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Dental Imagery II 1

Create an engaging and informative illustration showcasing a dental radiography setting, with images of dental X-ray equipment, a panoramic X-ray of a human jaw, and a dental professional examining X-rays.

Dental Radiography Knowledge Quiz

Test your knowledge of dental imagery with our comprehensive quiz designed for dental professionals and students alike. This quiz covers essential concepts related to digital and traditional radiography, including techniques, structures, and safety measures.

Join now to enhance your understanding of:

Types of radiographic films
Digital imaging benefits
Radiation safety practices
Exam techniques and processing methods

72 Questions18 MinutesCreated by ScanningMolar214

What type of film allows the entire dentition to be viewed on a single film?

Occlusal

Cephalometric

Panoramic

All of are corrected

What type of device does digital radiography use to record images taken of the patient's teeth?

Standard x-ray film, with scanner

Electronic sensor

MRI sensor

All of are corrected

What step helps prevent a large radiolucent area near the palate as seen on panoramic x-rays?

Placing the patient's midsagittal plane perpendicular to the floor

Having the patient stand as straight as possible

Having the patient place their tongue in the roof of their mouth

Having the patient smile with their lips apart

Why does digital radiography require less radiation than traditional x-rays?

The x-ray beams are more powerful

It uses lower wave-length radiation

Sensors are more sensitive.

All of are corrected

Use of the FDI index of tooth charting enables dental professionals from many countries to accurately read dental charts. Which of the following is the FDI notation for the upper left deciduous first molar?

Some patient attends with a suspected carious lesion in the lower right first molar tooth. Which radiographic view would normally be taken to diagnose this lesion?

Horizontal bite-wing

Occlusal

Periapical

Vertical bite-wing

When an x-ray film has been exposed to ionizing radiation, it requires processing to develop the image. Which of the following is not a feature of an automatic processor?

Developing tank

Fixing tank

Sensor

Water tan

Digital x-ray sensors:

Cannot be sterilized

Are sealed and waterproofed

Must be covered with a barrier

All of are corrected

What absorbs more of the long wave length radiation not useful in producing a good diagnostic image?

Aluminum filter

Film packet

Lead apron

Patient

Panoramic radiographs are?

All of are corrected

Used in diagnosing temporomandibular joint disorders

Used with annual posterior bitewings

Useful to see impacted, supernumerary teeth and unerupted teeth

An elongated image will appear:

Deformed

Distorted

Longer

Shorten

. Digital X-ray systems:

A traditional X-ray tube head is used

All of are corrected

Reduces radiation exposure by 90% to the patient

Use an intraoral sensor

Following which procedures as the X-ray operator will reduce your exposure to radiation:

All of are corrected

Never holding the film or X-ray tube head while exposing an X-ray

Standing 6 feet or more away from the X-ray tube head

Standing behind a barrier or outside of the treatment room

What is the term used to describe the appearance of dental caries in a processed radiograph?

Contrast

Overlapped

Radiolucent

Radiopaque

Pick all the benefits of digital imaging:

All of are corrected

Diagnostic capability is better and higher resolution quality

Less storage space is needed

Radiation exposure is less for the patient

Hat error occurred when a foreshortened image appears on a radiograph?

Excessive horizontal angulation

Excessive vertical angulation

Insufficient angulation

All of are none corrected

. What is an example of a radiopaque anatomical structure on a processed radiograph?

Decay

Enamel

Pulp

Sinus

The two major types of dental examination are:

Extraoral and bite wings

Extraoral only

Intraoral and extraoral

Intraoral only

Debris/Dark spots on processed radiograph is most likely caused by?

Film was handled incorrectly

Patient had not brushed their teeth

Processing rollers were not cleaned properly

Wrong sized film was used

What is one way you can reduce exposure of radiation to the patient?

Decreasing horizontal angulation

Using a rinn

Using F speed film

Vertical angulation

The purpose of the collar on the lead apron is to reduce the dose of radiation to the:

Blood vessels

Reproductive system

Saliva glands

Thyroid

Pick an advantage of being able to in hance a digital image?

Almost instant viewing of the radiograph

Films are not easier to see decay

Negative images are available

Radiation exposure time is reduced

An elongated image on a dental radiographic is most likely the result of:

Excessive horizontal angulation

Excessive vertical angulation

Insufficient horizontal angulation

Insufficient vertical angulation

The advantages of digital radiographs are?

All of are corrected

Electronic messaging (email)

Immediate viewing of the film

Less radiation exposure to the patient

. What region do you begin exposing if the patient has a bad gag reflex?

