Dental Anatomy & Morphology Understanding Flashcards
7 cards from real CDT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Dental Anatomy & Morphology Understanding flashcards as text
Which cusp of the maxillary first molar is the smallest and located on the distolingual aspect?
Answer: Cusp of 5th
The fifth cusp of the maxillary first molar, sometimes called the cusp of 5 or tubercle of Carabelli's counterpart, is located on the distolingual surface and is the smallest cusp.
The triangular ridge of a cusp runs in which direction?
Answer: From the cusp tip toward the central groove
A triangular ridge descends from the tip of a cusp toward the central developmental groove of the tooth.
Which permanent tooth has a prominent lingual ridge dividing its lingual surface into two fossae?
Answer: Maxillary canine
The maxillary canine has a prominent lingual ridge that divides the lingual surface into mesiolingual and distolingual fossae.
The contact area of anterior teeth is located closest to which region?
Answer: Incisal third of the crown
Contact areas of anterior teeth are located in the incisal third of the crown, near the incisal edge.
Which mandibular premolar most closely resembles a canine in its occlusal morphology?
Answer: Mandibular first premolar
The mandibular first premolar has a dominant buccal cusp and a small, nonfunctional lingual cusp, giving it a canine-like appearance from the occlusal view.
What is the term for the curved line representing the greatest mesiodistal width of a tooth as viewed from the facial aspect?
Answer: Crest of curvature
The crest of curvature (height of contour) is the most prominent point of the crown in each direction, representing its widest extent.
The Cusp of Carabelli is most consistently found on which tooth?
Answer: Maxillary first molar
The Cusp of Carabelli is an accessory cusp found on the mesiolingual surface of the maxillary first molar, though it varies in expression.