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Aldawood SA, Omar O, Almohazey D, Atmeh AR. Reliability of sealer penetration measurement methods and assessment of dentine penetrability after endodontic retreatment: A correlation in vitro study. AUST ENDOD J 2024. [PMID: 39101266 DOI: 10.1111/aej.12881] [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: 11/06/2023] [Revised: 05/19/2024] [Accepted: 07/14/2024] [Indexed: 08/06/2024]
Abstract
This study evaluated the reliability of sealer penetration measurement methods used with confocal laser scanning microscopy in correlation with the percentage of residual root filling and examined the effect of residual root-filling material on dentine penetrability after retreatment. Extracted teeth were randomly divided into different groups according to the obturation sealer used (n = 6); BioRoot RCS; MTA Fillapex; Bio-C and AH Plus. Root-filling material was removed before the secondary chemo-mechanical preparation and obturation using fluorescein labelled AH Plus. Multiple micro-computed tomography scans were obtained followed by confocal laser scanning microscopy to measure the penetration of the labelled sealer into the dentinal tubules using four different methods. Measuring sealer penetration into radicular dentine using the penetration percentage method was found to be the most reliable. Dentine penetrability during retreatment did not seem to be affected by the type of residual root-filling material.
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Affiliation(s)
- Sukainah A Aldawood
- Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
- AlAhsa Health Cluster, Ministry of Health, Alahsa, Saudi Arabia
| | - Omar Omar
- Stem Cell Research Department, Institute for R Esearch & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Dana Almohazey
- Department of Biomedical Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Amre R Atmeh
- Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
- Hamdan Bin Mohammed College of Dental Medicine (HBMCDM), Mohammed Bin Rashid University of Medicine and Health Sciences (MBRU), Dubai, UAE
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Immich F, de Araújo LP, da Gama RR, da Rosa WLDO, Piva E, Rossi-Fedele G. Fifteen years of engine-driven nickel-titanium reciprocating instruments, what do we know so far? An umbrella review. AUST ENDOD J 2024; 50:409-463. [PMID: 38923176 DOI: 10.1111/aej.12870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024]
Abstract
Numerous systematic reviews (SRs) have produced conflicting findings on engine-driven nickel-titanium reciprocating instruments (reciprocating instruments) since Yared's seminal study 15 years ago. This umbrella review analysed SRs examining the clinical and laboratory evidence regarding reciprocating instruments for root canal treatment. SRs that evaluated qualitatively and/or quantitatively the outcomes postoperative pain, oral health-related quality of life (OHRQoL), shaping ability, debris extrusion, microbial load, endotoxins reduction, cyclic fatigue, file fracture, dentinal cracks and root canal filling removal were included. The AMSTAR 2 tool was used to evaluate SRs quality, while the ROBIS tool to assess risk of bias (RoB). Forty SRs were included. The SRs revealed predominantly 'high' RoB and 'critically low' quality. Most focused on technical outcomes, exhibiting significant methodological and statistical heterogeneity. Findings suggest comparable efficacy between reciprocating and rotary instruments. However, due to the scarcity of high-quality evidence, future well-designed studies and reviews considering core outcome measures are needed.
