Comparison of the efficacy of three different supplementary cleaning protocols in root-filled teeth with a bioceramic sealer after retreatment—a micro-computed tomographic study

Sinsareekul, Chanakarn; Hiran-us, Sirawut

doi:10.1007/s00784-021-04320-w

Cited by 14 publications

(12 citation statements)

References 42 publications

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“…Al Meida et al concluded that Reciproc Blue file (VDW, Munich, Germany) did not induce dentinal defects when removing a Bioceramic sealer. Some authors suggested the use of ultrasonics, XP Endo Finisher, and Photon-initiated photoacoustic streaming (PIPS) to raise the efficiency of sealer removal, whereas the use of sonic irrigation has not yet been evaluated in the retreatability of a Bioceramic sealer [ 30 , 33 ]. It would be interesting to conduct a series of in vitro and clinical randomized studies to develop a feasible and reproducible protocol for bioceramic retreatment.…”

Section: Discussionmentioning

confidence: 99%

Effectiveness of the REvision System and Sonic Irrigation in the Removal of Root Canal Filling Material from Oval Canals: An In Vitro Study

et al. 2022

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This study aimed to evaluate the effectiveness of the Endostar REvision system (Poldent, Warsaw, Poland) in the removal of filling materials from oval root canals using sonic irrigation as an additional cleaning method. Thirty human-extracted mandibular premolars with oval canals were prepared using the ProTaper Universal system (Dentsply Maillefer, Ballaigues, Switzerland) up to instrument F1 (20/.07), and then filled by the continuous wave vertical compaction technique using pulp canal sealer EWT (Sybron Dental Specialties, Orange, CA, USA). The teeth were randomly divided into two groups (n = 15) according to the instrumentation system and the additional cleaning method, as follows: REvision (30/.08, 25/.06) with EQ-S sonic activation (Meta Biomed, Chungcheongbuk-do, Korea), REvision (30/.08, 25/.06) without additional activation. All specimens were sectioned longitudinally at 3 and 7 mm from the apex, and analyzed using digital microscopy (KEYENCE, Osaka, Japan) to measure the total area of the residual obturation materials, followed by SEM analysis. The data on the percentage of remaining filling material were analyzed by Kruskal–Wallis one-way Analysis of Variance on ranks. None of the retreatment protocols completely removed the filling material from the root canals (p > 0.05); the retreatment technique using sonic activation showed statistically less residual filling materials than the retreatment technique using irrigants without activation at the coronal third (p < 0.05), whilst no significant difference was found between both tested groups at the apical and middle thirds (p > 0.05). The REvision system showed promising results in the removal of filling materials from oval canals.

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Section: Discussionmentioning

confidence: 99%

Effectiveness of the REvision System and Sonic Irrigation in the Removal of Root Canal Filling Material from Oval Canals: An In Vitro Study

et al. 2022

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“…Recently, adjunct methods have been suggested to enhance the efficacy of removal of BC sealer, such as the use of XP-endo finisher instruments, ultrasonic-activated irrigation, and photoacoustic streaming [9][10][11][12]. Although limited to the straight area of the canal, ultrasonic tips are an excellent adjunct technique in endodontic retreatment, particularly in cases with BC sealer [13].…”

Section: Introductionmentioning

confidence: 99%

“…Although limited to the straight area of the canal, ultrasonic tips are an excellent adjunct technique in endodontic retreatment, particularly in cases with BC sealer [ 13 ]. Ultrasonic-activated irrigation has been found to significantly increase the efficacy of sealant removal [ 10 , 11 ]. In general, ultrasonic energy has been effectively employed to clean root canals from filling materials with and without BC sealer [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Dentinal Microcracks following Diode Laser- and Ultrasonic-Activated Removal of Bioceramic Material during Root Canal Retreatment

