1. Questions? Contact Kantar Media Healthcare Research (609) 987-5579 2015 Dental Hygiene Readership Study Facts

2. 2015 Dental Hygiene - Data Collection The data in this report are comprised of two data collection periods. The most recent cycle of Dental Hygienist Readership data were gathered via mail questionnaires between February 2015 and May 2015. The sample received an original mailing in February and a follow-up in April. A monetary incentive accompanied each questionnaire. Two rotations of each questionnaire were distributed on an every-other-name basis. The publications were assigned a unique random rotation on each version of the questionnaire. The questionnaire included a color representation of each publication. For the 2015 survey, the mailing house that supplied universe counts and made the nth-name selections was Direct Medical Data, in Des Plaines, Illinois.

3. 2015 Dental Hygienists - Specialties Studied and Universes Dental Hygienists Total Respondents:165 Universe:156,809

4. 2015 Dental Hygiene - Additions/Deletions Publications Studied A total of 8 publications were included in this survey. General criteria used for selection of the 8 publications were (1) a publication frequency of at least 4 times per year, (2) circulation to at least 20 percent of the universe of a given specialty, (3) acceptance of advertising from several advertisers and (4) a minimum of four issues published as of February 2015. NOTE – If a publication scored below 20% in receivership for a particular specialty for two consecutive years, that publication was not reported on the tables for that specialty. Publications Added The following publications were studied for the first time in 2015. Please note the Initial Date of Publication information. Although every effort is made to identify and measure new publications a soon as they have 4 to 6 issues out, there are occasions where a publication is available for a few years before it is studied. If a publication has been in the market for a few years before it is studied, its readership and exposure scores should be compared to established publications rather than to new introductions. Publications Added No publications deleted in 2015 Publications Deleted No publications deleted in 2015

5. 2015 Dental Hygiene- Publication Grid