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Affiliation(s)
- Felipe Immich
- Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - Lucas Peixoto de Araújo
- Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
- School of Dentistry, Catholic University of Pelotas, Pelotas, Brazil
| | | | | | - Evandro Piva
- Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
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Călin C, Focșăneanu AM, Paulsen F, Didilescu AC, Niță T. Shaping Efficiency of Rotary and Reciprocating Kinematics of Engine-driven Nickel-Titanium Instruments in Moderate and Severely curved Root Canals Using Microcomputed Tomography: A Systematic Review of Ex Vivo Studies. J Endod 2024; 50:907-924. [PMID: 38537784 DOI: 10.1016/j.joen.2024.03.009] [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: 12/29/2023] [Revised: 02/29/2024] [Accepted: 03/18/2024] [Indexed: 04/20/2024]
Abstract
INTRODUCTION This systematic review aimed to compare reciprocating with continuous rotary instrumentation kinematics, by means of microcomputed tomography evaluations, in extracted human permanent teeth with moderate and severe canal curvatures. METHODS The research protocol was registered in the International Prospective Register of Systematic Reviews and given the reference number CRD42023404035. An electronic search was undertaken in MEDLINE (PubMed), EBSCO, Scopus, Web of Science databases until December 2021. Manual screening of issues in endodontic journals and references of relevant articles were assessed individually. The risk of bias (RoB) of the included articles was evaluated with the QUIN tool (Quality Assessment Tool for In Vitro Studies). RESULTS Among 1640 retrieved articles, 49 were included in the qualitative synthesis. Fifteen articles had low RoB, 33 articles had medium RoB, and only 1 study was at high RoB. Continuous rotary systems had better centering ability in both moderate and severe canal curvatures and resulted in less apical transportation in severely curved root canals. None of the kinematic systems was capable of instrumenting the entire canal surface area. Reciprocating kinematics systems tended to provide higher increase in surface area of severely curved canals and produced fewer dentinal microcracks in moderately curved canals. CONCLUSIONS The evidence presented in this review suggests that continuous rotary system seems to be better than reciprocating system in solving the major issues encountered during root canal instrumentation of extracted teeth with moderate and severe curvatures.
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Affiliation(s)
- Claudiu Călin
- Faculty of Dentistry, Department of Embryology, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | | | - Friedrich Paulsen
- Institute of Functional and Clinical Anatomy, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Andreea C Didilescu
- Faculty of Dentistry, Department of Embryology, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.
| | - Tiberiu Niță
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery "Dan Theodorescu Hospital", Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
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Lee EYN, Sua ZY, Bhatia S, Kohli S, Rossi-Fedele G, Doğramacı EJ, Nagendrababu V. Oral health-related quality of life and perceptions of patients following primary root canal treatment or non-surgical retreatment. AUST ENDOD J 2024. [PMID: 38924249 DOI: 10.1111/aej.12868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 05/12/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024]
Abstract
This retrospective cohort study compared the effect of primary root canal treatment (RCT) with root canal retreatment (Re-RCT) on patient-reported outcomes in Kuala Lumpur, Malaysia. Forty randomly selected adults participated (RCT n = 20; Re-RCT n = 20). The impact their dentition had on the Oral Health Impact Profile-14 (OHIP-14) was assessed by calculating the prevalence of oral health impact, and the severity score. Focus group discussions using a semi-structured guide were arranged through an online meeting platform. Qualitative content analysis identified common themes, and relevant quotes gathered. The impact on OHIP-14 was limited for both RCT and Re-RCT groups with no significant differences in the prevalence of oral health impact. Significant differences were found for functional limitation (RCT higher) and psychological discomfort (Re-RCT higher). Common themes from the discussions include the importance of retaining teeth, the significance of effective communication between clinicians and patients and that the respondents were satisfied with the treatment.
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Affiliation(s)
| | - Zi Yee Sua
- International Medical University, Kuala Lumpur, Malaysia
| | - Shekhar Bhatia
- International Medical University, Kuala Lumpur, Malaysia
- School of Dentistry, The University of Queensland, Brisbane, Queensland, Australia
| | - Shivani Kohli
- International Medical University, Kuala Lumpur, Malaysia
- School of Medicine and Dentistry, Griffith University, Gold Coast Campus, Australia
| | - Giampiero Rossi-Fedele
- Adelaide Dental School, The University of Adelaide, Adelaide, South Australia, Australia
| | - Esma J Doğramacı
- Adelaide Dental School, The University of Adelaide, Adelaide, South Australia, Australia
| | - Venkateshbabu Nagendrababu
- International Medical University, Kuala Lumpur, Malaysia
- Department of Preventive and Restorative Dentistry, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
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Lyngdoh D, Alam S, Iftekhar H, Mishra SK. Evaluation of canal patency and cleanliness following retreatment of bioceramic sealer-obturated root canals using three different irrigant activation protocols. AUST ENDOD J 2024. [PMID: 38745548 DOI: 10.1111/aej.12855] [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: 04/04/2023] [Revised: 04/28/2024] [Accepted: 05/06/2024] [Indexed: 05/16/2024]
Abstract
This study evaluated the effectiveness of three different irrigant activation techniques in cleaning and establishing patency during retreatment of root canals obturated with gutta-percha and bioceramic sealer. 60 extracted premolars with oval-shaped canals were instrumented and obturated with gutta-percha and EndosequenceBC sealer using the 'warm hydraulic condensation' technique. The teeth were retreated using Protaper Universal Retreatment and XP-Endo Shaper system and divided into four groups according to the irrigant activation protocol used: control, passive ultrasonic irrigation (PUI), Endovac irrigation (EVI) and XP-Endo Finisher R (XPFR). Apical patency was achieved in all the samples of the XPFR group (100%), which showed a significantly higher success rate compared with the control (73.3%) and EVI groups (73.3%) (p < 0.05). The scanning electron microscopic evaluation revealed significantly cleaner middle and apical third root canals in the PUI and XPFR groups compared with the control group (p < 0.05). These findings suggest that XPFR effectively cleans and establishes patency in root canals filled with bioceramic sealers.
