(Reading) Flashcards
7 cards from real ABO practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 (Reading) flashcards as text
When reading a panoramic radiograph, ectopic eruption of the maxillary canine is most often associated with which adjacent tooth resorption risk?
Answer: Lateral incisor roots
Palatally displaced canines commonly cause resorption of the lateral incisor roots.
In ABO case documentation, the term 'interproximal contacts' in the CR-Eval scores what aspect of the finished dentition?
Answer: Absence of open spaces between adjacent teeth
The interproximal contacts criterion checks that no open spaces remain between adjacent teeth.
Which Angle classification describes a molar relationship where the mandibular first molar is mesial to the Class I position?
Answer: Class III
A mesially positioned mandibular molar relative to Class I indicates a Class III molar relationship.
Reading a cephalogram, an increased SN-mandibular plane angle typically indicates which facial growth pattern?
Answer: Hyperdivergent (vertical) growth
A steep (increased) mandibular plane angle reflects a hyperdivergent, vertical growth pattern.
In the ABO Discrepancy Index, which factor adds points for the anteroposterior discrepancy of the occlusion?
Answer: Cephalometric ANB and other AP measures
Cephalometric measures such as ANB contribute points to the AP component of the Discrepancy Index.
When interpreting a Bolton analysis, an anterior ratio significantly above 77.2% indicates what?
Answer: Excess mandibular anterior tooth material
An elevated anterior Bolton ratio reflects relatively excess mandibular (lower) anterior tooth material.
In radiographic reading, a well-defined radiolucency at the root apex of a non-vital tooth most likely represents which lesion?
Answer: Periapical granuloma or cyst
A defined apical radiolucency on a non-vital tooth typically indicates a periapical granuloma or cyst.