JDR increases Five-Year Scientific Impact Factor

Today the International and American Associations for Dental Research announced that its Journal of Dental Research (JDR) has increased its Five-Year Scientific Impact Factor (SIF) from 4.195 to 4.389. In the Dentistry, Oral Surgery & Medicine" category, the Journal ranked #1 in Article Influence. This news comes from the new 2010 Five-Year Scientific Impact Factor (SIF) rankings, published by the Journal Citation Reports (JCR). This latest report also shows that the JDR ranks #2 in the Two-Year Impact Factor rankings, with a rating of 3.773.

The SIF is a measure of the frequency with which the average article in a journal has been cited in a particular year. The Impact Factor helps to evaluate a journal's relative importance, especially when compared with others in the same field.

The Impact Factor was developed in the mid-sixties by Eugene Garfield, of the Institute for Scientific Information (ISI, Philadelphia, Pa.). It is based on the premise that the more often the articles in a particular journal are referenced by other articles, the greater the "impact" that journal has in its field. The Impact Factor is calculated by ISI on an annual basis, and is available only through ISI's Journal Citation Reports.

"The JDR as number one in article influence is a key factor in demonstrating the high-quality manuscripts submitted to and published in the Journal. The cutting-edge science is also reflected in the rising SIF the Journal realized in 2010," said JDR Editor-in-Chief William Giannobile. "I am confident that the JDR will continue to be known for its quality with the high-caliber of manuscripts received and the excellent team of reviewers and associate editors who ensure that the JDR publishes research that will be actively read and cited in the field."

At .02261, the JDR continues to hold the highest Eigenfactor Score of journals published in the "Dentistry, Oral Surgery & Medicine" category. The Eigenfactor Score calculation is based on the number of times articles from the journal published in the past five years have been cited in the JCR year, but it also considers which journals have contributed these citations so that highly cited journals will influence the network more than lesser cited journals. References from one article in a journal to another article from the same journal are removed, so that Eigenfactor Scores are not influenced by journal self-citations.