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Affiliation(s)
- Daiasharailang Lyngdoh
- Department of Conservative Dentistry and Endodontics, Dr Z.A Dental College, Aligarh Muslim University, Aligarh, India
| | - Sharique Alam
- Department of Conservative Dentistry and Endodontics, Dr Z.A Dental College, Aligarh Muslim University, Aligarh, India
| | - Huma Iftekhar
- Department of Conservative Dentistry and Endodontics, Dr Z.A Dental College, Aligarh Muslim University, Aligarh, India
| | - Surendra Kumar Mishra
- Department of Conservative Dentistry and Endodontics, Dr Z.A Dental College, Aligarh Muslim University, Aligarh, India
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Cecagno FL, De Martin AS, Fontana CE, Cavenago BC, Nascimento WM, Limoeiro AGDS, Bueno CEDS. Evaluation of the Ability of 3 Reciprocating Instruments to Remove Obturation Material: A Micro-Computed Tomography Study. J Endod 2024; 50:376-380. [PMID: 38147908 DOI: 10.1016/j.joen.2023.12.004] [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: 10/16/2023] [Revised: 12/11/2023] [Accepted: 12/18/2023] [Indexed: 12/28/2023]
Abstract
INTRODUCTION The purpose of this study was to evaluate the ability of the Reciproc, Reciproc Blue, and WaveOne Gold systems to remove filling material during endodontic retreatment of extracted human mandibular premolars. METHODS Thirty-nine teeth were instrumented with the Protaper Universal System to the F3 file and filled with the Tagger hybrid technique using an F3 gutta-percha cone and AH Plus cement. At the end of this period, the teeth were scanned with micro-computed tomography before and after removal of the filling material from the root canals. The teeth were divided into 3 groups (n = 13) based on the apical volume, depending on the systems used to remove the filling material. Group GR: Reciproc 40/.06; Group GRB: Reciproc Blue 40/.06; and Group GWG: WaveOne Gold 35/.06. The results were statistically analyzed using the tests of Kruskal-Wallis, Duncan, and analysis of variance at a significance level of 5%. RESULTS The results showed that there were no significant differences between the amounts of filling material removed, either for the apical and middle regions alone or in the overall evaluation for the 3 groups (P = .97). The time evaluation statistically showed that the GR and GWG groups required less time to clean the root canals than the GRB group. CONCLUSIONS Reciproc R40 files and WaveOne Gold Medium files required less time for endodontic treatment than Reciproc Blue R40 files. There was no difference in the ability to remove obturation material between the 3 instruments. No instrument was able to completely remove the filling material from the root canals.
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Affiliation(s)
- Fábio Luiz Cecagno
- Departament of Endodontics, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Alexandre Sigrist De Martin
- Departament of Endodontics, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Carlos Eduardo Fontana
- PUC Campinas, Center of Life Sciences, Programa de pós-graduação em Ciências da Saúde, Campinas, São Paulo, Brazil
| | | | - Wayne Martins Nascimento
- Departament of Endodontics, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Ana Grasiela da Silva Limoeiro
- Departament of Endodontics, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Carlos Eduardo da Silveira Bueno
- Departament of Endodontics, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil.
