About Castlemill Dental
A modern dental clinic built on honesty, skill, and genuine care for every patient.
Balbriggan's Advanced Dental Clinic
Dentistry Built on Trust
Castlemill Dental is a modern clinic specialising in advanced diagnostics and treatment of dental and oral disorders. We serve patients from Balbriggan, Skerries, Rush, Lusk, Swords, Drogheda, and across the wider Fingal and North County Dublin area.
Founded by Dr. Nicholas O'Kane, the clinic has built a reputation for honest, transparent care and outstanding clinical results. We only recommend treatment that is genuinely in your best interest — and we explain everything clearly so you can make informed decisions about your dental health.
We are a VHI registered clinic offering state-of-the-art treatments in a calm, comfortable environment. We also accept DeCare, Laya Healthcare, and Irish Life Health dental insurance.
How We're Different
We've built Castlemill Dental on principles that are increasingly rare in modern healthcare.
Advanced Technology
Digital X-rays, the Ankylos® implant system, Damon Ultima orthodontic brackets, and the Chao Pinhole Surgical Technique® — we invest in the best tools so you get the best outcomes.
Honest Advice
We only recommend treatment you actually need. Dr. O'Kane is known for telling patients the truth — even when that means saying 'you don't need anything right now.'
Transparent Pricing
All prices are confirmed in writing before treatment begins. No surprises, no hidden fees. We also offer 0% interest-free finance to make treatment accessible.
Explore More
Meet Dr. O'Kane
Ireland's most qualified Damon practitioner. First in Ireland to complete the Advanced Master Damon course.
Learn MoreWhy Choose Us
Ethics-first dentistry, advanced technology, 0% finance, and genuinely caring staff.
Learn MoreOur Location
Castle Mill Shopping Centre, Balbriggan — free parking, easy access from the N1.
Learn MoreOpening Hours
Monday–Friday 9am–6pm. Saturday by appointment. Same-day emergencies welcome.
Learn MoreDental FAQs
Answers to our most frequently asked questions about treatments, costs, and appointments.
Learn MoreSmile Gallery
Before and after photos showcasing real patient transformations.
Learn MoreReady to Get Started?
Book a consultation with Dr. O'Kane and find out what's possible for your smile.