PMID: 2098339Sep 1, 1990Paper

Investigation into the apical leakage of root-filled teeth prepared for a post crown

International Endodontic Journal
A Ewart, W P Saunders

Abstract

The effect of post canal preparation on the apical seal of endodontically treated teeth was studied in vitro. Single-rooted teeth with mature apices were prepared chemomechanically and obturated with gutta-percha and sealer using one of four techniques: cold lateral condensation, thermo-mechanical compaction, thermomechanical compaction as an adjunct to lateral condensation (hybrid technique), or lateral condensation using an electrically heated spreader, the Endotec. Forty-eight hours after obturation each group of 15 teeth was prepared to accept a post crown. Five teeth in each group were left unprepared as controls. The extent of apical leakage was then determined using a dye, Indian ink, and a clearing technique that rendered the teeth transparent. Linear measurement of the dye penetration was recorded. The results showed that, for each method of obturation, there were no statistically significant differences between the teeth prepared for a post and the unprepared controls. There were no significant differences in leakage between the different groups that had been prepared for a post, or between the control groups.

References

Mar 1, 1978·Oral Surgery, Oral Medicine, and Oral Pathology·F J Schnell
Nov 1, 1989·Journal of Endodontics·L S SpångbergB Yongbum Cha
Jul 1, 1989·International Endodontic Journal·E M Saunders, W P Saunders
Sep 1, 1987·International Endodontic Journal·I W Jeffrey, W P Saunders
Jan 1, 1985·Journal of Endodontics·J A Suchina, J R Ludington
Nov 1, 1969·Oral Surgery, Oral Medicine, and Oral Pathology·R L Neagley
Nov 1, 1983·The Journal of Prosthetic Dentistry·L R Camp, M J Todd
Sep 1, 1984·Journal of Endodontics·S Madison, K L Zakariasen
Dec 1, 1983·Oral Surgery, Oral Medicine, and Oral Pathology·M TaggerA Katz
Dec 1, 1982·Journal of Endodontics·A C GoerigH H Schultz
Jan 1, 1980·Journal of Endodontics·D RobertsonE Brewer
Feb 1, 1981·Journal of Endodontics·R S Bourgeois, R R Lemon
Jul 1, 1981·Journal of Endodontics·E H Kwan, G W Harrington

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Citations

Apr 26, 2005·British Dental Journal·D N J RickettsA J Higgins
Jan 1, 1997·International Endodontic Journal·S J Hayes, P M Dummer
Jun 1, 1991·Endodontics & Dental Traumatology·C M Oliver, P V Abbott
Jan 1, 1993·International Endodontic Journal·M J DeCleen
Jan 1, 1993·International Endodontic Journal·M K Wu, P R Wesselink

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