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How much do you know about dental radiography? What do you know about the different types of teeth, alignment, and sequence? The importance of teeth is evident when you think that you must chew your food every day. There are five different teeth types, including incisors, canines, premolars, molars, and wisdom teeth. Each kind of tooth serves another purpose. Show your pearly whites by smiling when you pass this quiz.

• 1.

The layers within a film packet, in order from the machine tube, are:

• A.

• B.

• C.

• D.

A. Paper, film, paper, lead foil
Explanation
The correct answer is paper, film, paper, lead foil. This order of layers is commonly used in film packets. The paper layers provide support and protection for the film, while the film layer is responsible for capturing the image. The lead foil layer acts as a shield to protect the film from exposure to light and radiation. This layering arrangement ensures that the film is adequately protected and can produce high-quality images.

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• 2.

The ideal time and temperature for developing are:

• A.

20c for 1 minute

• B.

17c for 3 minutes

• C.

25c for 3 minutes

• D.

15c for 5 minutes

A. 20c for 1 minute
Explanation
The ideal time and temperature for developing is 20 degrees Celsius for 1 minute. This means that the best conditions for developing whatever is being referred to in the question (e.g. film, photographs, etc.) are at a temperature of 20 degrees Celsius for a duration of 1 minute. This combination of time and temperature likely produces the desired results in terms of the development process, ensuring proper development without over or under processing.

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• 3.

Bitewing radiographs are taken to diagnose:

• A.

Occlusal caries

• B.

Interproximal caries

• C.

Periodontal bone loss

• D.

All of the above

D. All of the above
Explanation
Bitewing radiographs are a type of dental X-ray that are taken to diagnose various dental conditions. These include occlusal caries, which are cavities on the chewing surfaces of the teeth, interproximal caries, which are cavities between the teeth, and periodontal bone loss, which is the loss of bone supporting the teeth due to periodontal disease. Therefore, bitewing radiographs are used to diagnose all of these conditions.

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• 4.

A periapical view  with the apices off the film has been:

• A.

Foreshortened

• B.

Coned off

• C.

Elongated

• D.

Underexposed

C. Elongated
Explanation
The term "elongated" refers to the condition in which the apices of the teeth appear longer than they actually are on the radiographic film. This can be caused by factors such as improper angulation of the X-ray beam or incorrect positioning of the film or sensor. As a result, the image appears stretched or lengthened, giving a false representation of the tooth anatomy.

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• 5.

The sequence of events when developing a dental film is:

• A.

Developer fixer wash

• B.

Wash developer fixer wash

• C.

Developer wash fixer wash

• D.

Developer wash fixer

C. Developer wash fixer wash
Explanation
The correct sequence of events when developing a dental film is to first immerse the film in the developer solution, which helps to bring out the image. After that, the film should be washed to remove any excess developer. Next, the film should be placed in the fixer solution, which stabilizes the image and makes it permanent. Finally, the film should be washed again to remove any remaining fixer solution. This sequence ensures that the film is properly developed and the image is clear and long-lasting.

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• 6.

A radiograph that apprears black is likely to have been

• A.

Overdeveloped

• B.

Overexposed

• C.

Developed at too high a temperature

• D.

Any of the above

D. Any of the above
Explanation
The correct answer is any of the above. A radiograph that appears black can be a result of overdevelopment, overexposure, or development at too high a temperature. Overdevelopment refers to the film being left in the developer solution for too long, causing excessive darkening. Overexposure means that too much radiation was used during the exposure process, resulting in a darker image. Development at too high a temperature can also lead to darkening of the radiograph. Therefore, any of these factors can cause a radiograph to appear black.

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• 7.

OPT stands for

orphopantomograph
Explanation
OPT stands for orphopantomograph, which is a type of dental X-ray that provides a panoramic view of the entire mouth. It is commonly used in dentistry to diagnose dental issues such as impacted teeth, jaw disorders, and dental infections. The orphopantomograph is a valuable tool for dentists as it allows them to see a comprehensive view of the patient's oral structures, aiding in accurate diagnosis and treatment planning.

