| Dimensional variability of nonstandardized greater taper finger spreaders with matching gutta-percha points. | |
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MedLine Citation:
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PMID: 11307377 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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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 x (+/- 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 D1. The standard deviations at D11 were greater than at D1, 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. |
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Authors:
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B Briseño Marroquín; D Wolter; B Willershausen-Zönnchen |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: International endodontic journal Volume: 34 ISSN: 0143-2885 ISO Abbreviation: Int Endod J Publication Date: 2001 Jan |
Date Detail:
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Created Date: 2001-04-18 Completed Date: 2001-05-17 Revised Date: 2008-08-07 |
Medline Journal Info:
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Nlm Unique ID: 8004996 Medline TA: Int Endod J Country: England |
Other Details:
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Languages: eng Pagination: 23-8 Citation Subset: D |
Affiliation:
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Department of Conservative Dentistry, Johannes Gutenberg University, Mainz, Germany. briseno@mail.uni-mainz.de |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Equipment Design Gutta-Percha / chemistry*, standards Humans Root Canal Filling Materials / chemistry*, standards Root Canal Obturation / instrumentation*, standards Statistics as Topic Surface Properties |
| Chemical | |
Reg. No./Substance:
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0/Root Canal Filling Materials; 9000-32-2/Gutta-Percha |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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