Confocal Microscopy: a Valid Approach to Evaluate the Three-dimensional Characteristics of Root-end Cavities

Overview

Journal Med Oral Patol Oral Cir Bucal

Specialty Dentistry

Date 2013 Mar 26

PMID 23524419

Authors

Daniel Torres-Lagares

Ramon Rodriguez-Martos

Lizett Castellanos-Cosano

Rosa Yanez-Vico

Juan-Jose Segura-Egea

Jose-Luis Gutierrez-Perez

Affiliations

Soon will be listed here.

Abstract

Objective: To analyze, using confocal microscope, the three-dimensional characteristics of the root-end cavity preparations completed in root apices of extracted teeth determining their area, perimeter, circularity and cavo-surface angle.

Study Design: Thirty-two single-rooted extracted teeth underwent endodontic treatment and apical resection. Root-end cavities were prepared according to 4 protocols, as follows: Group 1, stainless steel ultrasonic tips (SST) at 33 KHz power; Group 2, SST at 30 KHz power; Group 3, diamond-coated ultrasonic tips (DCT) at 30 KHz power; and Group 4, DCT at 33 KHz power. Finally, root-end cavity was evaluated using a confocal microscope, recording its area, perimeter, circularity and cavo-surface angle.

Results: The largest cavity perimeter was found in the Group 2 (4.8 ± 1.6 mm) (p > 0.05). Root-end cavities performed using SST showed larger areas than those performed with DCT (p = 0.03). The power of vibration or the tip type did not show correlation with the perimeter, circularity and cavo-surface angle of the root-end cavity (p > 0.05).

Conclusions: Confocal microscopy is a useful approach to study the three-dimensional characteristics of the root-end cavity.

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