J Dermot Strahan was head of the department of periodontology at the Institute of Dental Surgery, Eastman Dental Hospital, London. This is a draft obituary. If you have any information about this surgeon or are interested in writing this obituary, please email lives@rcseng.ac.uk

Adrian William David Cowan, known as ‘Eddy’, was chief of the department of periodontology at Dublin Dental Hospital, a consultant oral surgeon in the city, and dean of the faculty of dental surgery at the Royal College of Surgeons in Ireland. He was born on 26 August 1919 in Dublin, into an Orth

John Zamet was a champion of periodontology in the UK. He founded the first exclusively periodontal practice in London in 1966 where he continued to work until his retirement in 2001. He was the first UK periodontist to participate in the Bränemark Osseointegration Programme. He was a gifted lecture