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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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.
1 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
