12–13 years in the premolars)

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Description

Test your knowledge on dental anatomy with this quiz focused on canines and incisors. Answer questions related to their characteristics, developmental stages, and unique features. Perfect for students studying dentistry or dental hygiene.