Dr. Mark O'Hara

Your local award-winning dentist

Dentistry Awards 2013
Dentistry Awards 2014
Private Dentistry Awards 2016
Dentistry Awards 2016

About Dr Mark O'Hara

Mark qualified in 2009 from The Guy’s, King’s and St Thomas’s Dental Institute in London having won the Maurice Wohl General Dental Practice prize for clinical excellence in general practice care. Since his initial qualification, Mark has focused heavily on his postgraduate education and completed his Membership of the Faculty of General Dental Practice (Royal College Of Surgeons), a prestigious double masters degree from Kings College London in Fixed and Removable Prosthodontics, a post-graduate course in dental implantology and a post-graduate certificate in Clinical Education. Mark has also achieved fellowship of the Higher Education Academy in recognition of his commitment and high standards in providing postgraduate education to others.


Mark is currently working at the Causeway Dental Practice in Horsham, where he first started and is now the Managing Partner, leading a large team of dedicated like-minded dental care professionals. He is also a senior clinical teacher and deputy team lead at the Faculty of Dentistry, Oral & Craniofacial Sciences, King’s College London. Mark is also involved locally within West Sussex at the Local Dental Committee and is an examiner for the National Board of Dental Nursing.


In 2013 Mark was awarded the title of ‘Young Dentist of the Year’ for the South East Region in recognition of his commitment to high standards and the profession. He was shortlisted and made a finalist the following year for the same award. Through his leadership, his practice team have also been finalists over numerous years in the Dentistry Awards and Private Dentistry Awards for Best Patient Care, Best Practice, Most Improved Practice, Best Team and Best High Technology Practice.

Mark and his team have a dedication and passion to deliver the highest standard of patient care, so why not book an appointment today.







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Virtual Consultation

Are you looking to improve your smile or replace missing teeth? Do you have a concern about your teeth you want advice on? I am currently offering free online virtual consultations, let me know your concerns and easily upload some photos for me to review.

What Patients Say

" Me and my family, and there’s a lot of us have been coming to this dental practice for over 50 years!! Mark is a great dentist and always makes you feel at ease. The dental nurse is lovely and funny and the hygienist is excellent. I have recommended this practice to many of my friends who now come here."

- Vicki Pilkington -



We accept referrals for complex restorative and prosthodontics cases, implants and smile design/makeovers. We also have an in-house specialist endodontist with whom we can work with on cases should this be required and with your approval.

We will always keep the referring dentist fully informed along the patient's journey from start to finish, allowing them to be involved in the patients care for a truly shared care interdisciplinary experience, always acting in the best interests of the patient.

Referring dentists are welcome to visit the practice and be a part of the patient's treatment at any stage should they wish.

Once we have completed the patient's treatment on the scope of our referral, we will discharge the patient back to your ongoing care.

We have a passion for education and technology to enhance our patient's experience and improve the outcome of their treatment, from ongoing high-level quality education to intraoral digital scanners.

We believe in a clear pricing structure for patients with no hidden fees or surprises. We also offer a range of payment options including interest-free finance to help spread the cost.

Mentoring and Education

​Our passion for education is something we live and breath from growing our in house teams skill set to supporting external dentists in their own development.

Mark and his team are involved in the education at various levels from trainee nurses and dentists to postgraduate studies to advance our workforce and profession.

Mark is also involved in research activities and supervision of dissertation students through his role as a senior clinical teacher at the Faculty of Dentistry, Oral & Craniofacial Sciences, King’s College London.

Mark is happy to provide mentoring and support to other dentists to grow their skills and personal development plan or assist in the treatment planning of complex cases and build their portfolio.

Mark is also available to provide postgraduate education and CPD events.

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