| Abstract | This study investigated the seal created by cold burnishing the gutta-percha exposed after apical root resection of endodontically treated teeth. Sixty single-rooted extracted human teeth with a single straight canal were divided into four experimental groups of 15 teeth each. In two of the experimental groups the canals were instrumented and obturated well with laterally condensed gutta-percha and sealer. The remaining two groups were instrumented and poorly obturated with laterally condensed gutta-percha and sealer. The apical 2 mm of all the teeth were then resected and the effect of cold burnishing the exposed gutta-percha was investigated using a linear dye penetration technique. Under the condition of this study, cold burnishing gutta-percha after apical root resection of a well-obturated root canal resulted in a poorer apical seal than if no burnishing were performed. Cold burnishing the exposed gutta-percha after apical root resection of poorly obturated root canals improved the apical seal as compared with nonburnished poorly obturated canals. |
| Authors | S G Minnich, G R Hartwell, F R Portell |
| Journal | Journal of endodontics
(J Endod)
Vol. 15
Issue 5
Pg. 204-9
(May 1989)
ISSN: 0099-2399 UNITED STATES |
| PMID | 2607291
(Publication Type: Journal Article)
|
| Chemical References |
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| Topics |
- Dental Leakage
- Gutta-Percha
- Humans
- Root Canal Obturation
(methods)
|
