Dental Anatomy Module 6 Quiz

Questions and Answers

Primate spaces in the primary dentition are usually located:

In the mandibular arch, between the canine and lateral incisor

In the maxillary arch, between the lateral incisor and canine (correct)

In the mandibular arch, between the first and second molar

In the maxillary arch, between the canine and first molar

In the maxillary arch, which of the following facilitates the eruption of the larger incisors to replace the primary incisors?

Labial eruption path of the permanent incisors (correct)

Expansion of the midpalatal suture

Primate spacing between the primary canine and first molar

Increase in arch length due to growth in the tuberosity region

In the primary dentition, the terminal plane of the mandibular second primary molar is located behind the terminal plane of the maxillary second primary molar. What is the molar classification for this patient?

Distal step terminal plane (correct)

Class III terminal plane

Mesial step terminal plane

Flush terminal plane

In the primary dentition, which of the following relationships is most common?

Mesial step terminal plane Signup and view all the answers

The early mesial shift occurs at the time of the:

Eruption of the first permanent molars Signup and view all the answers

Leeway space is:

Due to differences in the size of posterior primary and permanent teeth Signup and view all the answers

What percentage of patients with a flush terminal plane relationship in the mixed dentition will develop into a Class I molar relationship in the permanent dentition?

75% Signup and view all the answers

In the maxillary arch, the incisor liability is approximately:

7 mm Signup and view all the answers

The profile of a newborn infant can best be described as:

Convex Signup and view all the answers

The mandibular arch form of a newborn infant is:

V-shaped Signup and view all the answers

In a child, a lack of primate spaces in the dentition should be interpreted as:

Crowding of the permanent teeth is likely to occur Signup and view all the answers

Study Notes

Primate Spaces

Located in the maxillary arch between the lateral incisor and canine.
Essential for accommodating the eruption of larger permanent incisors.

Eruption Facilitation

The labial eruption path of permanent incisors in the maxillary arch aids in replacing primary incisors.

Molar Classification

Distal step terminal plane is characterized by the mandibular second primary molar being behind the maxillary second primary molar.

Common Relationships in Primary Dentition

Mesial step terminal plane is the most frequently occurring relationship in primary dentition.

Early Mesial Shift

Occurs during the eruption of the first permanent molars.

Leeway Space

Results from differences in size between posterior primary and permanent teeth, playing a vital role in the early mesial shift.

Flush Terminal Plane Development

About 75% of patients with a flush terminal plane in mixed dentition transition to a Class I molar relationship in permanent dentition.

Incisor Liability

The incisor liability in the maxillary arch is approximately 7 mm, indicating the need for space for permanent incisors.

Newborn Profile

Newborn infants typically exhibit a convex facial profile.

Mandibular Arch Form

The mandibular arch form in newborns is V-shaped, indicating differences from older children and adults.

Lack of Primate Spaces

Absence of primate spaces in a child's dentition suggests a high likelihood of permanent teeth crowding in the future.

Description

Test your knowledge of primate spaces in the primary dentition with this quiz based on Module 6. Answer questions about the location of these spaces in the maxillary and mandibular arches to enhance your understanding of dental anatomy.