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Atmeh AR, Alshaiji D, Abdunabi F, Alamri M, Khamis AH. Comparing the softening effect of three gutta-percha solvents on different types of gutta-percha with different application durations. Saudi Dent J 2024; 36:281-285. [PMID: 38419989 PMCID: PMC10897599 DOI: 10.1016/j.sdentj.2023.10.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 09/27/2023] [Accepted: 10/31/2023] [Indexed: 03/02/2024] Open
Abstract
Introduction During non-surgical endodontic retreatment, gutta-percha (GP) solvents are indispensable in difficult cases when used with mechanical removal, however studies comparing their efficacy against different types of GP are limited. The purpose of this study was to investigate the softening effect of three solvents on the conventional (CGP), cross-linked carrier-based (CLGP), and thermoplasticized (TGP) and compare the effect of time on the softening effect of the solvents. Methods Tested GP were embedded in cuboidal blocks of stone with their upper surfaces exposed (1 mm diameter). Three commercial GP solvents based on D-Limonene (DL), Eucalyptol oil (EO), and orange oil (OO) were added to the exposed GP before an indenter (weight = 1Kg) was applied. Using a digital camera, the indentation depth was measured (mm) directly after applying the solvent and indenter (T = 0), and after 1, 2, and 3 min of application (T = 1,2,3). The means of indentation depth were calculated and compared using a two-way analysis of variance and Tukey's post-hoc test to assess the effect of the types of solvent, GP for each application duration, and Friedman's test to evaluate the effect of application duration on the softening effect of solvents. Results The type of GP (F = 261.43, p < 0.001), type of solvent (F = 3.57, p = 0.015), and application duration (F = 53.088, p < 0.001) were all found to significantly affect GP softening. DL exhibited the highest and only significant effect on CGP after 1 min (p < 0.05), while OO had the only significant effect against CLGP when applied for at least 2 min (p < 0.05). Both OO and EO had significant softening effects on TGP instantly or after 1 min of application, respectively. Conclusions The results of this study revealed that the softening effect of GP solvents varies depending on their type, their application duration, and the type of GP.
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Affiliation(s)
- Amre R Atmeh
- Hamdan Bin Mohammed College of Dental Medicine (HBMCDM), Mohammed Bin Rashid University of Medicine and Health Sciences (MBRU), Dubai, United Arab Emirates
| | - Dhary Alshaiji
- Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Farida Abdunabi
- Hamdan Bin Mohammed College of Dental Medicine (HBMCDM), Mohammed Bin Rashid University of Medicine and Health Sciences (MBRU), Dubai, United Arab Emirates
| | - Mohammed Alamri
- Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Amar Hassan Khamis
- Hamdan Bin Mohammed College of Dental Medicine (HBMCDM), Mohammed Bin Rashid University of Medicine and Health Sciences (MBRU), Dubai, United Arab Emirates
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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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Monteiro TM, Cortes-Cid VO, Marceliano-Alves MFV, Campello AF, Bastos LF, Lopes RT, Siqueira JF, Alves FRF. Intracanal removal and apical extrusion of filling material after retreatment using rotary or reciprocating instruments: A new approach using human cadavers. Int Endod J 2024; 57:100-107. [PMID: 37886883 DOI: 10.1111/iej.13990] [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: 07/28/2023] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 10/28/2023]
Abstract
AIM This study compared intracanal removal of filling as well as the frequency and volume of extruded material after retreatment with either HyFlex or Reciproc instruments in mandibular teeth from cadavers. METHODOLOGY The root canals of 14 pairs of contralateral single-rooted teeth in mandibles of cadavers were instrumented with Reciproc R40 and filled using lateral compaction. The mandibles were scanned in a micro-computed tomographic (micro-CT) device before and after retreatment procedures. The contralateral teeth were assigned to two groups (n = 14) according to the retreatment protocol using either HyFlex or Reciproc instrument systems. In the HyFlex group, the HyFlex Remover instrument was worked 3 mm short of the working length (WL), followed by HyFlex CM 40.04 and 50.04 at the WL. In the Reciproc group, the R50 instrument was worked up at the coronal two thirds, followed by two more cycles until the WL was reached. Pre- and post-operative micro-CT images were analysed for extrusion and intracanal removal of filling material. RESULTS After retreatment, extrusion of filling material occurred in 11 (78%) and 14 (100%) teeth from HyFlex and Reciproc groups respectively (p > .05). A similar volume of extruded material was observed after retreatment with both systems (p > .05). A significant decrease in the intracanal filling volume was verified after retreatment with both tested systems (p < .05). However, residual filling material was found in all root canals, regardless of the system. The amount of filling material removed (HyFlex = 80.8%; Reciproc = 65.9%) and the operation time was similar between systems (p > .05). CONCLUSIONS A high frequency of filling material extrusion was observed after retreatment with the two systems in a cadaver model, with no significant difference between them. Both protocols obtained similar efficacy in filling material removal procedures, although none completely cleaned the canals.
