Abstract
Objective: To determine the quality of impressions for crown and bridge work made in general dental practice.
Design and Setting: All impressions for crown and bridge work which had been sent to four commercial dental laboratories in the UK were assessed by two examiners, each laboratory being visited on two occasions.
Materials and Methods: 290 cases which had been received by the laboratories on the days of the visits were assessed for a number of factors related to quality. There was no selection or rejection--all impressions received were examined.
Results: Flexible plastic trays were used for the majority of working impressions for crown and bridge work in general dental practice (72%), many had been re-used (> 13%), defects in the recording of the prepared teeth were common, and cross infection control was not routine.
Conclusions: Quality standards for impressions for crown and bridge work in general dental practice in the UK are a cause for concern if the sample of cases seen in this study is typical
Similar content being viewed by others
Article PDF
Rights and permissions
About this article
Cite this article
Winstanley, R., Carrotte, P. & Johnson, A. The quality of impressions for crowns and bridges received at commercial dental laboratories. Br Dent J 183, 209–213 (1997). https://doi.org/10.1038/sj.bdj.4809468
Published:
Issue Date:
DOI: https://doi.org/10.1038/sj.bdj.4809468
This article is cited by
-
Accuracy of intraoral scanning versus conventional impressions for partial edentulous patients with maxillary defects
Scientific Reports (2023)
-
Evaluation of the quality of fixed prosthesis impressions in private laboratories in a sample from Yemen
BMC Oral Health (2020)
-
Understanding self-assessment in undergraduate dental education
British Dental Journal (2018)
-
Communication methods and production techniques in fixed prosthesis fabrication: a UK based survey. Part 2: Production techniques
British Dental Journal (2014)
-
Clinical success rates for polyether crown impressions when mixed dynamically and statically
Clinical Oral Investigations (2012)