Radiographs Flashcards
Name the 4 outcomes of photons from an X-ray.
Unaltered: pass through
Scatter: Change direction with no energy loss.
Scatter with absorption: Direction changes and energy is lost.
Absorption: Beam stroppes, deposits all energy into the thing its interacting with.
What is processing?
Conversion of the latent image to the permanent visible image by digital or chemical means.
What does attenuation mean?
The absorption and scatter process.
What is a radiographic image a measure of?
The measure of attenuation of X-ray beams being passed through matter.
Name the 3 intra-oral views.
Bitewing: Can only see the crowns of both upper and lower. No apex.
Periapical: Can see the apex of the root.
Occlusal: Looking up/down the teeth on the occlusal plane.
What are bitewings useful for spotting?
Contact caries
What are periapicals useful for spotting?
Bone loss
On what jaw are true occlusals carried out on?
Lower
List the extra-oral view radiographs.
Panoramic, 1/2 panoramic (DPR/DPT)
Lateral cephalometric radiograph.
Cone bean computer tomography.
What is a landmark used to ensure the radiographs are orientated the correct way?
Curve of spee. (smiley face)
List some anatomical features you might find on maxillary radiographs.
Maxillary sinus.
Nasal cavity.
List some anatomical features you might find on mandibular radiographs.
Mental foramen.
Inferior alveolar canal.
Lower border of the mandible.
Name the single rooted teeth.
Incisors.
Canines.
Second premolar.
Name the teeth with 2 roots.
1st premolar
Lower molars.
Name the teeth with 3 roots.
Upper molars.
