Dental Hygienist and Therapist. GDC Registration No: 227585. From September 2012 we welcome Cassandra as our Dental Therapist, who is qualified to carry out both hygiene work and a range of restorative procedures such as silver and white fillings on adults and children. In her preventative practice she cleans and maintains the health of our patients’ teeth and gums and also gives advice and support to aid our patients in their general home dental care. Qualifying in 2012 from the University of Birmingham, Cassandra was a high achiever throughout her years of study, gaining the University of Birmingham 2012 prize for excellence in her final year of study.