Olivia qualified as a dentist at King's College London with BDS Honours and was proxime accessit to the University of London Gold Medal. After qualifying as a dentist, she worked as a general dental practitioner at a practice in North London, and undertook her dental core training in oral and maxillofacial surgery at University College London Hospital and Great Ormond Street Hospital as well as paediatric dentistry at Guy's & St Thomas' Hospitals.

Olivia undertook specialist training in orthodontics at the Eastman Dental Hospital, qualifying with distinction and multiple national prizes including the British Orthodontic Society University Teachers Group Prize and the Houston Postgraduate Research Scholarship.

Olivia completed advanced consultant training at Great Ormond Street Hospital and the Royal London Hospital obtaining a Fellowship in Orthodontics with the Royal College of Surgeons, England. Olivia currently holds a part-time consultant orthodontist post at Great Ormond Street Hospital, managing complex and medically compromised patients. She is actively involved in research and has presented at conferences nationally and internationally.

Dr Olivia Johnson King is a Specialist and Consultant Orthodontist dedicated to helping patients achieve healthy, confident smiles through personalised orthodontic care.

She provides a range of teeth straightening treatments for both adults and younger patients, tailoring every treatment plan to their individual needs and goals. Her expertise includes Invisalign clear aligners, offering a discreet and convenient way to straighten teeth, alongside traditional fixed braces for precise and effective tooth movement.

Dr Johnson King also provides lingual braces, which are fitted behind the teeth for a more discreet orthodontic solution. With her specialist training and patient-focused approach, she helps patients achieve beautifully aligned smiles while supporting their long-term oral health.