Dental Anatomy: Contact Areas and Incisal Third

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What is the principal identifying feature of the permanent mandibular lateral incisor?

More visible mesial surface than the distal surface

More visible buccal surface than the lingual surface

More visible lingual surface than the labial surface (correct)

More visible occlusal surface than the incisal surface

Which surface is less visible in the permanent mandibular lateral incisor according to the text?

Distal surface (correct)

Mesial surface

Buccal surface

Incisal surface

In terms of visibility, which surface ranks highest in the permanent mandibular lateral incisor?

Occlusal surface

Buccal surface

Incisal surface

Lingual surface (correct)

Which feature distinguishes the permanent mandibular lateral incisor from other teeth?

Well-defined lingual surface Signup and view all the answers

What makes the permanent mandibular lateral incisor easily recognizable among teeth?

Prominently visible lingual surface Signup and view all the answers

Which statement about the contact areas is correct?

They are located at the junction between the middle and incisal thirds of the crown. Signup and view all the answers

Which statement describes the broad middle and distal lines?

They are straight (slightly convex). Signup and view all the answers

How is the distal incisal angle described in relation to the middle incisal angle?

The distal incisal angle is more rounded than the middle incisal angle. Signup and view all the answers

Which of the following statements is NOT mentioned in the text?

The contact areas are located at the junction between the cervical and incisal thirds of the crown. Signup and view all the answers

What is the correct order of the statements made in the text?

3, 1, 2, 4 Signup and view all the answers

What is the description referring to?

The anatomical features of a maxillary central incisor tooth Signup and view all the answers

Which statement accurately describes the labial outline of the tooth?

It is straight above the cervical curvature Signup and view all the answers

How is the lingual outline of the tooth described?

It has a shallow concavity ending at the blunt incisal ridge Signup and view all the answers

What is the relationship between the incisal ridge and the line bisecting the root?

The incisal ridge is lingual to the line bisecting the root Signup and view all the answers

Based on the description, which of the following statements is true?

The tooth has a straight labial outline and a shallow lingual concavity Signup and view all the answers

What is the incisal edge?

The cutting or biting edge of an anterior tooth Signup and view all the answers

In which direction is the incisal edge twisted?

Lingually Signup and view all the answers

What is the purpose of twisting the incisal edge in a lingual direction?

To follow the curvature of the lower arch Signup and view all the answers

Which teeth are typically associated with the incisal edge?

Incisors and canines Signup and view all the answers

What is the significance of the number '7' in the given text?

It has no specific meaning in the context provided Signup and view all the answers

Which of the following best describes the tooth being referred to in the given text?

Maxillary lateral incisor Signup and view all the answers

What is the significance of the number '2' mentioned in the text?

It refers to the tooth's position in the dental arch. Signup and view all the answers

Which of the following statements is true regarding the maxillary lateral incisor?

It is one of the anterior teeth used for cutting and tearing food. Signup and view all the answers

What can be inferred about the mandibular central incisors based on the given information?

They are larger than the maxillary lateral incisors. Signup and view all the answers

Which of the following crown shapes is associated with the maxillary lateral incisor?

Fan-shaped Signup and view all the answers