title: Radiobiologic risk estimation from dental radiology. Part II. Cancer incidence and fatality.
abstract: With the use of the measured absorbed doses from part I of this article, the specific radiobiologic risk to the patient from (1) five different panoramic machines with rare-earth screens, (2) a 20-film complete-mouth survey with E-speed film, long round cone, (3) a 20-film complete-mouth survey with E-speed film, long rectangular cone, (4) a 4-film interproximal survey with E-speed film, long round cone, and (5) a 4-film interproximal survey with E-speed film, long rectangular cone, was calculated. The estimated risks are expressed in two ways: the probability of radiation-induced cancer in specific organs per million examinations and the probability of expression of a fatal cancer per million examinations. The highest risks calculated were from the complete-mouth survey with the use of round collimation. The lowest risks calculated were from panoramic radiography and four interproximal radiographs with rectangular collimation.
authors.affiliation: Department of Dental Diagnostic Sciences, School of Dentistry, University of Texas Health Science Center, San Antonio.
authors.forename: T E
authors.initials: TE
authors.lastname: Underhill
authors.forename: K
authors.initials: K
authors.lastname: Kimura
authors.forename: I
authors.initials: I
authors.lastname: Chilvarquer
authors.forename: W D
authors.initials: WD
authors.lastname: McDavid
authors.forename: R P
authors.initials: RP
authors.lastname: Langlais
authors.forename: J W
authors.initials: JW
authors.lastname: Preece
authors.forename: G
authors.initials: G
authors.lastname: Barnwell
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007953:Leukemia, Radiation-Induced / Q000453:epidemiology / Q000401:mortality; D008297:Male; D008875:Middle Aged; D009381:Neoplasms, Radiation-Induced / Q000453:epidemiology* / Q000401:mortality; D011829:Radiation Dosage; D011853:Radiobiology; D011861:Radiography, Dental / Q000009:adverse effects / Q000295:instrumentation; D011862:Radiography, Panoramic / Q000009:adverse effects / Q000295:instrumentation; D012307:Risk Factors; D014962:X-Ray Film; D014963:X-Ray Intensifying Screens