WHO ARE WE?
We are a husband and wife team with over 48 years of combined experience. We graduated from the Cork Dental School in 2001 and have been practising dentistry ever since. We live in Co. Sligo with our three young children. Gavin likes to keep fit and has a passion for all sports, especially rugby and tennis. He enjoys a spot of fishing, getting into the sea, and the peace of nature. Fionnuala enjoys painting, cookery, hiking, embroidery and music. She has a keen interest in art and antiques and loves to spend quiet time in nature. We both cherish spending quality time with our family in the outdoors.
WHY WE DO WHAT WE DO
In 2025, we established Deasy Dental and Orthodontic Care with the mission of delivering the highest standard of dental care in a relaxing and calm environment, using the latest in modern technology. We are committed to fostering honesty and transparency in all our interactions and hope that everybody we encounter on our journey leaves feeling better for having met us. It is a priority for us to really take care of our patients, and we look forward to providing dental care to the people of Ballisodare and the surrounding hinterland.
Dr.Gavin Deasy
BSc (Hons), HDip Comp Sci, BDS NUI, DDH, MSc (Orth), FPFA, FIADFE.
Dr Gavin Deasy, a Cork native, has been living in Sligo since 2006. He attained an honours degree in Biochemistry from University College Cork in 1996 and a Higher Diploma in Computer Science in 1997. Gavin studied Dentistry at University College Cork, qualifying as a Dental Surgeon in 2001. Gavin was chosen as an undergraduate to represent Cork Dental School on a student exchange to Baltimore Dental School, U.S.A. in 1999.
Gavin obtained a M.Sc  in Orthodontics from the University of Warwick, U.K. in 2017. He is currently pursuing another M.Sc in Orthodontics and Dentofacial Orthopaedics through a mini-residency program based in Australia under the guidance of renowned Orthodontist Dr. Derek Mahony.
In 2023, Gavin was honoured with a Fellowship from The International Pierre Fauchard Academy for his exceptional contributions to the field of Dentistry. Additionally, in 2024, he received a Fellowship from the International Academy for Dental-Facial Esthetics for his work on the impact of maxillary arch expansion on nasal breathing.
Gavin is a member of the British Orthodontic Society and has been nominated for the Colgate Caring Dentist of the Year Award 2024.
- BSc (Hons)
 - HDip Comp Sci
 - BDS NUI
 - DDH
 - MSc (Orth)
 - FPFA
 - FIADF
 
Dr.Fionnuala Gannon
BDS NUI Dip Clin Dent
Dr. Fionnuala Gannon graduated from Cork Dental School in 2001. She was nominated for the Gurr Prize in Dental Histology during her undergraduate studies. In 2002, she completed the Certificate in Vocational Dental Training and worked between the North Western Health Board and Pearse Road Dental Practice. After spending three years working between community and private practice, she joined O’Connor Moore Dental as a full-time associate in 2005. She worked in this practice until 2025. Fionnuala was awarded a Diploma in Clinical Dentistry in 2007 from the Dublin Dental Hospital, Trinity College.
- BDS NUI. 2001
 - Dip Clin Dent. 2007
 
Ewa O’Kelly
Dental Hygienist
Ewa qualified from Trinity College Dental School in 2020, where she received the award for Best Clinical Skills. She has worked in a diverse range of dental clinics, spanning general practice, orthodontic, and periodontal settings. These varied experiences have equipped her with valuable skills in treating nervous patients, maintaining implants, and performing cosmetic work.
Ewa is committed to continuous professional development; she regularly attends seminars and conferences to stay updated on the latest advancements in dental care, ensuring she provides the highest quality treatment for her patients. Her kind and gentle demeanour puts the patients at ease.
Lisa Fox
Dental Nurse
Lisa is a Registered Dental Nurse with the Dental Council of Ireland. She studied at Letterkenny Institute of Technology, where she qualified in 2016 with a Distinction in the Higher Certificate in Dental Nursing. In 2017, she obtained a Specialist Certificate in Health Promotion (Oral Health) from the National University of Galway. In 2022, Lisa earned a Certificate in Business Management from Griffith College. Most recently, in 2024, she received a Distinction in Dental Radiography from Cork University Dental School and Hospital. Lisa’s friendly and approachable nature brings comfort to the patients, and she is delighted to be a part of the Deasy Dental team.
Veronica Cawley
Receptionist
Veronica, our receptionist, is also a qualified dental nurse. She graduated from Trinity College in 2017, earning a diploma with distinction and receiving an accolade for achieving the best overall results in her class. Throughout her professional career, she has consistently worked in front-line positions that involve direct interaction with the public. Her compassionate nature allows her to calm even the most anxious patients, making them feel at ease. She is delighted to be part of the Deasy Dental team.