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University of Iowa News Release


Oct. 25, 2007

Dental student receives research award

Abby Shannon (photo, left), a fourth-year student in the University of Iowa College of Dentistry, recently received a research award from the American Dental Association (ADA) and DENTSPLY International.

Shannon received the first-place award in the clinical research/public health category at the ADA/DENTSPLY Student Clinician Research Program. Her research presentation was the top choice among projects submitted by students from 52 U.S. dental schools who participated in the competition. Shannon was honored at the groups' 48th annual student clinician research program and reception, held Sept. 29 in San Francisco.

Shannon's research compared traditional methods of dental crowning, such as casting, to new computer-aided design/computer-aided manufacturing (CAD/CAM) methods. CAD/CAM methods allow a prepared tooth to be scanned and a crown milled specifically for that tooth.  Shannon investigated the amount of gap between the crown and the tooth in different CAD/CAM systems, looking specifically at the material zirconia. The research showed that CAD/CAM systems are comparable to traditional methods.

"The research is important because using this new technology is becoming more popular, and it is important that its quality is the same as the traditional cast crown," Shannon said.

The UI is one of 19 U.S. dental schools that has sent a student clinician to participate in this program every year, either since the program's inception or since the school opened.

STORY SOURCE: University of Iowa Health Science Relations, 5139 Westlawn, Iowa City, Iowa 52242-1178

MEDIA CONTACT: David Pedersen, 319-335-8032,; Writer: Brandy Huseman