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Prometric_ Regional Written Dental Tease Notes.
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Prometric: Regional Written Dental TeaseNotes
What Radiopaque landmark separates the Mx sinus into 2 or more compartments? -
ANS-Septum
What Radiopaque landmark is sometimes seen overlapping the Mx Tuberosity? -
ANS-Coronoid Process
What Radiopaque landmark is a downward projection of the Medial Pterygoid Plate? -
ANS-Hamulus (Hamular Process)
Where is the inverted Y located? - ANS-Mx Canine/ Premolar area
What radiopaque landmark extends from the Md premolar area to the symphysis? -
ANS-Mental Ridge
What appears as a radiopaque line of varied width across to the Md molar region? -
ANS-Oblique Ridge
What Radiolucent landmark is seen apically to the Md 1st and 2nd premolar? -
ANS-Mental Foramen
What small circular Radiolucent area is surrounded by the Genial Tubercles? -
ANS-Lingual Foramen
What is the difference between Dens Invaginatus and Dens Evaginatus? - ANS-Dens
Invaginatus is a tooth within a tooth. The tooth folds inward
Dens Evaginatus is where an extra bump or cusp appears to form
What teeth are more likely to have Dens Evaginatus? - ANS-Premolars
After a tooth is extracted, how long would the process take to where it can no longer be
distinguished radiographically from the surrounding tissues? - ANS-18 months
What is a supernumerary tooth present in the midline between the 2 central incisors? -
ANS-Mesiodens
Oral problems: malocclusion, food impaction, poor esthetics, cyst formation
, What condition is known by cementum overlying the roots of at least 2 teeth joined
together. Can sometimes be attributed to trauma or crowding of teeth? -
ANS-Concrescence
What condition is found in molar teeth whereby the body of the tooth and pulp chamber
is enlarged vertically at the expense of the roots? - ANS-Taurodontism
as a result of the floor of the pulp and furcation of the tooth is moved more apically
down the root.
What is the underlying mechanism of Taurodontism? - ANS-Failure or late invagination
of Hertwig's Epithelial Root Sheath, which is responsible for root formation and shaping
causing an apical shift of the root furcation.
Which patient positioning results in Ghost images? - ANS-Patient Slumping
Superimposition is also known as what? - ANS-Double exposure
What can cause film to be too light? - ANS-1. insufficient exposure
2. insufficient developing time
3. use of overused developing solution
4. use of developing solution that's too cold
What is a blurred edge to an image, a halo effect in an Xray film caused usually by an
overlarge focal spot exacerbated by a long object-to-film distance? - ANS-Penumbra
What differs delayed eruption from impacted? - ANS-If adjacent teeth are blocking the
teeth, it is impacted.
What is the pulp composed of? - ANS-Fibroblasts, blood vessels, lymphatic channels,
nerves and connective tissue
What part of the tooth is the first to form? - ANS-Enamel
1st part of the tooth to form in the bone is the outer shell of the enamel
Mesenchyme gives rise to the dentin, pulp, cementum and enamel. T/F - ANS-False
Ectoderm gives rise to enamel
_________ bone forms the outer layer of all bones and most of the structure of the long
bones. - ANS-Compact
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