Engineering:Rinn's film holders
From HandWiki
Rinn's film holders, also called XCP (X-tension C-one P-arallelying), are devices used for endoral radiographs applying the parallel ray technique. They ensure that film will be perpendicular to X-rays. Their colors can be:
- Yellow for lateral teeth (molars and premolars)
- Blue for anterior teeth (incisors and canines)
- Red for bite-wing radiographs
- Green for "under dam" radiographs, i.e. radiographs shot when the dental dam is still on.
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