Maxillary Incisors Flashcards
Which incisal corner of the maxillary incisors has the most rounded curvature?
a. Which Maxillary Incisor corner has the most curvature?
Distal
a. Maxillary Lateral Incisor distal corner
Which incisor of the maxillary incisors is the most angular?
a. What surface is the most angular?
Central Incisor
a. Mesial – Incisal Point Angle
Compare the crown:root ratios of the maxillary central incisor vs. lateral incisor.
Maxillary central crown is larger. The roots tend to be the same size.
What anatomical features border the lingual fossa of a maxillary lateral incisor?
Mesial Marginal Ridge, Distal Marginal Ridge, Incisal Ridge, Cingulum
Which incisor is most likely to form a lingual pit?
a. What are the anatomical features that possibly form that pit?
Lateral Incisor
a. Mesial and Distal Marginal Ridges
The distal HOC is most cervically located in which incisor?
Lateral Incisor
The incisal edge of the maxillary central develops from which developmental lobes?
a. Which are the sizes of lobes compared to one another?
MF, Mid Facial, DF
a. MF = DF > Mid Facial
From a proximal view, describe the location of a maxillary central’s incisal edge relative to the mid-root bisector or long axis?
Perpendicular to long axis of tooth
Compare the maxillary central and lateral incisor, which proximal surface is nearly straight from crown to root?
a. Which surface is most curved?
Maxillary central incisor mesial surface = most straight
a. Maxillary Lateral incisor distal surface = most curved
What anatomical feature gives rise to the lingual HOC of all anterior teeth?
Cingulum
- From an incisal view of a maxillary central incisor, describe the FL position of the incisal edge.
Centered
From an incisal view of an anterior tooth, which HOC are normally visible?
F, L, M, D
The apical third of a maxillary lateral root is typically curved in which direction?
Distal
The cervical root cross-section of a maxillary central is described as being what shape geometrically?
Triangular (tapering towards the lingual)
