title: Radiographic trends of dental offices and dental schools.
abstract: BACKGROUND
  A survey of private practice facilities in the United States that perform dental radiography was conducted in 1993 and repeated in dental schools in 1995-1996.
  
  
  METHODS
  Both surveys were conducted as part of the Nationwide Evaluation of X-ray Trends, or NEXT, survey program. A representative sample of dental facilities from each participating state were surveyed, and data on patient radiation exposure, radiographic technique, film-image quality, film-processing quality and darkroom fog were collected.
  
  
  RESULTS
  The authors found that dental schools use E-speed film more frequently than do private practice facilities. The use of E-speed film and better film processing by dental schools resulted in lower patient radiation exposures without sacrificing image quality. The authors also found that dental school darkrooms had lower ambient fog levels than did those of private practice facilities.
  
  
  CONCLUSIONS
  The distribution for the 1993 NEXT survey facilities was greater than that observed for dental schools for radiation exposure, film-processing quality and darkroom fog. Dental schools, in general, had better film quality and lower radiation exposures than did private practice facilities.
  
  
  CONCLUSIONS
  Facilities need to emphasize better quality processing and the use of E-speed film to reduce patient exposure and improve image quality.
authors.affiliation: Radiation Programs, U.S. Department of Health and Human Services, Public Health Services, U.S. Food and Drug Administration, Rockville, Md. 20850, USA.
authors.forename: O H
authors.initials: OH
authors.lastname: Suleiman
authors.forename: D C
authors.initials: DC
authors.lastname: Spelic
authors.forename: B
authors.initials: B
authors.lastname: Conway
authors.forename: J C
authors.initials: JC
authors.lastname: Hart
authors.forename: P R
authors.initials: PR
authors.lastname: Boyce
authors.forename: R G
authors.initials: RG
authors.lastname: Antonsen
mesh_terms: D015502:Absorptiometry, Photon; D003625:Data Collection; D003770:Dental Offices / Q000639:trends; D006801:Humans; D019047:Phantoms, Imaging; D011829:Radiation Dosage; D011861:Radiography, Dental / Q000295:instrumentation / Q000639:trends*; D012575:Schools, Dental / Q000639:trends; D014481:United States; D014486:United States Food and Drug Administration; D014962:X-Ray Film