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Raj R A, Raju I, Varghese JG, Jeet Singh Birring O, Paul Yacob PJ, Chohan H. Comparative Evaluation of Debris Expulsion Beyond Apex During Re-root Canal Treatment by Utilizing Two Re-treatment Rotary Files and Two Reciprocating Files: An In-Vitro Study. Cureus 2024; 16:e56467. [PMID: 38638748 PMCID: PMC11025582 DOI: 10.7759/cureus.56467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 03/13/2024] [Indexed: 04/20/2024] Open
Abstract
AIM This study aimed to assess and compare debris quality expelled beyond the apex during re-treatment using two reciprocating and two re-treatment rotary files. MATERIALS AND METHODS A total of 80 healthy human mandibular premolars excised for orthodontic therapy were selected. Distilled water was used to sterilize the teeth before they were preserved. The canals were widened and coronal access was created so that the F2 ProTaper universal system could be used. For the obturation, we utilized gutta-percha cones and AH plus sealant. All samples were cone-beam computed tomography (CBCT) recorded. Teeth were separated into four groups (n=20); Group 1: ProTaper re-treatment, Group 2: Mtwo re-treatment, Group 3: WaveOne gold, and Group 4: Reciproc. The re-instrumented process included collecting the extruded debris in Eppendorf tubes and then drying it off by evaporating the distilled water. The weight of the tube with debris was subtracted from the weight of the tube without debris to get the dry debris weight. Post-retreatment CBCT was recorded for all samples. Mean apical debris extrusion values were obtained, after which necessary statistical analysis was obtained using SPSS Statistics, version 21 (IBM Corp., Armonk, NY) to obtain the results. A one-way analysis of variance (ANOVA) and the student t-test were utilized for statistical analysis to compare the different experimental groups. Post-hoc Bonferroni tests were used to compare several groups. RESULT No statistical difference (p>0.05) was identified in the filler material that was left over across all groups. The reciprocating files discharged more material compared with re-treatment file systems. CONCLUSION The Reciproc files expelled more waste than WaveOne gold, ProTaper re-treatment, and Mtwo re-treatment file systems. Reciprocating file systems showed better cleaning efficiency compared to the re-treatment file systems.
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Affiliation(s)
- Akhila Raj R
- Conservative Dentistry and Endodontics, Amrita School of Dentistry, Amrita Viswavidyapeetham, Kochi, IND
| | - Iswarya Raju
- Conservative Dentistry and Endodontics, The Muslim Educational Society (MES) Dental College, Malappuram, IND
| | - Joel G Varghese
- Conservative Dentistry and Endodontics, Educare Institute of Dental Sciences, Malappuram, IND
| | | | - P Jeason Paul Yacob
- Conservative Dentistry and Endodontics, Amrita School of Dentistry, Amrita Viswavidyapeetham, Kochi, IND
| | - Hitesh Chohan
- Restorative Dental Sciences, College of Dentistry, Jazan University, Jazan, SAU
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da Rosa AF, Fischer BV, Dias-Junior LCDL, Serique AVC, Bortoluzzi EA, Teixeira CDS, da Fonseca Roberti Garcia L. Effectiveness of different supplementary protocols for remaining filling material removal in endodontic reintervention: an integrative review. Odontology 2024; 112:51-73. [PMID: 37561273 DOI: 10.1007/s10266-023-00845-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 08/01/2023] [Indexed: 08/11/2023]
Abstract
The aim of this study was to perform an integrative review to identify the most effective supplementary protocols used after filling material (FM) removal and root canal reinstrumentation, during endodontic reintervention. The literature search was performed on the electronic databases PubMed and Latin American and Caribbean Health Sciences Literature (LILACS), using a combination of specific scientific descriptors. Selection criteria accepted articles published in English, Spanish and Portuguese languages, up to August 2021, involving in vitro and ex vivo studies. After applying the eligibility criteria, 46 articles were included for qualitative analysis. The tool for qualitative analysis of quasi-experimental studies of the Joanna Briggs Institute was used to determine the risk of bias of the included articles. The selected articles provided important data regarding the following supplementary protocols: sonic and ultrasonic activation of the irrigating solution; the use of ultrasonic inserts, XP-endo system instruments, and photon-induced photoacoustic streaming for mechanical debridement; and new devices as GentleWave system, and the self-adjusting file. Overall, all supplementary protocols demonstrated efficacy in removing the remaining FM. The implementation of various supplementary protocols can effectively remove the remaining FM from the root canal walls, although complete removal is not always achieved. However, it was not possible to determine the most effective protocol. Conversely, their association can enhance remaining FM removal. Remaining FM attached to root canal walls hinders proper chemical-mechanical preparation during endodontic reintervention. Supplementary protocols optimize the remaining FM removal, enhancing cleaning and disinfection of root canal.
