Meet the Team

At A-Line Dental Services we are proud of our elite team of dental technicians who have over 180 years of dental experience combined, so you know you are in good hands.

  • Colin Caster

    Managing Director

    The founder of A-Line Dental Services, Colin, qualified in Dental Technology in 1984 and has undertaken further training to gain qualifications in prosthodontics, crown and bridge and maxillo facial technology. A firm believer that technical knowledge is just as important as practical skill, Colin seeks to keep up to date with the latest advances in dental technology, making sure A-Line Dental Services is a front runner in modern dental laboratories.

  • Mark Maley


    MBA. Dip.CDT (RCSEd). RCDT. RDT.

    Mark joined the team in 1990. Mark gained his initial qualification in 1988 at Newcastle College and has since furthered his knowledge gaining advanced qualifications in prosthodontics, orthodontics and crown and bridge. Most recently in 2009, he attended the Edinburgh Dental Institute, qualifying as a Clinical Dental Technician with Dip.CDT (RCSEd). During his 30 years in dental technology Mark’s main interest lies in implant based restorations from a single tooth to complex full arch restorations.

  • Arthur Watson


    Arthur qualified in 1979 from Newcastle College and gained his advanced crown and bridge in 1982. Served at the dental hospital as a Senior Technician after which he became self-employed and together with Ian formed RJL Ceramics in 1989. His special interest lies within crown, bridge and implants. He has produced crowns and veneers for TV personalities, eminent sports men and women and members of the House of Lords.

  • Ian Johnson


    Qualifying from Newcastle College in 1979, Ian gained his advanced crown and bridge in 1990. Ian worked in private practice until 1989 when together with Arthur formed RJL Ceramics. His special interest lies in dental ceramics and now both Ian and Arthur are an integral part of our growing crown and bridge department.

  • Clare Rankin

    Prosthetics Manager

    Our newest addition to the team, Clare joined A-Line in March 2014. After qualifying in 1999 with a B-Tech diploma of Sciences, Clare has gained a wealth of experience providing bespoke prosthodontic solutions. She is an experienced Departmental Manager and we are glad to have her on board as our Prosthodontic Manager.

  • Andrew Graham

    Senior Dental Technician

    Dip.CDT (RCSEng). RCDT. RDT.

    Andrew has been a Dental Technician for over 20 years and brings all of that experience to the prosthodontic team. He has recently qualified as a CDT and his special interest lies in flexible Valplast dentures.