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what finger is used in the finger holding method for the maxillary right molar?
when using the bisecting technique foreshortening will occur if the central ray is directed perpendicular to what?
plane of the film
for premolar bitewings the front edge of the film should be aligned with the midline of which tooth?
what viruses are present in oral secreations
II hep b
III herpes simplex
I, II, III, IV
what is the absence of pathogens or disease causing microorganisms?
in dental radiography no _____ ______ are used
what is an example of a semicritical radiography instrument?
xray film holding devices
what kind of cleaning and disinfection should be used for the dental unit and environment?
which surfaces should be covered or disinfected
I control panel
II exposure button
I, II, III, IV
for the preparation of supples and equipment for radiology what must be sterilized?
film holding devices
during film processing film is oped with _____hands and unwrapped with ____ hands
what angle is bisected during the bisecting technique?
angle formed by film and long axis of the tooth
what is the primary benefit of using the film holder with the bisecting technique?
reduces patient exposure to radiation
in the bitewing technique the vertical angulation is predetermined, central ray is ____ degrees to the occlusal plane
when exposing CMRS with the bisecting techinque ____ size 2 films are used
what is the disadvantage of bisecting vs paralleling?
which size bitewing film is used with children with primary dentition
what is the exposure sequence for PA and BW
- ant PA
- posterior PA
- Bitewings last
when are vertical bitweings used?
looking at bone loss
_____ _____ is best evaluated when viewing bitewing xray
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