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Affiliation(s)
- Amanda Freitas da Rosa
- Department of Dentistry - Endodontics Division, Health Sciences Centre, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima, CEP, Florianópolis, Santa Catarina, 88040-900, Brazil
| | - Bruna Venzke Fischer
- Department of Dentistry - Endodontics Division, Health Sciences Centre, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima, CEP, Florianópolis, Santa Catarina, 88040-900, Brazil
| | - Luiz Carlos de Lima Dias-Junior
- Department of Dentistry - Endodontics Division, Health Sciences Centre, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima, CEP, Florianópolis, Santa Catarina, 88040-900, Brazil
| | - Anna Victoria Costa Serique
- Department of Dentistry - Endodontics Division, Health Sciences Centre, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima, CEP, Florianópolis, Santa Catarina, 88040-900, Brazil
| | - Eduardo Antunes Bortoluzzi
- Department of Diagnosis & Oral Health, Endodontics Division, University of Louisville, Louisville, KY, USA
| | - Cleonice da Silveira Teixeira
- Department of Dentistry - Endodontics Division, Health Sciences Centre, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima, CEP, Florianópolis, Santa Catarina, 88040-900, Brazil
| | - Lucas da Fonseca Roberti Garcia
- Department of Dentistry - Endodontics Division, Health Sciences Centre, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima, CEP, Florianópolis, Santa Catarina, 88040-900, Brazil.
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Sümbüllü M, Ali A, Büker M, Arslan H. The efficiency of different irrigation activation techniques in the removal of calcium silicate-based endodontic sealer from artificially created groove. AUST ENDOD J 2023; 49 Suppl 1:238-244. [PMID: 36441606 DOI: 10.1111/aej.12722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 10/07/2022] [Accepted: 11/16/2022] [Indexed: 11/30/2022]
Abstract
This study evaluated the removal of a calcium silicate-based sealer (EndoSeal MTA) with needle irrigation (NI), passive ultrasonic irrigation (PUI), XP-endo Finisher (XPF) and EDDY. A total of 56 human mandibular premolars were instrumented up to size 40.04 taper. The roots were separated longitudinally, and grooves were prepared with an ultrasonic tip at one-half of each root canal. The grooves were covered with EndoSeal MTA and re-attached roots were investigated based on the activation techniques applied. The results showed that significantly more material (p < 0.05) was removed in the EDDY group compared to the NI, PUI and XPF groups in the apical region. In the coronal region, no significant difference was observed between EDDY, XPF and PUI (p > 0.05), whereas all the latter were significantly more effective than NI (p < 0.05). These findings show that the removal of EndoSeal MTA can be more effective with EDDY compared to XPF, PUI and NI in the apical region.
