European Journal of Prosthodontics and Restorative Dentistry

cover art

Cover Date:
June 2013
Print ISSN:
0965-7452
Vol:
21
Issue:
2

The Quality of Impressions for Crowns and Bridges: An Assessment of the Work Received at Three Commercial Dental Laboratories. Assessing the Quality of the Impressions of Prepared Teeth.

doi:10.1922/EJPRD_1173Storey05

Abstract - The literature is limited in studies directly assessing the quality of impressions for crowns and bridges in the UK. The aim of the study was to assess the quality of impressions for conventional crown and bridgework received by commercial dental laboratories. Three dental laboratories were visited over a 3-month period. All impressions for conventional crowns and bridges that arrived on the days of the visits were examined prior to any laboratory processing. A total of 206 impression cases were examined and assessed against criteria laid out in a custom-designed assessment form. Defects were commonly found in the recording of prepared teeth. Overall, 44.2% of impression cases were unsatisfactory. NHS impressions were more than twice as likely to be unsatisfactory compared to private impressions. If the results of this survey are typical then the general quality of impressions for fixed crown and bridgework is unacceptable. This is particularly true for work completed under the NHS contract.

KEYWORDS: Impression, Crown, Quality

Article Price
£15.00
Institution Article Price
£
Page Start
53
Page End
57
Authors
D. Storey, T.J. Coward

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