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Affiliation(s)
- Thamyres M Monteiro
- Postgraduate Program in Dentistry, University of Grande Rio (UNIGRANRIO), Duque de Caxias, Brazil
| | - Victor O Cortes-Cid
- Postgraduate Program in Dentistry, University of Grande Rio (UNIGRANRIO), Duque de Caxias, Brazil
| | | | - Andrea F Campello
- Postgraduate Program in Dentistry, University of Grande Rio (UNIGRANRIO), Duque de Caxias, Brazil
- Department of Endodontics, Faculty of Dentistry, Iguaçu University (UNIG), Nova Iguaçu, Brazil
| | - Luan F Bastos
- Department of Nuclear Energy, Rio de Janeiro Federal University, Rio de Janeiro, Brazil
| | - Ricardo T Lopes
- Department of Nuclear Energy, Rio de Janeiro Federal University, Rio de Janeiro, Brazil
| | - José F Siqueira
- Postgraduate Program in Dentistry, University of Grande Rio (UNIGRANRIO), Duque de Caxias, Brazil
- Department of Endodontics, Faculty of Dentistry, Iguaçu University (UNIG), Nova Iguaçu, Brazil
| | - Flávio R F Alves
- Postgraduate Program in Dentistry, University of Grande Rio (UNIGRANRIO), Duque de Caxias, Brazil
- Department of Endodontics, Faculty of Dentistry, Iguaçu University (UNIG), Nova Iguaçu, Brazil
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Abdelnaby P, Ibrahim M, ElBackly R. In vitro evaluation of filling material removal and apical debris extrusion after retreatment using Reciproc blue, Hyflex EDM and ProTaper retreatment files. BMC Oral Health 2023; 23:902. [PMID: 37990209 PMCID: PMC10664678 DOI: 10.1186/s12903-023-03579-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 10/25/2023] [Indexed: 11/23/2023] Open
Abstract
OBJECTIVES To evaluate the amount of remaining filing material and apical debris extrusion after retreatment using Reciproc Blue, Hyflex EDM and ProTaper Retreatment Files. MATERIALS AND METHODS Thirty-six extracted permanent mandibular first molars with moderately curved mesial roots were selected. Mesiobuccal canals were prepared using the ProTaper Next system up to size X2 and filled using gutta-percha and Adseal sealer via cold lateral compaction. Teeth were randomly divided into three equal groups (n = 12): Group 1: Reciproc Blue (RB)(VDW, Germany), Group 2: Hyflex EDM (HEDM)(Coltene/Whaledent, Switzerland), Group 3: ProTaper Universal Retreatment file system + ProTaper Next file system (PTUR + PTN)( Dentsply Maillefer, Switzerland). Eppendorf tubes were used to collect the apically extruded debris. Cone-beam computed tomographic scans were taken prior to and after retreatment and the volume of remaining filling material was assessed at the coronal, middle and apical levels. Statistical analysis was performed using the Kruskal-Wallis test, Friedman's test and Wilcoxon Sign Rank test. Significance level was set at p value 0.05. RESULTS There were no statistically significant differences among the three groups in the reduction of the volume of the filling material or in the amount of apically extruded debris. CONCLUSION All the tested filing systems showed similar efficacy in removing the filling material, however, none of them could achieve its complete removal. Apical extrusion of debris occurred with all the systems used with no significant difference between the three groups.
