DANB RHS Exam study questions with COMPLETE SOLUTION | 150 Questions with 100% Correct Answers

DANB RHS Exam study questions with COMPLETE SOLUTION | 150 Questions with 100% Correct Answers

DANB RHS Exam study questions

Why do we take x rays? - ✔✔To determine the dental health status of a patient beyond the oral


Periapical (PA) - ✔✔The tissues surrounding the apex of the root of a tooth.

Who benefits from dental xrays? - ✔✔Patient, Practice, Insurance.

What is the primary benefit of an xray? - ✔✔To detect disease.

Decay is the most common reason, Periodontal disease is the second most common reason.

What is the most lucrative reason for an xray in the State of Maine? - ✔✔Trauma xrays make the

most money in the state of Maine (at hospitals)

What is a Dental Fistula? - ✔✔Also called a gum boil or a parulis is an infection at the base of

the tooth which forms inflamed pus. Dental fistula if not treated starts with a tooth abscess and

normally ends on the gingiva or slightly in the oral vestibule.

What can be found in an xray? - ✔✔Developing teeth, missing teeth, supernumary teeth(extra),

impacted teeth, caries(decay), recurrent caries, periodontal disease, dilacerated roots(abnormal

curves), retained root tips, periapical lesions/infections.

Radiopaque - ✔✔The light or white areas of the film. The more dense the tissue or material, the

whiter it will appear.

Radiolucent - ✔✔Dark areas that x rays pass through easily.

Furcation - ✔✔Bone has been eaten away. Usually the result of periodontal disease.

What is the difference between radiographic interpretation and radiographic diagnosis? -

✔✔Interpretation is the ability to read and explain what is revealed by a radiograph. Diagnosis is

giving a disease or condition to the image that is seen.



Density - ✔✔The overall darkness of the x-ray picture.

What are the 4 parts of a tooth? - ✔✔Enamel, dentin, root/pulp, cementum.

Contrast - ✔✔Level of differentation between the black/white/grey areas of the film. Higher

contrast is very black and white, lower contrast has more shades of grey.

What are the two things that radiographic contrast depend on? - ✔✔Subject contrast and film


What is subject contrast? - ✔✔The result of differences in absorption of the xray by tissues.

What are the three factors in subject contrast? - ✔✔THE PATIENT:Each tissue has a different

contrast. Depending on size, the patient may have more levels of tissue for greater contrast.

KVP:this is the quality of the xray beam. the higher the beam, the more wavelengths are

produced and the greater the potential for contrast.

SCATTER RADIATION:The more that this sort of xray hits the film, the more it is exposed and

the kess contrast the picture will eventually take on.

What is film contrast? - ✔✔The contrast that comes from characteristics of the film and


What are the three factors in film contrast? - ✔✔Film type, exposure time(over and undereposed

films will result in poor contrast), processing(if done incorrectly, it may ruin the contrast built

into the film by the manufacturer.

What happens if a film is exposed to too much/too little light? - ✔✔Too much-darker

No comments found.
Login to post a comment
This item has not received any review yet.
Login to review this item
No Questions / Answers added yet.
Version latest
Category Questions and Answers
Included files pdf
Authors qwivy.com
Pages 16
Language English
Tags DANB RHS Exam study questions with COMPLETE SOLUTION | 150 Questions with 100% Correct Answers
Comments 0
Sales 0
Similar items
qwivy.com 10 pages English
qwivy.com 28 pages English
qwivy.com 48 pages English
Recently viewed items

We use cookies to understand how you use our website and to improve your experience. This includes personalizing content and advertising. To learn more, please click Here. By continuing to use our website, you accept our use of cookies, Privacy policy and terms & conditions.