Making your Dental Experience as Pleasant, Relaxed & Easy as possible.

Welcome to O3 Dental, where we blend cutting-edge technology with warm and welcoming care. Our clinic offers a range of advanced treatments in a relaxed and comfortable environment. With state-of-the-art dental technology and a team dedicated to your comfort and satisfaction, you’ll experience exceptional dental care like never before.

Led by Mr. Damian Flanagan, a prominent implantologist and cosmetic dentist with over 25 years of experience, our clinic prioritises optimum treatment outcomes. Trained in renowned institutions in Harley Street, London, and the USA, Damian is known for his exceptional skills and esteemed reputation in the UK and Ireland.

At O3 Dental, we build lasting relationships with our patients based on trust and excellence. Our team is committed to making your dental journey a pleasurable one, delivering exceptional, long-lasting results for a healthy and beautiful smile. You can trust in our guaranteed quality and personalised care as we tailor treatment plans to meet your unique needs. Experience the difference of O3 Dental, where trust, confidence, and cutting-edge technology come together to provide you with the best dental care possible.

Our Treatments

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Cancer Screening

Missing teeth can be a concern, but dental bridges offer an effective solution. These bridges consist of artificial teeth, perfectly placed between your natural teeth, creating a seamless smile.

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Dental Cysts

A cyst is a sac of tissue that has either fluid or soft material inside it. It is not unusual for cysts to form in the mouth and jaw, usually in response to low-grade infection from an abscess.

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Buried Roots

Other teeth have long thin roots that break easily. Even just the force of extracting a tooth, if not done carefully, can result in bone or tooth breakage. The result is that part of the root remains in the jawbone and the gum heals across the top.

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Wisdom Tooth Removal

Missing teeth can be a concern, but dental bridges offer an effective solution. These bridges consist of artificial teeth, perfectly placed between your natural teeth, creating a seamless smile.

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Mini Dental Implants

Mini implants are a smaller, thinner version of standard implants. They are a more cost-effective way of providing denture stabilisation. However, as you might imagine, they are not as strong or long-lasting as a standard implant. To stabilise dentures, we must use six mini implants in the upper jaw and four in the lower.

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Gaps Between Teeth

Have you got unsightly ‘black triangles’ between your teeth and gums? Natural spaces between the front teeth (diastemata) can be quite beautiful, but you may wish to close yours.

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Smile Makeover

Leading cosmetic dentist Damian Flanagan has more than 25 years experience creating stunning smiles and is proud to bring all his passion and expertise to Ireland.

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Gum Treatment

Are you afraid to smile because of uneven or oversized gums or what appear to be teeth that are too short? Do you feel self-conscious when you talk to others?

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Root Canal Treatment

Root canal treatment is a highly effective dental procedure designed to save a severely damaged or infected tooth.

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Dentures

Full and partial dentures remain a popular solution to tooth loss, especially since denture technology has improved so that problems associated with poor fit have largely been addressed.

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Dental Bridges

Missing teeth can be a concern, but dental bridges offer an effective solution. These bridges consist of artificial teeth, perfectly placed between your natural teeth, creating a seamless smile.

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Teeth Veneers

Discover the power of veneers, fine porcelain slivers that beautifully cover imperfections, going beyond teeth whitening to restore colour, shape, and position.

Fantastic service here. Thanks again to Ronan and Leona for fitting me in for an appointment.
Caoimhe McDaid
Caoimhe McDaid
16:58 04 Oct 23
I really have to say that this is the best dentist. I've put off going to dentist for many years of my fear but the welcome experience and treatment I got from Damien and leona was incredible. I'm looking forward to going back for my check up. if your putting off going to a dentist for whatever reason please dont. I'm now questioning myself now why I didnt do this years ago. thanks so much Damien and leona x
justine mclaughlin
justine mclaughlin
19:26 25 Aug 23
The doctor works very fast and efficient. The nurse is kind and friendly. The prices are quite reasonable. I am happy with my treatment and definitely will come back again.
Lina McRae
Lina McRae
16:04 15 Aug 23
Had my first appointment at O3 Dental in Letterkenny this morning and it was fantastic. Staff were super friendly and the service was outstanding could not recommend enough. Big thank you to Dr Damian Flanagan and Nurse Leona!!
Rory Chambers
Rory Chambers
13:35 25 Jul 23
I have been to several dental clinics in Letterkenny, but 03 is the best by far. They are highly professional and polite. I had a wisdom tooth extraction, and it went great. I will be returning to the clinic for all of my dental needs. They are brilliant, do not hesitate to give them a call.
Mario Kostadinov
Mario Kostadinov
11:58 31 May 22
Going to the dentist before, I always had feelings of trepidation- but thanks to Mr Flanagan not anymore.The moment I entered his state of the art surgery Damian put me totally at ease. He talked me through all my various options and throughout my treatment explained what he was doing. I had root canal treatment, crowns and veneers which lots of my friends have complimented me on. I would have no hesitation in recommending Mr Flanagan for his professionalism and his wonderful staff.
paula mckay
paula mckay
20:35 07 Nov 17
facebook reviews for o3dental letterkenny
Fantastic service here. Thanks again to Ronan and Leona for fitting me in for an appointment.
Caoimhe McDaid
Caoimhe McDaid
16:58 04 Oct 23
I really have to say that this is the best dentist. I've put off going to dentist for many years of my fear but the welcome experience and treatment I got from Damien and leona was incredible. I'm looking forward to going back for my check up. if your putting off going to a dentist for whatever reason please dont. I'm now questioning myself now why I didnt do this years ago. thanks so much Damien and leona x
justine mclaughlin
justine mclaughlin
19:26 25 Aug 23
The doctor works very fast and efficient. The nurse is kind and friendly. The prices are quite reasonable. I am happy with my treatment and definitely will come back again.
Lina McRae
Lina McRae
16:04 15 Aug 23
Had my first appointment at O3 Dental in Letterkenny this morning and it was fantastic. Staff were super friendly and the service was outstanding could not recommend enough. Big thank you to Dr Damian Flanagan and Nurse Leona!!
Rory Chambers
Rory Chambers
13:35 25 Jul 23
I have been to several dental clinics in Letterkenny, but 03 is the best by far. They are highly professional and polite. I had a wisdom tooth extraction, and it went great. I will be returning to the clinic for all of my dental needs. They are brilliant, do not hesitate to give them a call.
Mario Kostadinov
Mario Kostadinov
11:58 31 May 22
Going to the dentist before, I always had feelings of trepidation- but thanks to Mr Flanagan not anymore.The moment I entered his state of the art surgery Damian put me totally at ease. He talked me through all my various options and throughout my treatment explained what he was doing. I had root canal treatment, crowns and veneers which lots of my friends have complimented me on. I would have no hesitation in recommending Mr Flanagan for his professionalism and his wonderful staff.
paula mckay
paula mckay
20:35 07 Nov 17