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Affiliation(s)
- Meltem Sümbüllü
- Department of Endodontics, Faculty of Dentistry, Ataturk University, Erzurum, Turkey
| | - Afzal Ali
- Department of Conservative Dentistry and Endodontics, Pacific Dental College and Hospital, Udaipur, India
| | - Mine Büker
- Department of Endodontics, Faculty of Dentistry, Mersin University, Mersin, Turkey
| | - Hakan Arslan
- Department of Endodontics, Faculty of Dentistry, Istanbul Medeniyet University, Istanbul, Turkey
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Streck JNZ, Arcaro S, Ceretta RA, Bortoluzzi EA, Garcia LDFR, de Almeida J, Kopper PMP, Bernardi AV. Tip and taper compatibility of accessory gutta-percha points with rotary and reciprocating instruments. Restor Dent Endod 2023; 48:e22. [PMID: 37675449 PMCID: PMC10477427 DOI: 10.5395/rde.2023.48.e22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 03/13/2023] [Accepted: 03/22/2023] [Indexed: 09/08/2023] Open
Abstract
Objectives This study was conducted to evaluate and compare the tip and taper compatibility of accessory gutta-percha points (AGPs) with various rotary and reciprocating instruments. Materials and Methods Using a profile analyzer, tip and taper measurements were taken of 10 AGPs of each of the 14 models available from Odous de Deus and the 4 models available from Dentsply-Maillefer. Diameter measurements were taken at 1-mm intervals, from 3 mm from the tip (D3) to 16 mm. Results Based on the mean values obtained, 3-dimensional (3D) models of the AGPs were drawn in Autodesk Fusion 360 and superimposed on 3D models of each instrument selected (Mtwo, Reciproc, RaCe, K3, and ProDesign Logic) to determine the compatibility between the instrument and the AGP. Data corresponding to the tips and tapers of the various AGPs, as well as the tip and taper differences between the AGPs and the instruments, were analyzed using descriptive statistics. The tapers of the AGPs were subject to the American National Standards Institute/American Dental Association No. 57 standard. The Odous de Deus extra-long medium and extra-long extra-medium AGPs were shown to be compatible with Mtwo, K3, and ProDesign Logic instruments with taper 0.06 and tip sizes 25 and 30, while the Dentsply fine and fine medium cones were compatible with Mtwo, RaCe, and K3 instruments with conicity of 0.04 and tip sizes 35 and 40. Conclusions Both the Odous de Deus and Dentsply commercial brands included 2 AGP models with tip (D3) and taper compatibility with Mtwo, RaCe, K3, and/or Prodesign Logic instruments.
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Affiliation(s)
- Júlia Niero Zanatta Streck
- Department of Endodontics, School of Dentistry, University of Extreme Southern Santa Catarina, Criciúma, SC, Brazil
| | - Sabrina Arcaro
- Department of Endodontics, School of Dentistry, University of Extreme Southern Santa Catarina, Criciúma, SC, Brazil
| | - Renan Antônio Ceretta
- Department of Endodontics, School of Dentistry, University of Extreme Southern Santa Catarina, Criciúma, SC, Brazil
| | - Eduardo Antunes Bortoluzzi
- Department of Diagnosis & Oral Health, Division of Endodontics, School of Dentistry, University of Louisville, Louisville, KY, USA
| | | | - Josiane de Almeida
- Department of Endodontics, School of Dentistry, University of Southern Santa Catarina, Florianópolis, SC, Brazil
| | - Patrícia Maria Poli Kopper
- Program in Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Anarela Vassen Bernardi
- Department of Endodontics, School of Dentistry, University of Extreme Southern Santa Catarina, Criciúma, SC, Brazil
- Biomaterials Group, Graduate Program in Materials Science and Engineering, University of Extreme Southern Santa Catarina, Criciúma, SC, Brazil
