PMID: 7036032Feb 1, 1982Paper

A comparison of methods used in root canal sealability studies

Oral Surgery, Oral Medicine, and Oral Pathology
I R MatloffA Tabibi

Abstract

The purpose of the study was to compare several methods that have been used to assess marginal leakage of root canal fillings. Sixty-three extracted, single-rooted teeth were instrumented and filled in a standardized manner. Teeth were randomly divided into groups of twenty and exposed to solutions containing methylene blue dye, calcium-45, carbon-14-labeled urea, and iodine-125-labeled albumin for 48 hours to compare the degree of leakage indicated by each technique. Methylene blue dye was found to penetrate farther up the canal than any of the isotope tracers. Carbon-14-labeled urea penetrated farther than the calcium-45- or iodine-125-labeled albumin. The mean volume of solution penetrating the teeth was exceedingly small (0.0011 ml) and probably unimportant physiologically.

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Citations

Jul 16, 2010·Wiener medizinische Wochenschrift·Lumnije KqikuPeter Städtler
May 13, 1999·Journal of Endodontics·Y HaïkelC Allemann
Mar 26, 2003·International Endodontic Journal·F Kont CobankaraD H Pashley
Jan 24, 2002·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Dominique RouxMarwan Saade
Jul 27, 2002·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Sanjay Tewari, Shikha Tewari
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