DOI
https://doi.org/10.25772/SARF-GR42
Defense Date
2002
Document Type
Thesis
Degree Name
Master of Science
Department
Endodontics
First Advisor
Gary R. Hartwell
Abstract
This study determined if any of four endodontic solutions would have a softening effect on resorcinol-formalin paste and if there were any differences in the solvent action between these solutions. Resorcinol, formalin and zinc oxide were mixed and allowed to set for 30 days. The solutions tested were 0.9% sodium chloride, 5.25% NaOCl, chloroform and Endosolv R. Seven samples per solution were tested and an additional seven samples served as controls. Each sample was saturated with one of the solutions and the depth of penetration was tested at 1 min, 2 min, 5 min, 10 min and 20 min using a dial strain gauge. At 2 minutes, NaOCl and sodium chloride had significantly greater penetration than the other groups (p-values < 0.0010). Sodium hypochlorite was superior to all other groups after 5 minutes. This study showed that both sodium chloride and NaOCl exhibited a significant softening effect within two minutes.
Rights
© The Author
Is Part Of
VCU University Archives
Is Part Of
VCU Theses and Dissertations
Date of Submission
10-17-2018
Comments
Scanned, with permission from the author, from the original print version, which resides in University Archives.