Rubber dams.
Devlin
M F
MF
D003762:Dental Instruments / Q000009:adverse effects; D005547:Foreign Bodies / Q000000981:diagnostic imaging*; D006801:Humans; D017410:Practice Guidelines as Topic; D011860:Radiography, Abdominal; D013902:Radiography, Thoracic; D011871:Radiology / Q000592:standards; D018915:Root Canal Preparation / Q000295:instrumentation*; D016733:Rubber Dams