Send to:

Choose Destination
See comment in PubMed Commons below
Br Dent J. 2005 Jan 8;198(1):17-20.

Quality of written prescriptions and master impressions for fixed and removable prosthodontics: a comparative study.

Author information

  • 1Department of Restorative Dentistry, University Dental School and Hospital, Wilton, Cork, Ireland.

Erratum in

  • Br Dent J. 2005 Feb 26;198(4):197. Lynch, D [corrected to Lynch, CD].



Various ethical and legal guidelines require dental practitioners to adequately design, prescribe and fabricate good quality prostheses. The purpose of this investigation was to examine the quality of written instructions and choice of impression trays and materials for both fixed and removable prosthodontics in Ireland and the United Kingdom.


A pre-piloted questionnaire was distributed to a number of large commercial laboratories geographically distributed throughout the United Kingdom and Ireland. Information was sought relating to the quality of written instructions and use of impression trays and materials for three forms of 'dental precision casting' - cobalt-chromium based removable partial dentures, full veneer porcelain-fused-to-metal crowns, and conventional fixed bridges.


Six hundred questionnaires were distributed, and information was received relating to 447 items of prosthodontic treatment (response rate= 75%). Ninety-five per cent of cases were privately funded. Using pre-determined grading criteria, poor or no written instructions were provided in one-half of cases examined. One-half of master impressions were made using a plastic stock tray. The technician felt that material had been appropriately disinfected prior to being sent to the laboratory in only 57% of cases.


The written instructions and master impressions examined in this study failed to meet the relevant ethical and legal guidelines in approximately 50% of cases.

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Nature Publishing Group
    Loading ...
    Write to the Help Desk