Who We Are

Our team consists of a dedicated group of professionals committed to providing you with the utmost attention and personalised, professional care.

Lester Clifford

Lester founded this practice in 1985. He graduated from Sydney University in 1982 , and after many years in teaching and private practice, he traveled to London to attain his masters degree in periodontics with distinction.
Lester now mainly focuses on Periodontics and Implant Dentistry and draws on his broad experience in the comprehensive management of patients. Over the last 30 years he has gained extensive experience in all areas of dentistry. He is currently a Clinical Mentor to students of the Graduate Diploma in Implant Dentistry at TheUniversity of Sydney.

David Argent

David has had a somewhat eclectic background, starting his dental career in Canberra way back in the early eighties, before spending a few exciting years as a reporter and presenter with ABC radio.
David joined this practice in 1990, and has more than 30 years experience as a dentist. He takes pride in the quality of all his clinical work and regularly attends professional development courses to keep up-to-date with the rapidly-changing world of modern dentistry. His special interest is in the field of orthodontics, for both adults and children. David is an accredited Invisilign provider, and a member of International Association of Orthodontists (IAO).
Outside of dentistry, David is a keen cyclist and Tae Kwon Do black belt. He enjoys snow skiing and playing the electric bass. David also enjoys spending time with family and friends whenever the opportunity presents.

Joshua Green

Josh obtained his Bachelor of Dentistry (Honours) from the University of Sydney in 2008. In 2014 he completed a three year Master of Science in Aesthetic Dentistry at King’s College in London, graduating with award of Distinction. This training furthered Josh’s passion to perfect his patients smiles through a range of aesthetic techniques including: implants, bleaching, aesthetic fillings, veneers, onlays, crowns and bridges. The focus of his dissertation was on dental implantology, a particular area of interest for Josh in which he now mentors others at The University of Sydney.
Josh was awarded Fellowship of The International Congress of Oral Implantologists (FICOI) in 2012, in recognition of his proficiency in implants on an international level. In 2015 he was awarded Membership of the Royal College of Surgeons of England in the Faculty of General Dental Practitioners (MFGDP RCS England).
Prior to dentistry he obtained a Bachelor of Science in Anatomy (Honours). Between his science and dental studies he worked as a ski instructor for five years in Colorado.
Josh’s calm gentle nature makes him easily approachable, and helps anxious patients feel at ease. In his leisure Josh enjoys time with his young family and skiing (or at least dreaming of it and inspiring a passion for skiing in his young children).

Dr Amy Dempster

Dr Amy Dempster

Karen Wood

Karen joined Wahroonga Valley Dentistry as a dental hygienist in 2005. She graduated from the Royal London Hospital,Whitechapel,London in 1996 with a Diploma in Dental Hygiene & Dental Therapy. Previously Karen has worked in public hospitals, and private practices in the UK and also Sydney.

Karens role within the practice is prevention of gum disease and tooth decay, preventive care treatments, oral hygiene and dietary advice, and the treatment of gum disease to maintain optimum dental health.

Karen is easy to talk to, is attentive and enjoys nurturing her patient relationships. She enjoys spending time with her daughter, has a keen interest in photography and can make a mean curry.