Radiography + Errors Dentalelle Tutoring

How should the lead apron be stored? Hung up Folded In the x-ray room Away from patients

How should the lead apron be stored? Hung up Folded In the x-ray room Away from patients **The lead apron should be hung up so that the LEAD inside the apron doesn’t crack

Intensifying screens are used: In intra-oral radiography Extra-oral radiography For the lateral views For digital x-rays

Intensifying screens are used: In intra-oral radiography Extra-oral radiography For the lateral views For digital x-rays

Size 4 Size 4 films is considered an occlusal film and may be used for extra oral radiographs. BUT this is considered a non-screen film (does not use an intens. Screen). Not often used because it needs more exposure time and MORE RADIATION.

What is true regarding the midsagittal plane? Should be perpendicular to the floor The imaginary line connecting to the external auditory meatus The imaginary line connecting to the internal auditory meatus Ala-tragus is used for positioning

What is true regarding the midsagittal plane? Should be perpendicular to the floor The imaginary line connecting to the external auditory meatus. PARALLEL = frankfort plane The imaginary line connecting to the internal auditory meatus Ala-tragus is used for positioning

When taking a PAN, why is the thyroid collar not used? It is always used It’s too heavy It blocked the primary beam It blocks scatter radiation

When taking a PAN, why is the thyroid collar not used? It is always used It’s too heavy It blocks the primary beam It blocks scatter radiation

Films need to be exposed properly Films need to be exposed properly. Overexposure and underdevelopment result in: Unnecessary radiation Film speed to fast Film speed not being fast enough Not enough contrast

Films need to be exposed properly Films need to be exposed properly. Overexposure and underdevelopment result in: Unnecessary radiation Film speed to fast Film speed not being fast enough Not enough contrast

What is collimator cut off and how to fix? Static Film too dark Developer spots Cone cut

What is collimator cut off and how to fix? Static Film too dark Developer spots Cone cut - the central ray needs to be in the centre of the film

Film reversal could also be referred to as: Herringbone effect Ghost Image Artifacts Crescent marks

Film reversal could also be referred to as: Herringbone effect Ghost Image - wearing earrings Artifacts - wearing earrings Crescent marks - bent film

What happens with overlapping? The central ray isn't parallel to the film and teeth The central ray isn't perpendicular to the film and the teeth The vertical angulation isn't perpendicular to the film and the teeth The teeth appear elongated

What happens with overlapping? The central ray isn't parallel to the film and teeth The central ray isn't perpendicular to the film and the teeth The vertical angulation isn't perpendicular to the film and the teeth The teeth appear elongated

When taking a periapical and you notice the apex is cut off, what happened? Cone cutting The patient didn't bite down hard enough Incorrect film placement The film is too large

When taking a periapical and you noticed the apex is cut off, what happened? Cone cutting The patient didn't bite down hard enough Incorrect film placement The film is too large

The PID should be positioned: Close to the face Not too close to the face Far from the face Exactly 5 inches from the face

The PID should be positioned: Close to the face Not too close to the face Far from the face Exactly 5 inches from the face

What happens if the film is blurred? Patient movement Patient or tube head movement Tube head movement Superimposed

What happens if the film is blurred? Patient movement Patient or tube head movement Tube head movement Superimposed

Cervical burnout could resemble ___? Calculus Cyst Spurs Caries

Cervical burnout could resemble ___? Calculus Cyst Spurs Caries

Periapical Condensing Osteitis is recognized by: Dense bone around the apex Dense bone throughout Dense bone around the crown Dense bone distal to the 7

Periapical Condensing Osteitis is recognized by: Dense bone around the apex - often premolars and molars, usually results in the tooth being nonfatal Dense bone throughout Dense bone around the crown Dense bone distal to the 7 **Osteo refers to bone, and ITIS refers to inflammation

Where is a residual lesion found? Found near the 8’s Anteriors Molars Edentulous areas

Where is a residual lesion found? Found near the 8’s Anteriors Molars Edentulous areas

The most common supernumerary teeth are: Mandibular premolars, maxillary incisors, and fourth molars Maxillary premolars, maxillary incisors and fourth molars Fourth molars and laterals Premolars and fourth molars *Fourth molars are referred to as your wisdom teeth

The most common supernumerary teeth are: Mandibular premolars, maxillary incisors, and fourth molars Maxillary premolars, maxillary incisors and fourth molars Fourth molars and laterals Premolars and fourth molars

Hypodontia is Too little teeth Too many teeth Failure of teeth to develop Laterals missing

Hypodontia is Too little teeth Too many teeth Failure of teeth to develop Laterals missing

Hypercementosis is: Build up of cementum on the root of the tooth Build up of cementum on any area of the tooth Lesion in the cementum Cementogensis Cyst

Hypercementosis is: Build up of cementum on the root of the tooth Build up of cementum on any area of the tooth Lesion in the cementum Cementogensis Cyst

Fusion is: Single crown with two roots Two crowns and one root Two crowns and two roots Two teeth joining by cementum

Fusion is: Single crown with two roots Two crowns and one root - gemination Two crowns and two roots Two teeth joining by cementum - concrescence

Pulpitis: Can be seen in a radiograph in the later stages Can be seen in a radiograph because normal pulp looks different and densities are different Cannot be seen radiographically because normal, inflamed and dead pulp all look the same Can only be seen in a periapical

Pulpitis: Can be seen in a radiograph in the later stages Can be seen in a radiograph because normal pulp looks different and densities are different Cannot be seen radiographically because normal, inflamed and dead pulp all look the same = remember, caries can be seen and deep caries can be a cause Can only be seen in a periapical