A study of the quality of impressions for anterior crowns received at a commercial laboratory.

Abstract:

:A report is presented of a study which was carried out to investigate the standard of impressions for anterior crowns received at a commercial dental laboratory in Great Britain. Aspects examined were the type of tray and its suitability to the impression technique used, fixation of the impression to the tray, the method of storage in transit, contamination, defects on the preparations and defects elsewhere affecting the occlusion. The quality of the actual preparation was not examined in this study. Similar details were noted for the opposing impression. Of the 50 cases examined only 12 were recorded as totally satisfactory, with 26 cases being recorded as not being of an acceptable standard for the construction of an adequate restoration. The results are presented with the conclusion that in this survey the general quality of impression was unacceptable.

journal_name

Br Dent J

journal_title

British dental journal

authors

Carrotte PV,Winstanley RB,Green JR

doi

10.1038/sj.bdj.4808129

subject

Has Abstract

pub_date

1993-04-10 00:00:00

pages

235-40

issue

7

eissn

0007-0610

issn

1476-5373

journal_volume

174

pub_type

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