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Suzuki EH, Sponchiado-Júnior EC, Pandolfo MT, Garcia LDFR, Carvalho FMAD, Marques AAF. Shaping Ability of Reciprocating and Rotary Systems After Root Canal Retreatment: a CBCT Study. Braz Dent J 2022; 33:12-21. [PMID: 35508032 PMCID: PMC9645160 DOI: 10.1590/0103-6440202204772] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 02/25/2022] [Indexed: 11/30/2022] Open
Abstract
The purpose of this in vitro study was to evaluate the shaping ability of
reciprocating and continuous rotary systems after root canal retreatment. After
preparation and root canal filling, mesial canals of 54 mandibular molars were
distributed into 3 groups (n=18), according to the filling material removal and
re-instrumentation protocols: WOG group - WaveOne Gold system; PTN group -
ProTaper Next system; and PTU group - ProTaper Universal system. Cone-beam
computed tomographic (CBCT) images acquisition of the mesial root canals was
performed at different moments: (1) before instrumentation (unprepared root
canals), (2) after preparation and filling, (3) after filling material removal
and (4) re-instrumentation. The apical transportation (AT), centering ability
(CA) and change in root canal diameter were assessed by CBCT analysis. The
remaining filling material quantification was performed by radiographic
examination. The statistical analyses were performed using the 3-way ANOVA,
Tukey-Kramer, Kruskal-Wallis and Dunn multiple Comparison tests (p<0.05). The
tested instruments did not show full CA (=1.0). PTN group had greater AT at the
5th mm in comparison with the WOG group (p<0.05). After re-instrumentation,
WOG group had greater root canal diameter change at the 1st and 5th mm than PTN
and PTU groups (p<0.05). There was no significant difference among groups
when comparing the amount of remaining filling material after re-instrumentation
(p>0.05). The tested systems provided minimal alteration in root canal
morphology at the apical portion after root canal retreatment. However, WOG
promoted greater change in root canal diameter.
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Bis BM, Silva-Sousa YTC, Macedo LMDD, Oliveira OP, Alfredo E, Leoni GB, Rached-Junior FJA. Removal of filling material using rotating or reciprocating systems with or without solvent: microCT analysis. Braz Oral Res 2021; 35:e117. [PMID: 34816905 DOI: 10.1590/1807-3107bor-2021.vol35.0117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 06/02/2021] [Indexed: 11/22/2022] Open
Abstract
This study evaluated by the efficacy of rotary and reciprocating systems to remove filling material by micro-CT. Sixty human canines were instrumented up to F3 by ProTaper Universal system and filled with AH Plus/ gutta-percha. Specimens were submitted to 1,200 thermal cycles, scanned by microCT SkyScan 1176 and randomly distributed in groups according to the filling material removal protocol (n = 10): ProTaper Universal, ProTaper Universal/xylol, ProTaper Next, ProTaper Next/xylol, Reciproc and Reciproc/xylol. After filling removal, specimens were analyzed by microCT to separately verify the presence of gutta-percha and sealer remnants. The data (mm3) were analyzed by two way ANOVA and Tukey´s test (5%). For the remaining gutta-percha, the use of xylol provided the highest values for Reciproc (7.60 ± 0.73), which was statistically different from the other groups (p < 0.05) that presented lower values and were statistically similar to each other (p > 0.05). For the remaining sealer, xylol provided the highest values (21.25 ± 6.94) different (p < 0.05) from the use of instruments alone (11.47 ± 9.45). ProTaper Next presented the lowest values (8.16 ± 1.37) for the remaining sealer, different (p < 0.05) from that of Reciproc (24.67 ± 6.32). The qualitative analysis revealed that all groups presented some remaining root filling material, with the highest volumes presented by Reciproc and Reciproc/xylol. In conclusion the rotary systems provided greater removal of filling material regardless of the use of xylol. The use of xylol negatively interfered with the action of the reciprocating system in the removal of the gutta-percha and sealer.
