Albert Geoffrey Alexander (1932-2010), known to all as Geoff or AGA, was a caring clinician, a compassionate teacher and a meticulous research worker. Geoff was born in Hull and obtained a scholarship at Bridlington School, where he became Head Boy. He was the first member of his family to attend university when he entered University College Hospital Dental School, University of London, where he collected the Sinclair Medal for the best student in his cohort. He obtained LDS in 1955, BDS in 1956, FDSRCS in 1961 and MDS in 1968. After graduating he held House Surgeon posts at The National Dental Hospital, did National Service in The Royal Army Dental Corp, ran the Student Dental Service at University College and had a year in private practice in Kent. In 1960 he became a full-time Lecturer in Conservative Dentistry, a Senior Lecturer in 1962, and an Honorary Consultant in 1967. He became Vice Dean of Dental Studies in 1974 and Dean, UCL Dental School and Vice Dean (Dental) of the Faculty of Clinical Sciences in 1977, a position he continued to hold until 1992. Geoff, with his wife Connie, then went to Hong Kong for two years as Head of Conservative Dentistry and Associate Dean of the Faculty of Dentistry. As well as working, they enjoyed showing visiting friends and colleagues the highlights of Hong Kong, especially the sky-scape of Hong Kong Island as seen, over a cup of tea, from the Terrace of the Peninsular Hotel on Kowloon. Geoff and Connie found time to go walking in Switzerland and Austria and later visited 'long haul' destinations such as Canada and Japan. When he retired, despite his long standing ill health, bravely borne, he developed an interest in computing and photography and continued his long standing enjoyment of music. Geoff had a significant impact on a whole generation of dental students who went through UCH Dental School. He was a kindly man who raised students' standards by professionalism, persuasion and example. He is survived by his wife Connie, his daughter Susan and two granddaughters, Christine and Elizabeth.