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J Dent Educ. 70(2): 160-168 2006
© 2006 American Dental Education Association
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Milieu in Dental School and Practice

Longitudinal Trends in the Use of Individualized Radiographic Examinations at Dental Schools in the United States and Canada

Mel L. Kantor, D.D.S., M.P.H., Ph.D.

Key words: dental radiology, dental health services, practice guidelines, dental education, radiology education

Submitted for publication 06/20/05; accepted 10/11/05

In the spring of 2002, a mail survey was conducted to determine the use of individualized radiographic examinations (selective radiography) for comprehensive care patients at all sixty-four U.S. and Canadian dental schools. Results from previous surveys were used to evaluate the long-term longitudinal trends. Among sixty-two schools (97 percent response rate), selective radiography was used by 34 percent of schools for dentulous adult patients, by 100 percent for edentulous adults, and by 28 percent for children. Having a credentialed chief of service increased the likelihood that selective radiography would be used for dentulous adults (odd ratio[OR]=2.36) and for children (OR=2.33). Selective radiography for dentulous adults increased from 2 percent of schools in 1977 to 36 percent in 1997 and leveled off thereafter. Between 1987 and 2002, selective radiography for edentulous adults was used at nearly all schools (96–100 percent) and for children at about a quarter of dental schools (22–28 percent). Among the sixty-one schools for which there are complete data since 1987, the continuous use of routine radiography was most common (39 percent of schools) for dentulous adult patients, whereas the continuous use of selective radiography was uncommon (7 percent).




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