Isabelle obtained her BDS in 1989. She entered the Specialist list in 1999 and qualified as a Consultant in Paediatric Dentistry in 2000, completing her training at the Eastman Dental Hospital (UCLH Foundation Trust). Following Consultant posts for Beds and Luton Primary Care Trust and Guys and St Thomas' NHS Trust (since renamed Kings NHS Trust) she returned to the Eastman in 2003. Isabelle also worked for Latchford and Latchford treating children between 2000 and January 2006.

Following a career break in 2007, Isabelle remains a part-time Consultant at the Eastman and is a lecturer for University College London participating in two postgraduate certificate courses in sedation and paediatric dentistry. Isabelle has a special interest in the management of inherited dental anomalies and treating anxious children and adolescents. She lectures and has published regarding the use of inhalation sedation. In 2009 Isabelle also provided locum Consultant sessions at Great Ormond Street Hospital for Sick Children. Isabelle is at Latchford and Latchford on Wednesday afternoons.