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UNMC Dental Radiology Exam Questions And 100% Correct Answers
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UNMC Dental Radiology Exam Questions And 100% Correct Answers...
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UNMC Dental Radiology Exam Questions And100% Correct Answers
What is radiation? - Answer A 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 is the difference between an x-rays and radiographs? -Answer A 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 develop 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)
Anterior - Answer Front teeth, 6 maxillary, 6 mandibular (central/lateral incisors and
canines)
Posterior - Answer Back teeth used for mastication (premolars, molars, and wisdoms
aka 3rd molars)
Occlusal - Answer Biting surface of posterior teeth
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