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Affiliation(s)
- Bárbara Maria Bis
- Universidade de Ribeirão Preto, School of Dentistry, Department of Endodontics, Ribeirão Preto, SP, Brazil
| | | | | | - Orestes Pereira Oliveira
- Universidade de Ribeirão Preto, School of Dentistry, Department of Endodontics, Ribeirão Preto, SP, Brazil
| | - Edson Alfredo
- Universidade de Ribeirão Preto, School of Dentistry, Department of Endodontics, Ribeirão Preto, SP, Brazil
| | - Graziela Bianchi Leoni
- Universidade de Ribeirão Preto, School of Dentistry, Department of Endodontics, Ribeirão Preto, SP, Brazil
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Ajina MA, Shah PK, Chong BS. Critical analysis of research methods and experimental models to study removal of root filling materials. Int Endod J 2021; 55 Suppl 1:119-152. [PMID: 34674279 DOI: 10.1111/iej.13650] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/14/2021] [Accepted: 10/18/2021] [Indexed: 12/14/2022]
Abstract
Despite enjoying high favourable outcome rates, root canal treatment is not always successful. Root canal retreatment is a widely practised option for managing a non-healing root treated tooth. A basic distinction between retreatment and initial treatment is the requirement to remove the existing root filling material occupying the root canal space. Only then, can the technical deficiencies and possible causes of failure be addressed. Hence, the successful removal of the root filling material is critical to achieving the objectives of retreatment. Many different materials and techniques have been used for root canal filling, which have been documented in a plethora of studies; these are mainly laboratory studies investigating the removal of root filling materials. To help guide future research, which may then better inform clinical practice in relation to retreatment procedures, the focus of this narrative review is on the research methods and experimental models employed to study the removal of root filling materials. The current available literature demonstrates great variation in the research methodologies used to study the removal of root filling material, including direct visualization by splitting tooth samples or clearing, three-dimensional radiographic imaging including using microcomputed tomography or cone-beam computed tomography, and a combination of these techniques. Depending on the research method employed, variation also exists in quantification of root filling material removal; these include measurements of surface area, volume or weight, and criteria-based (semi-quantitative) assessment. Experimental models, using human teeth or resin models, differ with respect to standardization techniques and replication of the clinical scenario including initial sample preparation, canal filling, allocation and technical aspects of retreatment procedures. Future models should replicate, as closely as possible, the clinical scenario. Currently, microcomputed tomography provides a highly detailed, non-invasive and non-destructive method of objectively assessing and quantifying root filling removal.
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Affiliation(s)
- Mahdi A Ajina
- Institute of Dentistry, Barts & The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Pratik K Shah
- Institute of Dentistry, Barts & The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Bun San Chong
- Institute of Dentistry, Barts & The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
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Sfeir G, Zogheib C, Patel S, Giraud T, Nagendrababu V, Bukiet F. Calcium Silicate-Based Root Canal Sealers: A Narrative Review and Clinical Perspectives. MATERIALS 2021; 14:ma14143965. [PMID: 34300886 PMCID: PMC8306764 DOI: 10.3390/ma14143965] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 06/30/2021] [Accepted: 07/08/2021] [Indexed: 01/04/2023]
Abstract
Over the last two decades, calcium silicate-based materials have grown in popularity. As root canal sealers, these formulations have been extensively investigated and compared with conventional sealers, such as zinc oxide-eugenol and epoxy resin-based sealers, in in vitro studies that showed their promising properties, especially their biocompatibility, antimicrobial properties, and certain bioactivity. However, the consequence of their higher solubility is a matter of debate and still needs to be clarified, because it may affect their long-term sealing ability. Unlike conventional sealers, those sealers are hydraulic, and their setting is conditioned by the presence of humidity. Current evidence reveals that the properties of calcium silicate-based sealers vary depending on their formulation. To date, only a few short-term investigations addressed the clinical outcome of calcium silicate-based root canal sealers. Their use has been showed to be mainly based on practitioners' clinical habits rather than manufacturers' recommendations or available evidence. However, their particular behavior implies modifications of the clinical protocol used for conventional sealers. This narrative review aimed to discuss the properties of calcium silicate-based sealers and their clinical implications, and to propose rational indications for these sealers based on the current knowledge.
