17 Questions
What is the unique characteristic of mandibular central incisors compared to maxillary incisors in terms of contact points?
Contact points are near incisal ridges mesially and distally.
What happens to the mamelons on the incisal ridge of mandibular central incisors after eruption?
They are worn off if the occlusion is normal.
What is the inclination of the incisal surfaces (edge) of mandibular central incisors?
Labial inclination.
Where is the incisal ridge of mandibular central incisors in relation to a line bisecting the root?
Lingual to the line bisecting the root.
What is the width comparison between mandibular central incisors and maxillary central incisors?
Mandibular central incisors are about half the width of maxillary central incisors.
What is the shape of the lingual aspect of the tooth from the incisal edge to the cervical line?
Concave
Which aspect of the tooth shows deep developmental depression with a well-defined developmental groove at the center?
Distal aspect
What is a notable feature of the mesial and distal surfaces in terms of the cervical line?
Convex cervical line
Which surface of the tooth is smooth and devoid of any grooves?
Lingual aspect
Why do newly erupted teeth show Mamelons which wear off upon mastication?
Due to masticatory forces in function
What is a distinguishing characteristic of the incisal aspect of this tooth?
'Bilateral symmetry' with right angle incisal edge
What is the eruption age range for mandibular lateral incisors?
7-8 years
How does the lingual surface of mandibular lateral incisors compare to mandibular central incisors?
It is flat and smooth
Where is the height of labial contour located in mandibular lateral incisors?
At the cervical third
What is a distinguishing feature of the incisal edge slope of mandibular lateral incisors?
It slopes labially
How does the mesiodistal width of the crown of mandibular lateral incisors compare to mandibular central incisors?
It is approximately 1mm more
How does the distal contact area of mandibular lateral incisors compare to the mesial contact area?
It is located more cervically
Learn about the characteristics and features of permanent mandibular central incisors in dentistry, including the number, dimensions, contact points, and incisal ridge. Understand how mamelons wear off post-eruption and the positioning of the incisal ridge.
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