Dr. Gavin Deasy

Gavin attained an honours degree in Biochemistry from University College Cork in 1996, and a Diploma in Computer Science in 1997. He studied Dentistry qualifying as a Dental Surgeon in 2001. He worked in private practice in Kent for three years, attaining a Diploma in Dental Homoeopathy and returned to Ireland in 2004 to work in a holistic practice in Kilkenny that specialised in composite restorations and Cerec restorations.

He joined OCM Dental Team in 2012 and attained a Masters with Merit in Orthodontics from the University of Warwick, U.K. He practices Orthodontics in Castlebar, Devon, UK, and at OCM Dental Practice. Our Dentists serve the province of Connaught.


Latest Techniques

The dentists at O Connor Moore in Sligo provide the very latest in dental techniques including Twilight Sedation for Nervous Patients.

Innovative Technology

O Connor Moore Dental Practice offers the very latest in dental technology and is committed to continuing professional development.


With 4 state-of-the-art dental surgeries and flexible opening times, O Connor Moore Dental Practice is always on hand to provide you with expert and professional dental care.

I got my orthodontist treatment here from Gavin and the braces have completely changed my teeth. I’m far more confident in my smile now thanks to him. The entire process was explained to me as it happened which gave me a far better understanding of it. The braces were completely worth the time and the price and I would highly recommend them“.

Oisin Davey

I am usually very nervous with dentists, but Ii went to Gavin and had a great experience.
Very friendly staff and professional service.
Would definitely recommend.


“My visit with Gavin Deasy at OCM Dental was to fit two new porcelain crowns in replacement for ones that had been badly re-fitted. Gavin took great care to walk me through each step and discuss the best approach both for my dental care, and for my pocket.  I look forward to continuing my dental treatment under their attentive and efficient care

Dee Walsh

Call: 071 916 2622

17 Wine Street, Sligo

Working Hours

Mon: 9.30am to 7.00pm
Tues – Fri: 9.30am to 5.30pm

Nervous Patients

Read about  our Twilight Sedation