Declan O’Neill

Dental Doctor & Practice Owner

After graduating from Queens University Belfast in 1992, Declan took up work in one of the dental Practices in Omagh for 1 year as a Vocational Trainee. Gaining valuable experience Declan then moved on to work in Private practice in Irvinestown and a mostly NHS practice in Castlederg before being asked to move back to Omagh. Staying in Omagh for 10 years, Declan used the opportunity to attend multiple post graduate courses and in 2003 completed a 1 year course in Osteo- ti Dental implants. In the Autumn of 2004, Declan  with Miss Julie Baxter opened Castle Dental Studio- a practice they have built up over the last ten years.

Declan has treated about 170 patients using Invisalign. This is a treatment deisned to move teeth using a series of clear aligners. He has also brought Lumineers into the practice to offer his patients a wide range of cosmetic treatments.

In April 2011 Declan completed a year long restorative dentistry course under the tutorship of well known restorative dentist, Mr Paul Tipton. Declan hopes to continue with these studies in the near future.

Declan has been a member of the British Dental Association (BDA ) since he was a student at Queens University Belfast and continues to attend many post graduate courses and lectures to further benefit himself and his patients.

Siobhan McAlary (GDC No: 147998)

Practice Manager

Siobhan has been working in dentistry since 1990. She has gained valuable experience in all fields of dentistry. Joining Castle Dental Studio from its inception. Siobhan attained her National Examination in Dental Nursing in 2005. Siobhan has valuable experience in the reception area having worked there for nine years

Julie Bann (GDC No: 159086)

Dental Nurse

Julie joined us in 2004. She has been doing dental nursing for 22 years now. Gaining her National Examination in Dental Nursing in 2003, Julie has attended courses in Invisalign, Lumineers and cross-infection control.

Claire Cuthbertson

Dental Nurse

Claire joined us in March 2020 and completed her diploma in Dental Nursing Level 3 July 2022.

Natasha Leonard

Dental Nurse

Natasha joined us in December 2020 and completed her diploma in Dental Nursing Level 3 February 2023.

Teresa McGarrity


Teresa joined Castle Dental studio in December 2020 having worked in administration for many years.

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