About Us

Since July 2016 Castle Square Clinic has been under ownership by Nia Hughes-Jones who took over the practice from Mr and Mrs Humphreys. Nia and her team look forward to welcoming patients old and new, continuing to provide an exemplary dental service.

For our patients comfort, we have a large flat screen television and a wide up-to-date magazine selection in our modern reception area. Our surgeries are also equipped with the latest technology and have lovely views of the harbour and Caernarfon square.

At present due to the existing layout, our B listed premises surgeries are not accessible to wheelchair users and we are unable to provide a disabled toilet.

Our Team regularly attend training courses to keep up to date with the latest developments in dentistry to deliver a highly professional service.

Below you can find pictures and profiles of the team at Castle Square Clinic.

Caernarfon Dentist

Meet the Team

  • image

    Nia Hughes-Jones, BDS, MFDS - Principal Dentist/Owner

    Nia is the principal dentist at Castle Square Clinic since July 2016.
    She qualified in 2002 from UWCM in Cardiff. Since then she has worked in the hospital environment and passed her Royal College of Surgeons exams in 2006. She purchased a practice in the mumbles in 2009 but decided to come back to the Caernarfon area in the last couple of years.


    GDC 80770

  • null

    Sarah Rhys-Thomas, BDS, BFC - Dentist

    Originally from the Llyn peninsula, Sarah graduated from UWCM Cardiff in 2000 having gained a BSC in dental science as well as her dental qualification. She worked in Swansea for a year before returning to live and work in Anglesey. Sarah has been an associate with us since 2017 and is fluent welsh speaker.


    GDC 77570

  • image

    Nici Rowlands - Hygienist

    Nici has been a part-time hygienist at The Castle Square Clinic since Feb 2007. She worked as a dental nurse (qualified May 2003) in her early career and then went to Liverpool Dental School in Oct 2004 for 2 years, qualifying as a dental hygienist in 2006. She has become an invaluable member of our practice team, being relentless in keeping our patient’s mouths in tip top condition and showing them how to keep them that way in between visits. You may come across her helping out at reception in the odd spare minute she has. A dedicated professional, appreciated by both the other members of the practice team and all the patients.


    GDC 103801

  • null

    Kelly Thomas - Dental Nurse/Receptionist

    Kelly has been employed at the practice since July 2018. She works in surgery and occasionally on reception. Kelly is Kind and considerate. She is the loving mother of two children Kia and Jac.

    Kelly has passed her City & Guilds Diploma in Dental Nursing. She is hard working and always willing to help others.

    GDC 28940

  • null

    Ffion Jones - Dental Nurse/Receptionist

    Ffion started with the practice in December 2018 she is a fluent welsh speaker.

    She works in surgery and can also be found on reception occasionally.

    Ffion is a kind and considerate person and is always willing to help.

    She has passed her City & Guilds Diploma in Dental Nursing.

    GDC 288716

  • image

    Henryette Hamilton - Dental nurse/receptionist

    Henry has worked with the practice on a part-time basis since July 2014. She works in the surgery and on reception occasionally, she is extremely pleasant, very helpful and considerate & works well within our team. She qualified as a dental nurse in 1991 at Utrecht College in Holland. Henri has now configured that to an NVQ Qualification.

    GDC 289395