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Dimensional variability of nonstandardized greater taper finger spreaders with matching gutta‐percha points
Author(s) -
Briseño Marroquín B.,
Wolter D.,
WillershausenZönnchen B.
Publication year - 2001
Publication title -
international endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.988
H-Index - 119
eISSN - 1365-2591
pISSN - 0143-2885
DOI - 10.1046/j.1365-2591.2001.00344.x
Subject(s) - gutta percha , computer science , mathematics , dentistry , root canal , medicine
Aim The purpose of this research was to determine the compatibility and dimensional variability between nonstandardized gutta‐percha points and matching finger spreaders. Methodology The diameters of nonstandardized gutta‐percha points ( n = 15) and matching finger spreaders ( n = 15) from different manufacturers (Kerr, Dentsply Maillefer, Vereignigte Dentalwerke and Roeko) were determined and statistically analysed using a profile projector under a magnification of 50 × (±0.002 mm). Results The dimensions of the finger spreaders and gutta‐percha cones were inconsistent. Of the 29 groups of nonstandardized gutta‐percha cones evaluated, 22 had standard deviations larger than 0.020 at D 1 . The standard deviations at D 11 were greater than at D 1 , with the exception of those manufactured by Roeko. Overall, nonstandardized gutta‐percha cones made by VDW had the greatest dimensional consistency within each size group; the largest variations were seen in the Dentsply Maillefer gutta‐percha points. The 13 sizes of nonstandardized finger spreaders were more consistent. Conclusions The results of this study show that corresponding sizes of nonstandardized finger spreaders and gutta‐percha cones have statistically significant differences. There were large dimensional variations within sizes and discrepancies between the nominal size and actual size. Thus, these discrepancies may cause problems during root canal filling.