Dental Charting, Tooth Morphology, and Occlusion Flashcards
6 cards from real RDA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Dental Charting, Tooth Morphology, and Occlusion flashcards as text
In the Palmer Notation System, how is the mandibular left first molar identified?
Answer: 6 with a bracket symbol opening to the lower left
In the Palmer Notation System, the mandibular left first molar is written as 6 with a right-angle bracket symbol indicating lower left quadrant.
Which cusp is considered the 'stamp cusp' of the maxillary first premolar?
Answer: Lingual cusp
The lingual cusp of the maxillary first premolar is the stamp cusp — it occludes in the central fossa of the mandibular first premolar and is the primary functional cusp in centric occlusion.
What condition describes teeth that overlap horizontally, where the upper anterior teeth protrude beyond the lower anteriors?
Answer: Overjet
Overjet is the horizontal distance between the labial surface of the maxillary incisors and the labial surface of the mandibular incisors, measured parallel to the occlusal plane.
What does the term 'furcation' refer to in dental charting?
Answer: The area where the roots of a multi-rooted tooth divide
Furcation refers to the area where the roots of a multi-rooted tooth (molars, maxillary premolars) divide from a single root trunk.
Which of the following describes an open contact in dental charting?
Answer: A missing interdental contact between adjacent teeth
An open contact means there is no tight interproximal contact between adjacent teeth, allowing food impaction and increasing the risk of interproximal caries and periodontal problems.
What is the correct term for the biting surface of posterior teeth?
Answer: Occlusal
The occlusal surface is the chewing (biting) surface of posterior teeth (premolars and molars). For anterior teeth, the equivalent surface is called the incisal edge.