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Affiliation(s)
- Germain Sfeir
- Department of Endodontics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut 17-5208, Lebanon; (G.S.); (C.Z.)
| | - Carla Zogheib
- Department of Endodontics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut 17-5208, Lebanon; (G.S.); (C.Z.)
| | - Shanon Patel
- King’s College London Dental Institute, Guy’s Tower, Guy’s Hospital, St. Thomas’ Street, London SE1 9RT, UK;
| | - Thomas Giraud
- Assistance Publique des Hôpitaux de Marseille, 13005 France; Aix Marseille Univ, CNRS, ISM, Inst Movement Sci, 13288 Marseille, France;
| | - Venkateshbabu Nagendrababu
- Department of Preventive and Restorative Dentistry, College of Dental Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates;
| | - Frédéric Bukiet
- Assistance Publique des Hôpitaux de Marseille, 13005 France; Aix Marseille Univ, CNRS, ISM, Inst Movement Sci, 13288 Marseille, France;
- Correspondence: ; Tel.: +33-(0)6-4395-2183
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Athkuri S, Mandava J, Chalasani U, Ravi RC, Munagapati VK, Chennareddy AR. Effect of different obturating techniques and sealers on the removal of filling materials during endodontic retreatment. J Conserv Dent 2020; 22:578-582. [PMID: 33088069 PMCID: PMC7542081 DOI: 10.4103/jcd.jcd_241_19] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 04/03/2020] [Accepted: 04/15/2020] [Indexed: 11/15/2022] Open
Abstract
Background: Adequate removal of previous root filling materials is an important objective during endodontic retreatment. Aim: This study was aimed to evaluate the influence of obturation quality and sealer type on the removal of root filling materials during endodontic retreatment using micro-computed tomography (μ-CT). Materials and Methods: Ninety extracted mandibular premolars were randomly assigned to two groups (n = 45) based on the type of sealer (AH Plus and BioRoot RCS) and three sub-groups based on the obturating technique used, i.e., cold lateral condensation, warm vertical compaction, and thermoplasticized injectable techniques. Specimens were scanned using μ-CT before and after retreatment to assess the amount of filling material, and time taken for removal was recorded. Statistical Analysis: Data were analyzed using two-way analysis of variance and Tukey's multiple post hoc test at 5% significance level. Results: Filling debris percentage and retreatment time were not significantly affected by the type of sealer (P ≥ 0.05). The percentage of remaining filling material was higher in teeth obturated with thermoplasticized technique (P < 0.05). Significantly more filling material debris was observed in apical third (P < 0.05). Conclusions: The type of obturating technique used for initial root canal treatment has influenced the amount of remaining filling material and retreatment time. Retreatability of the BioRoot RCS sealer was similar to the AH Plus sealer.
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Affiliation(s)
- Srividya Athkuri
- Department of Conservative Dentistry and Endodontics, GITAM Dental College and Hospital, Visakhapatnam, Andhra Pradesh, India
| | - Jyothi Mandava
- Department of Conservative Dentistry and Endodontics, GITAM Dental College and Hospital, Visakhapatnam, Andhra Pradesh, India
| | - Uma Chalasani
- Department of Conservative Dentistry and Endodontics, GITAM Dental College and Hospital, Visakhapatnam, Andhra Pradesh, India
| | - Ravi Chandra Ravi
- Department of Conservative Dentistry and Endodontics, GITAM Dental College and Hospital, Visakhapatnam, Andhra Pradesh, India
| | - Vamsi Krishna Munagapati
- Department of Conservative Dentistry and Endodontics, GITAM Dental College and Hospital, Visakhapatnam, Andhra Pradesh, India
| | - Anusha Reddy Chennareddy
- Department of Conservative Dentistry and Endodontics, GITAM Dental College and Hospital, Visakhapatnam, Andhra Pradesh, India
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Comparison of the Self-Adjusting File and Hedström File Used as Supplementary Instruments for the Remaining Filling Material Removal During Retreatment of C-Shaped Canals: A Micro-CT Study. Eur Endod J 2020; 5:112-117. [PMID: 32766520 PMCID: PMC7398992 DOI: 10.14744/eej.2019-07-067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 03/23/2020] [Indexed: 11/20/2022] Open
Abstract
Objective: The aim of this study was to evaluate the use of Self-adjusting file (SAF) system and Hedström (H) file for removing remaining filling material (RFM) from C-shaped canals. Methods: 20 C-shaped mandibular second molars with C1 configurations were instrumented, filled with tagger´s hybrid technique. Samples were divided into 2 groups (n=10). Reciproc R25 and a Mtwo 35/04 file were used for retreatment in both groups. Then, a 2.0 SAF file (group I) and a #35 H file (group II) were used as supplementary steps for RFM removal. Micro-CT scanning was performed after every procedure. Total volumes were calculated and converted into percentages. Also, the minimum wall thickness at 3, 5, 7 mm from apex was calculated. The Prism 7.0 software was used as the analytical tool with a significance of 5%. Results: Initial obturation removal was approximately 64% in group I and 67% in Group II. The apical third had the highest values of RFM. The use of a H file significantly reduced the RFM compared to SAF in the total canal length respectively (30% vs 18%) and at 1-3 mm and 3-6 mm when compared to the use of SAF. A statistically significant decrease of RFM and minimum wall thickness were observed in both groups (P<0.05). Conclusion: None of the retreatment techniques completely removed RFM. The apical region was the more unaffected area. Also, the SAF file was less effective than the H file in removing the RFM. Although C-shaped canals possesses thinner dentinal wall thickness, no excessive dentine removal was observed after each instrument use.
