Restorative Dentistry & Endodontics

Case Report

Fiber-reinforced composite post removal using guided endodontics: a case report: Changgi Cho, Hyo Jin Jo, Jung-Hong Ha; Restor Dent Endod 2021;46(4):e50. Published online September 23, 2021; DOI: https://doi.org/10.5395/rde.2021.46.e50

Although several techniques have been proposed to remove fiber-reinforced composite (FRC) post, no safe and efficient technique has been established. Recently, a guided endodontics technique has been introduced in cases of pulp canal obliteration. This study describes 2 cases of FRC post removal from maxillary anterior teeth using this guided endodontics technique with a dental operating microscope. Optically scanned data set from plaster cast model was superimposed with the data set of cone-beam computed tomography. By implant planning software, the path of a guide drill was selected. Based on them, a customized stent was fabricated and utilized to remove the FRC post. Employing guided endodontics, the FRC post was removed quickly and safely with minimizing the loss of the remaining tooth structure. The guided endodontics was a useful option for FRC post removal.

Citations

Citations to this article as recorded by

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Research Article

Effect of ultrasonic tip designs on intraradicular post removal: Anny Carine Barros Aguiar, Daniely Amorim de Meireles, André Augusto Franco Marques, Emílio Carlos Sponchiado Júnior, Angela Delfina Bitencourt Garrido, Lucas da Fonseca Roberti Garcia; Restor Dent Endod 2014;39(4):265-269. Published online July 17, 2014; DOI: https://doi.org/10.5395/rde.2014.39.4.265

Abstract PDF PubReader ePub

Objectives

To evaluate the effect of different ultrasonic tip designs on intraradicular post removal.

Materials and Methods

The crowns of forty human canine teeth were removed, and after biomechanical preparation and filling, the roots were embedded in acrylic resin blocks. The post spaces were made, and root canal molding was performed with self-cured acrylic resin. After casting (Cu-Al), the posts were cemented with zinc phosphate cement. The specimens were randomly separated into 4 groups (n = 10), as follows: G1 - no ultrasonic vibration (control); G2 - ultrasonic vibration using an elongated cylindrical-shaped and active rounded tip; G3 - ultrasonic vibration with a flattened convex and linear active tip; G4 - ultrasonic vibration with active semicircular tapered tip. Ultrasonic vibration was applied for 15 seconds on each post surface and tensile test was performed in a Universal Testing Machine (Instron 4444 - 1 mm/min).

Results

G4 presented the highest mean values, however, with no statistically significant difference in comparison to G3 (P > 0.05). G2 presented the lowest mean values with statistically significant difference to G3 and G4 (P < 0.05).

Conclusions

Ultrasonic vibration with elongated cylindrical-shaped and active rounded tip was most effective in reducing force required for intraradicular post removal.

Citations

Citations to this article as recorded by

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Izabela Araujo Aguiar Graça, Emílio Carlos Sponchiado Júnior, André Augusto Franco Marques, Leandro de Moura Martins, Ângela Delfina Bittencourt Garrido
Journal of Endodontics.2017; 43(8): 1350. CrossRef
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L. D. Vejsgejm, T. N. Gomenjuk
Journal of Volgograd State Medical University.2017; 14(4): 37. CrossRef
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Jojo Kottoor, Denzil Albuquerque
Restorative Dentistry & Endodontics.2016; 41(1): 80. CrossRef

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