Radiography Flashcards
At what intervals should bitewings be taken for high risk patients?
6 months
At what interval should bitewings be taken for medium risk patients?
12 months
At what intervals should bitewings be taken for low risk patients?
2 years
At what intervals should bitewings be taken for low risk patients with primary dentition?
12 months
What is the recommended radiographs for heavily restored dentition/history of multi quadrant endodontic treatment?
consider OPG/selected PAs
What is the recommended radiographs for grossly neglected dentition with multiple grossly carious teeth and/or roots in many quadrants?
OPG
Which radiographic view is indicated for gingivitis?
no radiographs indicated
Which radiographic view is indicated for < 5mm pocketing?
horizontal bitewings
Which radiographic view is indicated for > 5mm and < 8mm pocketing?
vertical bitewings
Which radiographic view is indicated for > 8mm localised pocketing?
selected PAs
Which radiographic view is indicated for > 8mm generalised pocketing?
full mouth PAs, could consider OPG
What is the intraoral dose per exposure for PAs?
1-8 uSv
What is the dose of a OPG?
5-30 uSv
What are 5 indications for bitewings?
- if reversible pulpitis is suspected
- caries
- poor restorations
- bone levels (<5mm loss)
- calculus
What are 5 indications for PAs?
- if irreversible pulpitis is suspected
- bone loss >5mm
- fractures/perforations
- pathology at apex
- caries - crown/root
Which periapical technique is the following?
- distortion minimised
- reproducible
- little (predictable) magnification
- sometimes harder to tolerate
- less technique sensitive
paralleling
Which periapical technique is the following?
- more distortion
- not reproducible
- uneven magnification
- no extra equipment required
- easier to tolerate
- technique more prone to errors
bisecting angle
Vertical bitewings can be useful for which type of dentition?
- mixed dentition
- root caries
Which radiographic view is useful for special care/children?
lateral oblique
What is the description for an acceptable radiographic, diagnostically acceptable?
no or minimal errors of sufficient image quality to answer the clinical question
What is the description for a diagnostically not acceptable radiograph?
errors which render the image diagnostically unacceptable
What is the aim of acceptable radiographs using digital imaging?
not less than 95%
What is the aim of not acceptable radiographs using digital imaging?
not greater than 5%
What is the aim of acceptable radiographs using film-based systems?
not less than 90%
What is the aim of not acceptable radiographs using film-based systems?
not greater than 10%
