Intra Oral films Flashcards
What are image techniques?
detailed cheat sheets for each exposure
How long are adult exposures
0.094 seconds
how long are paediatric exposures
0.062 seconds
what are the purposes of a full mouth survey
decrease error, decrease patient exposures, identify when retakes are necessary
What are bitewings used for
for inter proximal surfaces of posterior teeth
What needs to be visible in mand and max of bitewings
alveolar crests
What colour is used for the RINN instrument for bitewings
RED
What needs to be shown in a premolar bitewing
2-3 mm of the distal of the canine
what needs to be shown in the molar bitewing
the distal of the last molar tooth
what is the purpose of bitewings
to evaluate dentition for caries and periodontal bone loss
In premolar bitewings, what does the beam need to be perpendicular to
the receptor and inter proximal surfaces
in a premolar bitewing, what tip will help to capture whats necessary
line up to the canine and the MB of the first molar
in a molar bitewing, what tip will help to capture whats necessary
line up to the MB of the 1st molar and the MB of the 2M or the 3M
What does a good periapical have
visual on the crown and 2-3 mm surrounding the apices of the imaged dentition and none to little overlapping go dental structures, least amount of distortion
What is the purpose of periapicals
evaluation of dentoalveolar structures for pathology
What colour RINN instrument is used for anterior periapicals
Blue
How many periapicals does the textbook recommend? Clinic manual?
5 per arch, 4 per arch
what size film is used for anterior peri-apicals and how is it placed in the mouth
size 1, placed vertically
In anterior peri-apicals, what technique is when the beam is perpendicular to the long axis of the tooth and the receptor
parallel technique
in anterior, peri-apicals, what technique is used when the receptor and the long axis of the tooth are in line with each other
parallel technique
How many teeth can an anterior peri- apical capture
usually 2teeth ( max central incisors), 1 for laterals, 1 for canines, can do and centrolaterals
what colour instrument is used for posterior periapicals
yellow
To get all the max dentition what should the focal points be? (2)
center on first molar, center on second molar
To get all the mand dentition what should the focal points be? (2
partly on 1 and 2 molar, centre on 2M