Anterior region

Mandibular region

Maxillary region

Posterior region

What is an example of X-ray equipment that can be sterilized?

Control panel

Film placement holder

Lead apron

Tube head

What tissue is the most radio-resistant?

Blood vessels and blood forming organs

Muscle and nerve

Salivary glands

The reproductive system

He film captures a major part of the maxillary or mandibular on a single radiograph?

Bitewing

Occlusal

Panoramic

Periapical

. Choose the infection control guidelines for the darkroom:

All of are corrected

Place barriers on countertops

Use over gloves and change your gloves

Wash and dry hands after films are placed in the processor

Which of the following best describes the appearance of bone on a radiograph?

Cortical bone appears radiopaque, cancellous bone appears radiolucent

Cortical bone appears radiolucent, cancellous bone appears radiopaque

All bones appear radiolucent

All bones appear radiopaque

The inverted Y landmark is composed of which two structures?

Junction of the right and left nasal cavities

Inferior border of the nasal cavity and anterior border of maxillary sinus

Floor of orbit and floor of maxillary sinus

Floor of orbit and anterior border of maxillary sinus

Which of these structures appear radiopaque?

Maxillary sinus

Nasal fossa

Maxillary tuberosity

Mental foramen

. Which is the proper method for mounting radiographs?

As if you were facing the patient

If you were looking out from patients tongue

Mounted with dot toward the distal

Should be mounted with dot toward the mesial

Who is allowed to make an initial interpretation of a dental radiograph?

The patient

The assistant

Trained assistant who passes DANB Radiation exam

All of are not corrected

To whom should an initial interpretation be given?

Dentist

Patient

anyone who asks

All of are not corrected

Name the following intraoral radiograph:

Periapical radiograph

Bitewing radiograph

Occlusal radiograph

All of are corrected

Which of these structures appear radiolucency?

Periodontal disease

Diastema

Cervical burnout

Resorbing alveolar crest

Select the most appropriate term for the anomaly associated with the 1st (most mesial) molar:

Diastema

Concrescence

Dilaceration

Dens invaginatus

Observe the bifurcation area of these three molars. All have the same round, radiopaque,anomalous appearance. What term best describes this?

Pulp stone

Dentine

Buccal enamel defect

Enamel pearl

. We can see at least two errors in this image. Which do you think they are?

Rectangular BID cone cut and film bending

Rectangular BID cone cut and static electricity

Lead apron and static electricity

Lead apron and film bending

At least two errors are in this edentulous maxillary posterior periapical view. Select the best choice:

cImproper horizontal and vertical angulation of the beam

Excessive vertical angulation of the BID and round BID cone cut

Excessive vertical angulation of the BID and bent film in the processor

Round BID cone cut and excessive distal angulation of the BID

One major error is in this radiograph. What is the cause?

Foreshortening

Elongation

Improper horizontal angulation of the BID

Excessive negative vertical angulation of the BID

The correct term(s) that best describe the radiopaque objects is:

Implants

Implants and appliances

Implants, appliances, and crowns

Screw-teeth

This patient is a 32-year-old white woman. This was the only lesion she had, and the adjacent teeth were vital. The condition we see here is:

Focal cemento-osseous dysplasia

Periapical cemento-osseous dysplasia

Florid cemento-osseous dysplasia

Ossifying fibroma

What is your assessment of the periapical radiolucent area at the apex of the lateral incisor?

Recurrent abscess formation

Periapical cementum dysplasia

Surgical traumatic cyst

Apical scar

The arrow points to a normal anatomic structure. Which one is it?

Inferior mandibular canal

Posterior alveolar canal

Lingual canal

Mylohyoid line or ridge

The 2nd premolar is vital and asymptomatic, and the patient is a black female. Identify the radiolucency to which the arrow is pointing:

Periapical cementum dysplasia

Periapical cyst or granuloma

Mental foramen

Lateral periapical cyst

Here we see a very good radiograph of the 3rd molar region. List the anomalies seen in this radiograph:

Impacted 2nd molar and microdontic 3rd molar

Impacted 3rd molar and supernumerary 4th molar

Impacted 2nd molar, microdontic impacted 3rd molar, and dilacerated mesial root of the 2nd molar

Mpacted 3rd molar, impacted supernumerary 4th molar, and dilacerated mesial root of the 2nd molar

Notice that there are at least two, possibly three, missing permanent teeth with the retention of at least one or two primary teeth. Among the following list, what is the most likely diagnosis?