et al. 2022

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This study is aimed at evaluating the use of microcomputed tomography (micro-CT) analysis and the dentinal microcrack formation following retreatment of bioceramic sealer employing adjunct laser-activated irrigation and ultrasonic-activated irrigation. Thirty sound human single-canal teeth ( n = 30 ) obturated using the single-cone technique with bioceramic sealer were retreated using nickel-titanium (NiTi) rotary files. The sample was randomly divided into three equal groups: group 1, the control group, was not subjected to further treatment; group 2 underwent ultrasonic activation of irrigants; group 3 underwent active irrigation with a diode laser (980 nm wavelength). Using micro-CT, the teeth were scanned before and after retreatment protocols. Two calibrated experienced observers viewed the cross-sectional images and calculated the number of dentinal defects. The presence of any crack or craze line on the external root surface or internal canal wall was counted. Data were analyzed using Friedman’s two-way analysis of variance and Fisher’s exact test. Statistical significance was set at p < 0.05 . A significant increase occurred in the number of cracks post retreatment protocols, specifically in the coronal and middle canal thirds, compared to pre- and postinstrumentation ( p = 0.0001 ). However, ultrasonic- or laser-activated irrigation did not result in a significant increase in the number of cracks ( p = 0.345 ). NiTi rotary root canal retreatment was associated with a significant increase in dentinal microcracks. However, employing ultrasonic- or laser-activated irrigation as adjunct retreatment techniques did not reveal a significant increase in dentinal microcracks within the roots.

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Section: Introductionmentioning

confidence: 99%

“…The removal of filling remnants left after conventional chemo-mechanical retreatment can be improved by activated irrigation during the final irrigation protocol [ 4 , 5 , 13 ]. Ultrasonically activated irrigation (UAI) has been proven to be a very effective supplementary technique after the retreatment of roots initially filled with gutta-percha and epoxy resin-based or bioceramic-based materials [ 4 , 13 , 14 ]. However, in some studies, its effectiveness was compromised when used in complex canal anatomies or smaller root canals compared to instruments that adapt to the intracanal anatomy, such as the XP-endo Finisher [ 15 , 16 ] and laser-activated irrigation (LAI) [ 4 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

The Efficacy of Er:YAG Laser-Activated Shock Wave-Enhanced Emission Photoacoustic Streaming Compared to Ultrasonically Activated Irrigation and Needle Irrigation in the Removal of Bioceramic Filling Remnants from Oval Root Canals—An Ex Vivo Study

et al. 2022

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The removal of filling material is important for successful root canal retreatment. The aim of the study was to compare the efficiency of two activated irrigation techniques, the shock wave-enhanced emission photoacoustic streaming (SWEEPS) mode of the Er:YAG laser and ultrasonically activated irrigation (UAI) and a conventional syringe-needle technique (SNI), in the removal of bioceramic sealer/gutta-percha during conventional retreatment in oval root canals. The study sample consisted of distal root canals of 42 extracted human mandibular molars, which were prepared using a ProTaper Next system up to size 40/0.06 and filled with bioceramic sealer using a single-cone obturation technique. The teeth were then re-treated with a Reciproc Blue RB40 file and 3% sodium hypochlorite solution. The prepared teeth were randomly divided into three groups (n = 14 per group) and subjected to one of the three irrigation methods. Micro-CT scans were performed at different stages to assess the amount of filling material after each retreatment phase. The results of the study showed that all the tested irrigation techniques reduced a statistically significant amount of the remnant filling material at retreatment (p < 0.05), and there were no statistically significant differences in efficacy between the three methods. All tested techniques had similar efficacy in the removal of the remaining filling remnants.

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Comparison of the efficacy of three different supplementary cleaning protocols in root-filled teeth with a bioceramic sealer after retreatment—a micro-computed tomographic study

Cited by 14 publications

References 42 publications

Effectiveness of the REvision System and Sonic Irrigation in the Removal of Root Canal Filling Material from Oval Canals: An In Vitro Study

Effectiveness of the REvision System and Sonic Irrigation in the Removal of Root Canal Filling Material from Oval Canals: An In Vitro Study

Evaluation of Dentinal Microcracks following Diode Laser- and Ultrasonic-Activated Removal of Bioceramic Material during Root Canal Retreatment

The Efficacy of Er:YAG Laser-Activated Shock Wave-Enhanced Emission Photoacoustic Streaming Compared to Ultrasonically Activated Irrigation and Needle Irrigation in the Removal of Bioceramic Filling Remnants from Oval Root Canals—An Ex Vivo Study

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