CSCE Dental Hygiene Board Review Questions with Correct Answers Foreshortening - Correct Answers Too MUCH vertical angulation; decrease angulation Elongation - Correct Answers Too LITTLE vertical angulation; increase angulation Herringbone, "waffle pattern" - Correct Answers Backward placement of film; place the film with the smooth, white side next to the tooth and the bumpy side away (there is a lead foil on the backside of the film packet to prevent backscatter) Cracked emulsion - Correct Answers Sudden temp. changes between developer and fixer Darker areas - Correct Answers Developing solution touches film before processing procedure Light areas - Correct Answers Fixer solution touches film before processing procedure Yellow/brown stains on film - Correct Answers Exhausted solutions or insufficient washing Straight white border on film - Correct Answers Developer CUTOFF caused by incomplete immersion of film into developer Straight black border on film - Correct Answers Fixer cutoff caused by incomplete immersion of film into fixer Outline border of another film - Correct Answers Films stuck together in solutions White spots on film - Correct Answers Air bubbles trapped during processing Thin, black, branchlike lines on film - Correct Answers Static lines caused by low humidity and opening film packet too quickly Fogged films - Correct Answers Improper safelight, light leaking into darkroom, outdated film 1 / 2
"V" or shark's fin on PANO - Correct Answers Lead collar above line; lower collar position Exaggerated smile in PANO - Correct Answers Chin tipped too far down; reposition the chin Flat smile in PANO - Correct Answers Chin tipped too far up; resposition chin Mandibular incisors roots are blurred in PANO - Correct Answers Chin tipped too far down; reposition the chin Maxillary incisor roots are blurred in PANO - Correct Answers Chin tipped too far up; reposition chin One side shows larger teeth/condyle in PANO - Correct Answers Patient head is twisted; reposition the head, midsagittal plane perpendicular to the floor (the larger side is the distant side) White straight opacity in middle of PANO (Washington monument) - Correct Answers Slumping causing ghost image of the spine; move patient feet forward, straighten the spine and lean backward Shadow over maxillary teeth in PANO - Correct Answers Tongue not touching the roof of the mouth; have the patient swallow and reposition the tongue Airway shadow in an arch shape in PANO - Correct Answers Tongue not touching the roof of the mouth; have the patient swallow and reposition the tongue Anterior teeth thicker and wider in PANO - Correct Answers Chin placed behind the focal trough; reposition the chin forward, bite at the notch of the stick Skinny anterior teeth in PANO - Correct Answers Chin placed too far forward; reposition the chin back, bite at the notch of the stick Dark shadow on anteriors in PANO - Correct Answers Patient not closing lips; close lips around the biting block
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