Effectiveness of XP‐endo Finisher and XP‐endo Finisher R in removing root filling remnants: a micro‐CT study

Silva, Emmanuel João Nogueira Leal; Belladonna, Felipe Gonçalves; Zuolo, A. S.; Rodrigues, Evaldo Almeida; Ehrhardt, Iracema Cabral; Souza, Erick Miranda; De‐Deus, Gustavo

doi:10.1111/iej.12788

Cited by 121 publications

(134 citation statements)

References 30 publications

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“…This reduction was, however, lower than that reported in a previous study (60%) (Silva et al . ) with the difference probably being related to the more complex anatomy of the isthmus‐containing roots used in the present study. Once again, the use of the solvent with the XP‐endo Finisher R did not significantly affect filling material removal from the apical third of the root canal system.…”

Section: Discussionmentioning

confidence: 76%

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Influence of solvent and a supplementary step with a finishing instrument on filling material removal from canals connected by an isthmus

et al. 2018

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Aim To evaluate the effectiveness of a solvent (eucalyptol) in improving filling material removal from canals connected by isthmuses, and the additional cleaning effect of a finishing instrument. Methodology The mesial canals from 32 mandibular molars (Vertucci's type II morphology) were instrumented and filled with the single‐cone technique using Reciproc R25 gutta‐percha points (VDW, Munich, Germany) combined with Sealer 26 (Dentsply, Petrópolis, RJ, Brazil). Each root was then subjected to retreatment using the Mtwo instrument system (VDW), with or without a solvent (n = 16 per group). The volume of filling material in the canals was assessed by micro‐computed tomographic (micro‐CT) scans taken before and after retreatment. Canals with remnants of filling material received a supplementary procedure with the XP‐endo Finisher R instrument (FKG Dentaire, La Chaux‐de‐Fonds, Switzerland), with or without eucalyptol, and another micro‐CT scan was taken. All retreatment procedures were performed inside a cabinet under a controlled temperature (37 °C). Filling material removal was evaluated in the 5‐mm apical canal system for the canal+isthmus space or the isthmus alone. Statistical analyses were performed to compare the removal of filling material with and without eucalyptol, and after a supplementary approach with XP‐endo Finisher R. The level of significance was set at 5% for all statistical tests (P < 0.05). Results The amount of filling material removed from the canal+isthmus with Mtwo instruments was 83.2% when no solvent was used and 83.8% using the solvent (P > 0.05). When the isthmus area was evaluated separately, most specimens were associated with a reduction in the filling material, with no significant difference between the groups with or without using a solvent (P > 0.05). The supplementary step with XP‐endo Finisher R significantly improved removal of filling material from both canal and isthmus area (P < 0.05), regardless of the use of a solvent (P > 0.05). Conclusion The use of eucalyptol did not improve filling material removal from Vertucci's type II molar mesial canals and isthmuses. XP‐endo Finisher R significantly enhanced removal of filling material from the canals and isthmuses.

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Section: Discussionmentioning

confidence: 76%

“…Early reports have revealed a significant reduction of gutta‐percha remnants when the XP‐endo Finisher R was used in the retreatment of single‐rooted teeth (Silva et al . ). Considering its lateral action, it is hypothesized that this instrument could improve filling material removal from the isthmus area.…”

Section: Introductionmentioning

confidence: 97%

Influence of solvent and a supplementary step with a finishing instrument on filling material removal from canals connected by an isthmus

et al. 2018

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“…Taken together, these findings are in line with a study that reported that XP‐endo Finisher and XP‐endo Finisher R instruments were equally effective in removing filling remnants (Silva et al . ).…”

Section: Discussionmentioning

confidence: 97%

“…The only study published so far evaluating the use of XP‐endo Finisher R during retreatment reported that it was effective in removing residual filling material from oval‐shaped canals and had comparable results to its counterpart used for treatment (XP‐endo Finisher) (Silva et al . ).…”

Section: Introductionmentioning

confidence: 97%

Effects of preparation with the Self‐Adjusting File, TRUShape and XP‐endo Shaper systems, and a supplementary step with XP‐endo Finisher R on filling material removal during retreatment of mandibular molar canals

