Dentistry: Mandibular Central Incisors Characteristics

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What is the unique characteristic of mandibular central incisors in terms of contact points compared to maxillary incisors?

Contact points are near incisal ridges mesially & distally (correct)

Contact points are closer to the root of the tooth

Contact points are near the middle of the tooth

Contact points are near the gingival margin

What happens to the mamelons on the incisal ridge of mandibular central incisors after eruption?

They disappear if the occlusion is normal (correct)

They remain prominent throughout life

They increase in size gradually

They move towards the gingival margin

How does the incisal ridge of mandibular central incisors relate to a line bisecting the root?

The incisal ridge is at the same level as the line bisecting the root

The incisal ridge is superior to the line bisecting the root

The incisal ridge is lingual to the line bisecting the root (correct)

The incisal ridge is buccal to the line bisecting the root

What is a distinguishing feature of mandibular central incisors in terms of their root length compared to maxillary central incisors?

The root length is longer than maxillary central incisors Signup and view all the answers

Which aspect of mandibular central incisors makes them distinct from other permanent teeth in terms of width?

They have the narrowest width labiolingually Signup and view all the answers

What is the eruption age range of mandibular lateral incisors?

7-8 years Signup and view all the answers

How does the lingual surface of mandibular lateral incisors compare to that of mandibular central incisors?

Lingual surface is devoid of developmental grooves Signup and view all the answers

Where is the height of labial contour in mandibular lateral incisors located?

At the cervical third Signup and view all the answers

Which statement is TRUE regarding the mesiodistal width of the crown in mandibular lateral incisors?

It is 1 mm more than that of mandibular central incisor Signup and view all the answers

In a worn tooth, what kind of incisal edge is seen on mandibular lateral incisors?

Labial slope Signup and view all the answers

How does the distal contact area of mandibular lateral incisors compare to the mesial contact area?

Distal contact area is more cervical than mesial Signup and view all the answers

What is a characteristic feature of the incisal ridge of the tooth described?

Straight and at a right angle to the long axis of the tooth Signup and view all the answers

Which aspect of the tooth shows a concave surface from the incisal edge to the cervical line?

Lingual aspect Signup and view all the answers

What is a distinguishing characteristic of the mesial outline of this tooth near the cervical third?

Convex Signup and view all the answers

Which surface of the tooth has a well-defined developmental groove at the center?

Distal aspect Signup and view all the answers

What bilateral symmetry feature is seen on the incisal aspect of this tooth?

Incisal edge at right angle to line bisecting the crown labiolingually Signup and view all the answers

What distinguishes this tooth specifically in differentiating between Central Incisor (CI) and Lateral Incisor (LI)?

The wider labial surface mesiodistally than lingual Signup and view all the answers

Dentistry: Mandibular Central Incisors Characteristics

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