Retreatment efficacy of the Epiphany soft resin obturation system.
Published: 2006
Language: eng
Number of pages: 78
ISBN-13: 9780494210956
Description: Sixty roots had canals prepared to apical size 45, embedded in resin blocks and sectioned vertically. Digital micrographs of canal walls were captured. Roots were re-assembled and filled with Epiphany/Resilon (experimental) or gutta-percha/AH Plus (control). After 8 weeks, canals were retreated to size 45 with or without chloroform, and the time recorded. Roots were split, imaged, re-assembled, retreated to size 55, split and imaged. Root filling residue, traced in three canal levels, was expressed as percentage of canal surface. Residue percentage was greater (t-test, p&lt;0.01) in the experimental group than in the control. Most residue was in the apical third (ANOVA, p&lt;0.01). Chloroform and enlargement to size 55 decreased residue in both groups (t-test, p&lt;0.01). Retreatment time was longer in the experimental group (p&lt;0.05), and reduced by chloroform in both groups (p&lt;0.05). The Epiphany System was retreatable with and without chloroform, with lesser efficacy than gutta-percha and AH Plus sealer.
Notes: Source: Masters Abstracts International, Volume: 45-03, page: 1440.

Thesis (M.Sc.)--University of Toronto, 2006.

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