et al. 2018

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Aim To compare the effects of three instrumentation systems, and a supplementary approach with a finishing instrument, on filling material removal during retreatment of mandibular molar canals. Methods Sixty mesial canals from mandibular molars (Vertucci's type IV anatomy) were instrumented, filled and subjected to retreatment. After initial removal of the root canal filling material using the D‐RaCe system, the canals were randomly distributed into three groups (n = 20) according to the instrument system used for preparation: the Self‐Adjusting File (SAF), TRUShape or XP‐endo Shaper. The filling material volume in the apical 5 mm of the canals was assessed by means of micro‐computed tomography (micro‐CT) before and after retreatment. All specimens with residual filling material were subjected to a supplementary approach with the XP‐endo Finisher R instrument and another micro‐CT scan was taken. Data on the volumes of filling material and incidence of total removal were compared between groups by the general linear model for paired data and the Fisher's exact test. The effects of the refinement step were evaluated by the Wilcoxon Signed Ranks test. Results The amount of removed material was 92.4%, 96.9% and 96.9% for the SAF, TRUShape and XP‐endo Shaper, respectively. There were no significant differences between them (P > 0.05). Canals were completely cleaned of filling material in 70% of the specimens for XP‐endo Shaper, 55% for SAF and 30% for TRUShape; the difference between XP‐endo Shaper and TRUShape was significant (P = 0.03). The supplementary step with the XP‐endo Finisher R instrument was associated with additional filling material removal of 38% (P < 0.001). Six more canals were rendered free of filling material after using this finishing instrument. Conclusions The tested systems were equally effective in removing the mass of filling material from the apical 5 mm of molar canals. The supplementary step with the XP‐endo Finisher R instrument enhanced filling material removal.

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“…This greater effectiveness of the XP‐endo ® Finisher is in agreement with other studies (Elnaghy et al , Keskin et al ). The change in the alloy pattern over the last 10 mm causes the instrument to touch the walls of the canals and IRR cavities without wear and debris formation (Turkaydin et al , Uygun et al , Silva et al ). The superior results of the EDDY ® group compared with the EndoActivator ® group may be due to their greater cavitation effect (Conde et al , Urban et al ).…”

Section: Discussionmentioning

confidence: 99%

Effectiveness of five instruments when removing calcium hydroxide paste from simulated internal root resorption cavities in extracted maxillary central incisors

et al. 2019

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Aim To evaluate the effectiveness of five instruments used for irrigant agitation during the removal of calcium hydroxide [Ca(OH)2] paste in simulated internal root resorption (IRR) cavities created in extracted maxillary central incisors. Methodology Seventy maxillary central incisors with a single canal were selected. The canals were accessed and instrumented with Reciproc R50, then the roots were split in the bucco‐lingual direction and the halves separated. Simulated IRR cavities were created, in both halves of the roots, 5 mm from the apex with a spherical bur. The specimens were reconstructed with cyanoacrylate glue and allocated into seven groups: negative control – no treatment; positive control – filled with Ca(OH)2 without performing any irrigation protocol; the other groups were divided according to the instrument used for irrigant agitation, namely: Ultrasonic, EndoActivator®, EDDY®, XP‐endo® Finisher and XP‐endo® Shaper. The specimens were cleaved and analysed using optical microscopy and scanning electron microscopy, to compare the Ca(OH)2 remnants between them. Then, the IRR cavities created by the burs were cleaned and subjected to a protocol of demineralization with 20% nitric acid, the roots reconstructed, and the irrigant agitation methods, as well as the microscopic analysis was repeated. Analysis of the images of Ca(OH)2 remaining in the simulated IRR cavities after irrigation was performed by two calibrated examiners based on a previously established scoring system. The data were statistically compared by Kruskal–Wallis test, Mann–Whitney U‐test and Wilcoxon tests, with the significance level set at 5%. Results There was a significant difference in the effectiveness of the instruments in relation to the cavity creation method (bur vs. bur/acid) and evaluation method (optical microscopy and scanning electron microscopy) (P < 0.05). The XP‐endo® Finisher and EDDY® groups were associated with significantly more effective removal of Ca(OH)2 when the IRR cavities were created using the acid protocol and analysed by scanning electron microscopy. Conclusion None of the instruments tested were able to completely remove the Ca(OH)2 paste from the simulated IRR cavities; however, the EDDY® and XP‐endo® Finisher removed more Ca(OH)2 in the bur/acid cavity creation method analysed by scanning electron microscopy.

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Effectiveness of XP‐endo Finisher and XP‐endo Finisher R in removing root filling remnants: a micro‐CT study

Cited by 121 publications

References 30 publications

Influence of solvent and a supplementary step with a finishing instrument on filling material removal from canals connected by an isthmus

Influence of solvent and a supplementary step with a finishing instrument on filling material removal from canals connected by an isthmus

Effects of preparation with the Self‐Adjusting File, TRUShape and XP‐endo Shaper systems, and a supplementary step with XP‐endo Finisher R on filling material removal during retreatment of mandibular molar canals

Effectiveness of five instruments when removing calcium hydroxide paste from simulated internal root resorption cavities in extracted maxillary central incisors

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