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Affiliation(s)
- Passent Abdelnaby
- Conservative Dentistry Department, MS Student, Endodontics, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - Mohamed Ibrahim
- Conservative Dentistry Department, Endodontics, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - Rania ElBackly
- Conservative Dentistry Department, Endodontics, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
- Tissue Engineering Laboratories, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
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Sfeir G, Bukiet F, Kaloustian MK, Kharouf N, Slimani L, Casel B, Zogheib C. Evaluation of the Impact of Calcium Silicate-Based Sealer Insertion Technique on Root Canal Obturation Quality: A Micro-Computed Tomography Study. Bioengineering (Basel) 2023; 10:1331. [PMID: 38002455 PMCID: PMC10669346 DOI: 10.3390/bioengineering10111331] [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: 10/19/2023] [Revised: 11/10/2023] [Accepted: 11/17/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND Calcium silicate-based sealers have gained in popularity over time due to their physicochemical/biological properties and their possible use with single-cone obturation. The single cone technique is a sealer-based obturation and there is still a knowledge gap regarding the potential impact of the sealer insertion method on the root canal-filling quality. Therefore, the aim of this micro-CT study was to assess the impact of the calcium silicate-based sealer insertion technique on void occurrence and on the sealer extrusion following single-cone obturation. METHODS Thirty-six single-rooted mandibular premolars with one canal were shaped with Reciproc® R25 (VDW, Munich, Germany) then divided randomly into four groups of nine canals, each depending on the TotalFill® BC Sealer insertion technique used with single cone obturation: injection in the coronal two-thirds (group A); injection in the coronal two-thirds followed by direct sonic activation (group B); injection in the coronal two-thirds followed by indirect ultrasonic activation on tweezers (group C); sealer applied only on the master-cone (control group D). Samples were then scanned using micro-CT for voids and sealer extrusion calculation. Data were statistically analyzed using v.26 IBM; Results: No statistically significant differences were noted between the four groups in terms of voids; nevertheless, sonic activation (group B) followed by ultrasonic activation on the tweezers (group C) showed the best results (p = 0.066). Group D showed significantly less sealer extrusion when compared with group C (p = 0.044), with no statistically significant differences between groups D, A and B (p > 0.05). CONCLUSIONS Despite no significant differences observed between the different sealer placement techniques, the use of sonic and ultrasonic activation might be promising to reduce void occurrence. Further investigations are needed to demonstrate the potential benefit of calcium silicate-based sealer activation especially in wide and oval root canals in order to improve the quality of the single-cone obturation.
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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.); (M.K.K.); (C.Z.)
| | - Frédéric Bukiet
- Assistance Publique des Hôpitaux de Marseille, 13005 France, Aix Marseille Univ, CNRS, ISM, Inst Movement Sci, 13288 Marseille, France;
| | - Marc Krikor Kaloustian
- Department of Endodontics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut 17-5208, Lebanon; (G.S.); (M.K.K.); (C.Z.)
| | - Naji Kharouf
- Department of Biomaterials and Bioengineering, INSERM UMR_S 1121, 67000 Strasbourg, France
- Department of Endodontics, Faculty of Dental Medicine, Strasbourg University, 67000 Strasbourg, France
| | - Lotfi Slimani
- Plateforme Imageries du Vivant, Faculté de Chirurgie Dentaire, Université de Paris, 92120 Montrouge, France
| | - Baptiste Casel
- Plateforme Imageries du Vivant, Faculté de Chirurgie Dentaire, Université de Paris, 92120 Montrouge, France
| | - Carla Zogheib
- Department of Endodontics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut 17-5208, Lebanon; (G.S.); (M.K.K.); (C.Z.)
