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Accuracy and consistency of electronic root canal length determination with electrically isolating rubber stoppers
Author(s) -
Kowollik Susanne,
Sonntag David
Publication year - 2019
Publication title -
australian endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.703
H-Index - 34
eISSN - 1747-4477
pISSN - 1329-1947
DOI - 10.1111/aej.12264
Subject(s) - coronal plane , apex (geometry) , silicone rubber , root canal , apical foramen , amalgam (chemistry) , consistency (knowledge bases) , dentistry , silicone , materials science , foramen , significant difference , orthodontics , composite material , mathematics , medicine , chemistry , computer science , anatomy , artificial intelligence , statistics , electrode
The aim of this study was to investigate the influence of an isolating silicone stopper on the measuring accuracy and display consistency of three electrometric apex locators. The length of the canal to the major foramen was determined electrometrically using an ISO size 10 file in 20 extracted teeth each with natural crowns (Group I), amalgam fillings (Group II ) or base‐metal crowns (Group III ), The measurements were performed with isolating or conventional silicone stoppers using three different apex locators with a four‐level scale consistency rating. The use of isolating stoppers resulted in a more consistent display than with conventional stoppers, independent of the presence or type of coronal restoration ( P = 0.017). Across all coronal restorations, the position of the major foramen could be determined to within ± 0.5 mm without significant differences ( P = 0.79) using conventional and isolating stoppers. The use of modified isolating stoppers provides a significant increase in display consistency.