Confocal microscopy: a valid approach to evaluate the three-dimensional characteristics of root-end cavities

• Autores: Daniel Torres Lagares, Ramón Rodríguez Martos, Lizett Castellanos Cosano, Rosa María Yáñez Vico, Juan J. Segura Egea, José Luis Gutiérrez Pérez
• Localización: Medicina oral, patología oral y cirugía bucal. Ed. inglesa, ISSN-e 1698-6946, Vol. 18, Nº. 3, 2013, págs. 542-546
• Idioma: inglés
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• Resumen

  • 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: Group1, 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