Dr Joseph Dargan, a native of Ballivor, Co. Meath, graduated from University College Cork in 1992 with a Bachelor of Dental Surgery degree, after which he worked in general practice for 5 years in Essex, England, before returning to Ireland to set up 329 Dental. He provides all general dental treatment, including composite bonding, particularly "direct placement" composite veneers.

Dr Fahad Kahn, a native of Blanchardstown, graduated from the University of Pecs, Hungary in 2014 with a Doctor of Dental Medicine degree. He has worked in General Practice in St Ives, UK and the Oral and Maxillofacial Dept of Princess Royal Hospital, Telford. He has a Master of Science (MSc) in Restorative Dentistry from the University of Birmingham, and is a Member of the Faculty in Dental Surgery (MFDS) in the Royal College of Surgeons, Glasgow. He has a special interest in non-surgical periodontal therapy, dental implants and Invisalign Go.