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Comparison of Obturation Removal Efficiency from Straight Root Canals with ProTaper Gold or Reciproc Blue: A Micro-Computed Tomography Study. J Clin Med 2020; 9:jcm9041164. [PMID: 32325751 PMCID: PMC7230688 DOI: 10.3390/jcm9041164] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/10/2020] [Accepted: 04/15/2020] [Indexed: 11/29/2022] Open
Abstract
Background: The objective was to evaluate the efficiency of ProTaper Gold (PTG) and Reciproc Blue (RB) NiTi files in obturation material removal from straight root canals assessed by micro-computed tomography. Methods: Fifty-two anterior human teeth were shaped with a PTG rotary system until F2 (25/.08). Specimens were obturated with a continuous wave of condensation technique. For retreatment, specimens were randomly distributed in two experimental groups: PTG group (F4 file) and RB (R40 file). Micro-CT scans were performed before and after retreatment procedures. The percentage of the remaining obturation material compared to the original volume was calculated, as well as the retreatment time. The presence of separated files was recorded. A descriptive analysis was carried out, and nonparametric tests were employed. Results: The mean percentages of remaining obturation material in the PTG group and the RB group were 4.14 ± 4.30% and 4.18 ± 4.29%, respectively. The mean retreatment times for the PTG and RB groups were 144 ± 51 and 163 ± 88 s, respectively. There were no statistically significant differences, neither in removal efficiency (p > 0.05) nor in retreatment time (p > 0.05), between the two groups. The coronal and middle thirds presented significantly more remaining obturation material than the apical third (p < 0.05). No file separation occurred. Conclusions: ProTaper Gold and Reciproc Blue present with comparable efficiency in removing the obturation material, with a similar mean retreatment time.