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• 8.

taking periapical views with the cone of the machine at too shallow an angle to the film packet packet
Explanation
Elongation occurs on radiographs when the periapical views are taken with the cone of the machine at too shallow an angle to the film packet. This means that the X-ray beam is not perpendicular to the film, causing the image to appear stretched or elongated. This can happen if the cone is tilted or not aligned properly with the film, resulting in distorted radiographic images.

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• 9.

Which of the following statements is correct in the procedure for making full/full dentures?

• A.

Impressions, Try, Bite, Re-try, Fit

• B.

Bite, Impressions, Try, Re-try, Fit

• C.

Impressions, Bite, Try, Re-try, Fit

• D.

Impressions, Try, Re-try, Fit

C. Impressions, Bite, Try, Re-try, Fit
Explanation
The correct answer is Impressions, Bite, Try, Re-try, Fit. This sequence follows the standard procedure for making full dentures. First, impressions of the patient's mouth are taken to create accurate molds. Then, a bite registration is taken to record the relationship between the upper and lower jaws. Next, the dentures are tried in the patient's mouth to assess fit, comfort, and aesthetics. If adjustments are needed, a re-try is performed to make necessary modifications. Finally, the dentures are fitted to the patient's mouth for optimal function and appearance.

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• 10.

A little tag of tissue in the center of the upper and the lower lip that attaches the lip to the gums

• A.

Hard Palate

• B.

Labial Frenum

• C.

Gingiva

• D.

Maxillary Tuberosities

B. Labial Frenum
Explanation
The labial frenum is a small piece of tissue that connects the upper and lower lips to the gums. It helps to stabilize and support the lips, allowing for proper movement and function. The other options, such as the hard palate, gingiva, and maxillary tuberosities, are not directly related to the attachment of the lips to the gums.

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• 11.

Non movable part of the roof of your mouth

• A.

Maxillary Tuberosities

• B.

Labial Frenum

• C.

Soft Palate

• D.

Hard Palate

D. Hard Palate
Explanation
The hard palate is the non-movable part of the roof of the mouth. It is a bony structure located in the front part of the mouth, separating the oral and nasal cavities. The hard palate is made up of bone and is covered by a layer of mucous membrane. It plays an important role in speech production and helps to separate the oral and nasal passages during swallowing and breathing.

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• 12.

Lies behind the hard palate and is closer to the back of your throat.  You can feel the dividing line between the hard and soft palates with your tongue

• A.

Hard Palate

• B.

Gingiva

• C.

Soft Palate

• D.

Labial Frenum

C. Soft Palate
Explanation
The soft palate is the correct answer because it is located behind the hard palate and closer to the back of the throat. The hard palate is the bony part of the roof of the mouth, while the soft palate is the fleshy, flexible part. The soft palate plays a role in closing off the nasal passage during swallowing and in producing certain sounds during speech.

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• 13.

Are the tough, hard humps behind your top back teeth on both sides of the dental arch

• A.

Gingiva

• B.

Hard Palate

• C.

Maxillary Tuberosities

• D.

Epiglottis

C. Maxillary Tuberosities
Explanation
Maxillary tuberosities are the tough, hard humps behind the top back teeth on both sides of the dental arch. These bony prominences are located in the maxilla, which is the upper jawbone. They serve as attachment sites for muscles and provide support for the cheeks and soft tissues in the mouth. The maxillary tuberosities can vary in size and shape among individuals, but they are generally present in the posterior region of the maxilla.

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• 14.
1 parotid glands
2 sublingual glands
3 submaxillary glands

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• Current Version
• Mar 22, 2023
Quiz Edited by
ProProfs Editorial Team
• Aug 31, 2012
Quiz Created by
Jo2222

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