Radiography Flashcards
What are the two radiographic units we should have for pocket pets?
Standard radiology unit and dental unit
(T/F) The higher the resolution on the radiology unit the better.
True
We need a (faster/slower) exposure due to more movement and faster respirations
Faster
What should we do with dyspneic patients before we can take radiographs?
Sedate them with Midazolam or Torb
What two ways can we restrain pocket pets? (very general)
Manual or chemical
What do you need to have for dental radiographs to have a proper view and technique to have proper interpretation?
It is all about symmetry
What four views can we take in rabbits?
Latero-lateral, dorsoventral/ventrodorsal, 30-40 degree left and right lateral obliques, rostrocaudal (less necessary)
Which radiographic view is the most important and informative?
Latero-lateral
How should we position a dorsoventral view in a dental rad?
Base of head needs to be pushed down so entire mandible is in contact with the plate
What can be described in a 30-40 left and right lateral obliques?
Offset mandibular reserve crowns and (distorted) opposite maxillary crowns
- Left mandibular apices and right maxillary apices not overlap
How do you position the head for a rostrocaudal view?
Head pointed straight up into the beam
(T/F) You only need to use one lateral view shot to get upper and lower incisors in rabbits.
False - often is need separate lateral views of upper and lower incisors to get the full length on film
How can you differentiate the upper and lower incisors in rabbits?
Upper more curved and can see the peg tooth
What is the gold standard diagnostic to figure out dental disease?
CT (pediatric machine)
What dental view is more informative for guinea pigs and chinchillas?
Rostrocaudal view - can evaluate TM joints, occlusal plane and mandible changes
What views do you want to use in guinea pigs to see the occlusal surfaces on one side and flat occlusal plane on the other side?
Isolated DV and 40 oblique
What are you looking for in dental radiographs to see if there is disease?
Looking for asymmetry
What are some signs of asymmetry in dental radiographs?
Elodont teeth parallel and of similar length with no interdigital space
Changes in parallel alignment or variations in cheek teeth length
Irregular occlusal plane
Improper alignement of upper and lower jaws
Malalignment of upper and lower incisors
Change in apical bone with lysis or expansion of apical pocket
What are the imaginary lines in rabbits, guinea pigs, chinchilla and degu in attempt to create standardize measurement?
Bohmer Crossley Reference lines
Which views can be used for rats and mouse for dental rads?
Laterolateral and dorsoventral often suficient
What view can be used in rats and mouse to help with TM evaluations?
Rostrocaudal
Why is it hard to visualize roots from the cheek teeth in rat and mouse?
Anelodont cheek teeth have multiple small roots
(T/F) Rats have lower incisors that wrap completely under cheek teeth to caudal mandible.
True
What is a different view that we can do to carnivores and omnivores (ferrets, sugar gliders and primates) that is different?
Can do intraoral films similar to cats since they can open their mouth wide
What two structures would you see in herbivores in whole body rads?
Large cecums or colons that obscure other organ details
What are the standard views for small mammal whole body rads?
Laterolateral and dorsoventral views
Many herbivores have significant (gas/ food contents) in areas of the GI tract and there is wide variation to normal
Gas
What structure would you be able to see with a rabbit in a full body rad with GI distension?
Can see the duodenum
If in a rabbit whole body rad the cranial part of the heart in a thorax view is lost, what can this tell you?
Rabbit has a thymoma
In a whole body guinea pig rads what is different than a rabbit?
They look more bloated (hard to see other structures which is normal and air should be in the stomach)
