click below
click below
Normal Size Small Size show me how
DEH 203
Rules of shadow casting
Question | Answer |
---|---|
RULE 1 | Use the smallest possible source (target) of radiation |
RULE 2 | The object (tooth) and receptor (film or sensor) should be as close together as possible |
RULE 3 | The object (tooth) and receptor (film or sensor) should be parallel |
RULE 4 | The object (tooth) should be as far away from the source of radiation (Target) as possible |
RULE 5 | That X radiation must strike both the receptor (film or sensor) and object (tooth) at right angles |