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ANATOMY OF OROFACIAL STRUCTURES CHAPTER 10. EXAM 2025/2026 QUESTIONS AND ANSWERS

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Permanent molars - ANS Have second and tertiary anatomy that becomes more pronounced as they are positioned more posteriorly. Secondary anatomy - ANS Includes extra grooves and pits in addition to the main primary developmental anatomy. Tertiary anatomy - ANS Refers to extremely shallow and numerous grooves, pits, and lines found in third molars, giving them a wrinkled appearance. Maxillary incisor crown - ANS Wider mesiodistally than faciolingually, convex on labial and concave on lingual, with a triangular cross-section root broader on the facial side. Maxillary central incisor - ANS Has a greater crown to root ratio than the lateral incisor, a relatively sharp mesioincisal angle, a broad smooth lingual fossa, and a well-developed cingulum. Maxillary lateral incisor - ANS Has a lesser crown to root ratio than the central incisor, a more rounded mesioincisal angle, a small cingulum often with a lingual pit, and a longer and more slender root than

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ANATOMY OF OROFACIAL
Course
ANATOMY OF OROFACIAL

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Uploaded on
September 16, 2025
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Written in
2025/2026
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ANATOMY OF OROFACIAL
STRUCTURES CHAPTER 10. EXAM
2025/2026 QUESTIONS AND ANSWERS




Permanent molars - ANS Have second and tertiary anatomy that becomes more pronounced
as they are positioned more posteriorly.


Secondary anatomy - ANS Includes extra grooves and pits in addition to the main primary
developmental anatomy.


Tertiary anatomy - ANS Refers to extremely shallow and numerous grooves, pits, and lines
found in third molars, giving them a wrinkled appearance.


Maxillary incisor crown - ANS Wider mesiodistally than faciolingually, convex on labial and
concave on lingual, with a triangular cross-section root broader on the facial side.


Maxillary central incisor - ANS Has a greater crown to root ratio than the lateral incisor, a
relatively sharp mesioincisal angle, a broad smooth lingual fossa, and a well-developed
cingulum.


Maxillary lateral incisor - ANS Has a lesser crown to root ratio than the central incisor, a
more rounded mesioincisal angle, a small cingulum often with a lingual pit, and a longer and
more slender root than the central incisor.




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