Siobhan Kelleher speaks to Barbara Derham and Jeannine Byrne about the International Symposium of Dental Hygiene, which comes to Ireland next year. Congratulations to the Irish Dental Hygienists Association on achieving the honour of hosting the International Symposium of Dental Hygiene (ISDH). Can you tell us a little about the journey? Barbara: In 2004 IDHA … Continued