PMID: 9545937May 1, 1997Paper

Evaluation for cracks associated with ultrasonic root-end preparation of gutta-percha filled canals

Journal of Endodontics
K L BelingJ C Baumgartner

Abstract

Many clinicians use ultrasonics for root-end preparations. The purpose of this study was to evaluate resected root-end surfaces of bilaterally matched human teeth for cracks before and after ultrasonic root-end preparation. Twenty matched pairs of extracted single rooted teeth were divided into two experimental groups. In group 1, root-end resection was performed on uninstrumented teeth. In group 2, root-end resection was performed after the canals were instrumented and filled with gutta-percha. All teeth in both groups received root-end preparations using ultrasonic instrumentation at low power. Two examiners evaluated the root-ends after root-end resection and again after root-end preparation using zoom magnification of 20x to 63x. The number, types, and location of cracks were mapped. There were no significant differences when gutta-percha filled roots were compared to uninstrumented roots with regard to the number or type of cracks after root-end resection or root-end preparation. In addition, there were no significant differences in the number or type of cracks following root resection and ultrasonic root-end preparation when compared to teeth with root resection alone.

Citations

Aug 27, 2004·Journal of Endodontics·Emin EsenGülşah Seydaoğlu
Dec 6, 2019·Journal of Conservative Dentistry : JCD·Naina SachdevaPadmanabh Jha
Jan 10, 2017·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Seda AydemirYasemin Ylıdıran
Apr 11, 2006·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·James A Wallace

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