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Campello AF, Almeida BM, Franzoni MA, Alves FRF, Marceliano-Alves MF, Rôças IN, Siqueira JF, Provenzano JC. Influence of solvent and a supplementary step with a finishing instrument on filling material removal from canals connected by an isthmus. Int Endod J 2018; 52:716-724. [PMID: 30481389 DOI: 10.1111/iej.13047] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 11/21/2018] [Indexed: 11/27/2022]
Abstract
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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Affiliation(s)
- A F Campello
- Department of Endodontics, Faculty of Dentistry, Estácio de Sá University, Rio de Janeiro, RJ, Brazil
| | - B M Almeida
- Department of Endodontics, Faculty of Dentistry, Estácio de Sá University, Rio de Janeiro, RJ, Brazil
| | - M A Franzoni
- Department of Endodontics, Faculty of Dentistry, Estácio de Sá University, Rio de Janeiro, RJ, Brazil
| | - F R F Alves
- Department of Endodontics, Faculty of Dentistry, Estácio de Sá University, Rio de Janeiro, RJ, Brazil
| | - M F Marceliano-Alves
- Department of Endodontics, Faculty of Dentistry, Estácio de Sá University, Rio de Janeiro, RJ, Brazil
| | - I N Rôças
- Department of Endodontics, Faculty of Dentistry, Estácio de Sá University, Rio de Janeiro, RJ, Brazil
| | - J F Siqueira
- Department of Endodontics, Faculty of Dentistry, Estácio de Sá University, Rio de Janeiro, RJ, Brazil
| | - J C Provenzano
- Department of Endodontics, Faculty of Dentistry, Estácio de Sá University, Rio de Janeiro, RJ, Brazil
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Madarati AA, Al-Nazzawi AA, Sammani AMN, Alkayyal MA. The efficacy of retreatment and new reciprocating systems in removing a gutta-percha-based filling material. J Taibah Univ Med Sci 2018; 13:452-458. [PMID: 31435361 PMCID: PMC6695048 DOI: 10.1016/j.jtumed.2018.03.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/27/2018] [Accepted: 03/29/2018] [Indexed: 11/29/2022] Open
Abstract
Objectives To investigate the efficacy of retreatment and reciprocating rotary systems in removing gutta-percha filling material from root-canal systems. Methods A total of 90 single-canal human teeth were instrumented using a F3 ProTaper file and obturated with gutta-percha and the Tubliseal sealer using the lateral-compaction technique. They were divided into five groups according to the rotary system used to remove the filling material: Reciproc, which used the Reciproc-R25 file; WaveOne, which used the WaveOne-Primary file; S1, which used the S1 (25/.06) file; ProTaper-R, which used the ProTaper-Retreatment system; and Mtwo-R, which used the Mtwo®-Retreatment system. The time required to remove the filling material (min) and the associated instrument separation, if any, were recorded. Teeth were cleaved longitudinally and photographed with a high-resolution camera. Images were imported to the AutoCAD application to measure the remaining filling material and the root-canal space. Data were analysed using the one-way analysis of variance and Chi-squared tests. Results The Mtwo-R group showed the highest mean remaining filling material (51%) (p < 0.001), with no significant differences among the other groups. The ProTaper group required the least time for filling-material removal (4.95 min), with significant differences compared to the other groups (p < 0.05), except the WaveOne group (5.83 min; p = 1.000). Overall, 13 instruments (15.9%) were used for filling-material removal, with a significantly greater proportion in the Mtwo-R group (33.3%) compared to the other groups (p = 0.009). Conclusions Within the limitations of this in vitro study, reciprocating rotary systems were as effective as retreatment rotary systems in removing root-canal filling material. The Mtwo-R system showed the poorest performance with respect to removal effectiveness and instrument separation.
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Affiliation(s)
- Ahmad A Madarati
- Restorative Dental Sciences Department, College of Dentistry, Taibah University, Almadinah Almunawwarah, KSA
| | - Ahmad A Al-Nazzawi
- Substitutive Dental Sciences Department, College of Dentistry, Taibah University, Almadinah Almunawwarah, KSA
| | - Aya M N Sammani
- Substitutive Dental Sciences Department, College of Dentistry, Taibah University, Almadinah Almunawwarah, KSA
| | - Mahmod A Alkayyal
- College of Dentistry, Taibah University, Almadinah Almunawwarah, KSA
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Virdee SS, Thomas MBM. A practitioner's guide to gutta-percha removal during endodontic retreatment. Br Dent J 2017; 222:251-257. [DOI: 10.1038/sj.bdj.2017.166] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2017] [Indexed: 11/09/2022]
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Rodrigues CT, Duarte MAH, de Almeida MM, de Andrade FB, Bernardineli N. Efficacy of CM-Wire, M-Wire, and Nickel-Titanium Instruments for Removing Filling Material from Curved Root Canals: A Micro–Computed Tomography Study. J Endod 2016; 42:1651-1655. [DOI: 10.1016/j.joen.2016.08.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 08/03/2016] [Accepted: 08/12/2016] [Indexed: 11/28/2022]
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