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General Dental Council registered 62961


Katherine trained as a dentist at Guy’s Hospital London and has worked in London, Germany, and Africa and has also lived in Hong Kong. She joined this practice in 1997, having owned a large practice in Bromley and became principal here in 2003.

Katherine has done numerous postgraduate courses, including recently at the Eastman Dental Hospital UCL. She lives in the house at which the surgery is located, and as a single handed practitioner will provide all your individual care so you can build up a trusted relationship with one person. Katherine does volunteer dental training of healthcare personnel in Africa every year.

Katherine Opie-Smith BDS Dentist

Katherine Opie-Smith

General Dental Council registered 6538


Poppy joined the practice in 2004 having qualified from King’s Dental School as a hygienist, and was also a fully qualified Dental Nurse with distinction before that. She has postgraduate training in teaching, radiography, anaesthetics, sedation, tooth whitening and many other subjects. She is also a volunteer Community Responder with The South East Coast Ambulance Service and therefore has a high level of training in Life Support and Equipment. Outside of work, Poppy is a keen horsewoman and has a Level 3 Parelli qualification too.

Poppy Walsh Hygienist

Claire O’Brennan Practice Nurse


General Dental Council Registration Pending (Trainee)


Claire has lived around Dulwich for almost fourteen years and has children at local schools, so knows the area very well. Before working at the practice, she worked for a local dentist in the field of administration, Continuing Professional Development and management. She is currently working towards her Clinical Dental Nursing Qualification, and has covered modules in Decontamination and Sterilisation, Medical Emergencies, CPR, Defibrillation, Anaphylaxis, Radiation and many other subjects. As a mother of three charming boys, there isn’t really such a thing as ‘spare’ time, but there’s plenty of quality time with friends, family and occasionally at the gym to keep her sane.