PMID: 11312464Apr 20, 2001Paper

An in vitro experiment on the effect of an attempt to create an apical matrix during root canal preparation on coronal leakage and material extrusion

Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics
A Kast'ákováP R Wesselink

Abstract

A common approach to creating an apical matrix (apical stop) in the apical dentin is to enlarge the root canal to 3 sizes greater than that of the first file that binds at the working length. The aim of this study was to test the hypothesis that this procedure will reduce the amount of material extruded and the leakage along the apical root fillings. The canals of half of 120 maxillary and mandibular canines were prepared to the apical foramen through use of the serial shaping technique; the apical matrix creation procedure was not used. Each of the other 60 canals was prepared to 1 mm short of the apical foramen, and the canal was enlarged to at least 3 sizes greater than that of the first binding file to create an apical matrix. All the canals prepared with and all the canals prepared without the apical matrix creation procedure were obturated with laterally or vertically compacted cold or warm gutta-percha. In the leakage test, after post space preparation, the amount of fluid transport along the apical root fillings was measured. In the material extrusion test, the number of teeth with gutta-percha extrusion was recorded and the weight of the apically extruded materials was measured. In both the leakage and the extrusion te...Continue Reading

References

Jul 1, 1993·International Endodontic Journal·M K WuW R Moorer
May 24, 1997·British Dental Journal·W P SaundersE Cruickshank
Oct 1, 1996·Endodontics & Dental Traumatology·E Mandel, C Bourguignon-Adelle
Jun 14, 2000·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·M K WuP R Wesselink
Feb 24, 2001·Endodontics & Dental Traumatology·B FanP R Wesselink
Sep 15, 2001·International Endodontic Journal·M K WuP R Wesselink

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Citations

Jun 27, 2014·European Journal of Dentistry·K Tolga CeyhanliTimur Kose
Dec 4, 2003·International Endodontic Journal·W HübscherO A Peters
Jun 10, 2011·Journal of Applied Oral Science : Revista FOB·Özgür GençGuven Kayaoglu
May 3, 2002·International Endodontic Journal·M-K WuP R Wesselink

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