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

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 underw...

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Detalles Bibliográficos
Autores principales: Torres-Lagares, Daniel, Rodríguez-Martos, Ramón, Castellanos-Cosano, Lizett, Yáñez-Vico, Rosa, Segura-Egea, Juan J., Gutiérrez-Pérez, José L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medicina Oral S.L. 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3668887/
https://www.ncbi.nlm.nih.gov/pubmed/23524419
http://dx.doi.org/10.4317/medoral.18440
Descripción
Sumario: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. Key words:Confocal microscopy, root-end cavity, surgical root canal treatment, ultrasonic tips.