Cleidocranial dysplasia

Hypohydrotic ectodermal dysplasia

Gardner’s syndrome

Cherubism

This patient is a 72-year-old man. Notice that the pulp and root canal spaces are significantly diminished. What is the cause of this?

Attrition and age

Amelogenesis imperfecta

Dentinogenesis imperfecta

Dentin dysplasia type 1

Observe the posterior maxillary tooth. What term(s) best describe(s) this tooth?

Microdontia

Disto/para molar

Macrodontia

Anodontia

This young adult is missing her 1st premolars; there is also a technique error in this film. Which choice best represents this case?

Bent film and foreshortening

Static electricity and shovel-shaped incisor syndrome

Nasolabial fold and taurodontism

Bent film and orthodontic root resorption

. Two technique errors are visible in this image. Identify the cause of the two errors?

Excessive positive vertical angulation and bent film

Insufficient vertical film placement and rectangular BID cone cut

Insufficient positive vertical angulation and processor damage to bent film

Elongation and partial image obscurity

Though the contacts occlusion is mostly open, what went wrong with this bitewing?

Excessive positive vertical angulation

Movement

Excessive negative vertical angulation

Nothing went wrong; it is okay

Observe this radiograph. One of the other films in the series was blank. What went wrong here?

Round BID cone cut

Fog

Double exposure

Bending film

N this periapical radiograph, there are two white arrow heads. To what structures do they point?

Nferior mandibular canal and inferior cortex

Submandibular fossa and inferior cortex

Inferior cortex and external oblique ridge

Mylohyoid ridge and inferior cortex

Regarding this image, select the one most accurate choice listing what can be seen in this image:

Orthodontic root resorption, radiolucent restorations, palatal torus

Shovel-shaped incisor syndrome, class 3 caries, film bent and damaged in processor

External root resorption, class 3 caries, palatal torus

Orthodontic root resorption, radiolucent restorations, film bent and damaged in processor

We are considering the radiolucent lesion between the lower premolars. Based on this radiograph, what would be your most likely clinical diagnosis before biopsy:

Lateral periodontal cyst

Lateral radicular cyst

Odontogenic keratocyte cyst

Botryoid odontogenic cyst

Observe the radiograph of this fixed 4-unit prosthesis (bridge). What materials is the prosthesis made of?

All gold

Gold with porcelain facings

Gold with acrylic facings

This patient has a history of a fractured mandible. What do you make of what we see at the apex of the 2nd molar?

Ligature wire

Ligature wire and fibrous scar

Scratched film and abscessed tooth

Some type of double exposure

Ame two materials associated with taking the radiograph:

Bite-block and cotton roll

Bent film and grainy image caused by depleted developer

Bite-block and acrylic stent for implant imaging

This question deals with only the structure indicated by the arrow heads. Select the best choice?

Hard palate

Floor of the nose

Roof of the sinus

Soft palate

Match the descriptive term that indicates the problem; after that, list the cause:?

Shortened roots; orthodontics

Shortened roots; shovel-shaped incisor syndrome

Foreshortening of the roots; excessive negative vertical angulation of the BID

This is a problem without a cause because there is no problem or error

Okay, this is the one you have been waiting for. What happened?

Chemical stains

Class 4 partial denture with porcelain teeth

that have become dislodged

Double exposure

Observe these teeth carefully. What condition is present?

Amelogenesis imperfecta

Dentinogenesis imperfecta

Dentin dysplasia type 2

Age-related pulp obliteration

An anomaly is present in this patient. It is:?

Snow-capped tooth

Periapical cementum dysplasia

Rare double-crowned tooth

Mesiodens

Note the extruded maxillary 3rd molar. What term(s) best describe?

Distomolar

Microdontia

Impacted

All of the above

Note the dilacerated premolar root. The condition that affects this sinus is: ?

Acute sinusitis

Chronic sinusitis

Sinus elongation

Pneumatizing

In this, you can see on radiography. The problem here is: ?

Gemination

Fusion

Dilaceration

Twinning

What you can see the problem here is:?

Gemination

Fusion

Dilaceration

Odontoma

You see with the central and a lateral incisor. What is the problem here is?

Gemination

Fusion

Dilaceration

Odontoma

Study models are taken for many purposes during assessment and treatment in the dental workplace. Which of the following is not one of their many uses?

Analysis of attrition

Occlusal analysis

Orthodontic assessment

Periodontal assessment

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