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UNMC Dental Radiology QUESTIONS AND ANSWERS VERIFIED BY EXPERT 100% CORRECT | UPDATED
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UNMC Dental Radiology QUESTIONS AND ANSWERS VERIFIED BY EXPERT 100% CORRECT | UPDATED
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UNMC Dental Radiology QUESTIONS AND ANSWERSVERIFIED BY EXPERT 100% CORRECT | UPDATED
2024-2025
What is radiation? - ANSWER Form of energy carried by waves or streams of
particles.
What is radiology? - ANSWER The study/science of radiation as used in
medicine.
The branch of medical science that deals w/ x-rays/radioactive substances and
other energy forms in diagnosis/treatment.
What are the differences between x-rays and radiographs? - ANSWER An x-ray
is a beam of electromagnetic energy that has power to penetrate
paper/aluminum. Stopped by lead. Refers to beam of energy.
A radiograph is a 2D representation of a 3D object.
Why is radiology used in dentistry? - ANSWER Detect
lesions/diseases/conditions of teeth/structures that can't be identified clinically.
Confirm/classify suspected disease.
Localize lesions/foreign objects.
Used in treatment as reference.
Evaluate growth/development.
Illustrate changes secondary to caries/perio/trauma. Help make treatment plan.
What are the layers of the teeth? - ANSWER Enamel—outer hard white portion
of tooth
, Dentin—inner part, softer than enamel
Pulp chamber—inside layer, central portion/chamber containing nerve/blood
vessel supply
Gingiva—gums
Periodontal Ligament—sensory feedback while chewing. Widens/darkens as
infected/traumatized
Cementum—around root
Bone—around tooth
Apex—root tip opening where nerves/blood vessels enter. Capture in PA to know
if infected.
How many teeth are in the adult mouth, including wisdom teeth? - ANSWER
32 (1, 16, 27, 32 may be removed/impacted)
What do the terms maxilla and mandible mean? - ANSWER Maxilla—upper jaw
Mandible—lower jaw
Mesial - ANSWER Towards the midline
Distal - ANSWER Away from midline, towards the throat
Lingual - ANSWER Towards the tongue
Facial - ANSWER Outer side, facing cheek (Buccal for posterior, labial for lips)
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