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12
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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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13
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Da Silva V, Loroño G, Valencia de Pablo O, Estevez R, Conde AJ, Rossi-Fedele G, Cisneros R. The supplementary use of XP-endo Finisher R after Reciproc enhances the removal of a bioceramic sealer in oval root canals. AUST ENDOD J 2023; 49 Suppl 1:156-161. [PMID: 36282012 DOI: 10.1111/aej.12705] [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: 06/07/2021] [Revised: 02/05/2022] [Accepted: 10/12/2022] [Indexed: 11/26/2022]
Abstract
This study compared the performance of Reciproc and Reciproc Blue endodontic files in retreatment time and re-establishment of apical patency, plus removal of a bioceramic sealer from the canal surface with the supplementary use of the XP-endo Finisher R. Following preparation, slightly curved oval root canals in mandibular incisors were filled using a corresponding gutta-percha point and a bioceramic sealer. Apical patency achievement was assessed and the time required to reach the original working length was recorded. The samples were split longitudinally and were photographed to assess the material remaining on the canal walls. No significant differences were observed regarding patency achievement or retreatment times when comparing Reciproc and Reciproc Blue. Significant less material remained on the canal walls when Reciproc was followed by XP-endo compared with Reciproc alone, and when the data for Reciproc and Reciproc Blue were pooled.
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Affiliation(s)
- Vanessa Da Silva
- Postgraduate Program in Endodontics, European University of Madrid, Madrid, Spain
| | - Gaizka Loroño
- Postgraduate Program in Endodontics, European University of Madrid, Madrid, Spain
| | | | - Roberto Estevez
- Postgraduate Program in Endodontics, European University of Madrid, Madrid, Spain
| | - Antonio J Conde
- Postgraduate Program in Endodontics, European University of Madrid, Madrid, Spain
| | - Giampiero Rossi-Fedele
- Adelaide Dental School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Rafael Cisneros
- Postgraduate Program in Endodontics, European University of Madrid, Madrid, Spain
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14
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Tavares KIMC, Pinto JC, Santos-Junior AO, Duarte MAH, Guerreiro-Tanomaru JM, Tanomaru-Filho M. Effect of Additional Apical Preparation on Retreatment of Curved Root Canals Filled with Different Sealers. Eur J Dent 2023; 17:636-641. [PMID: 36075266 PMCID: PMC10569835 DOI: 10.1055/s-0042-1750693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
Abstract
OBJECTIVE This study assessed the influence of additional apical preparation on material removal during retreatment of curved root canals filled with different sealers. MATERIALS AND METHODS Twelve mesial roots of mandibular molars with two separate canals and curvature between 25 and 35 degrees were selected. The working length was established 1-mm short of the apical foramen, and all the root canals were prepared using ProDesign R (PDR) 25/0.06. After preparation, the root canals were divided in two groups (n = 12) and filled by continuous wave condensation technique with NeoMTA Plus or AH Plus. All the root canals were retreated using rotary ProDesign Logic RT 25/0.08, reciprocating PDR 25/0.06 and apical preparation with PDR 35/0.05. Additional apical preparation was performed with ProDesign Logic (PDL) 50/0.01. The samples were scanned using a Skycan 1176 micro-computed tomography (micro-CT), voxel size 8.74 µm, before and after the retreatment procedures. Percentages of remaining filling material were evaluated. STATISTICAL ANALYSIS The data were submitted to paired and unpaired t-tests (α = 0.05). RESULTS Percentage of remaining filling material was similar between the root canals filled with NeoMTA Plus or AH Plus sealer after retreatment using PDR 35/0.05, and after additional apical preparation using PDL 50/0.01 (p > 0.05). However, PDL 50/0.01 significantly decreased the percentage of remaining filling material in the apical third after the additional apical preparation for both sealers (p < 0.05). CONCLUSION NeoMTA Plus or AH Plus did not influence the retreatment of curved root canals. ProDesign Logic 50/0.01 promoted greater filling material removal in the apical third.
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Affiliation(s)
- Karina I. M. C. Tavares
- Department of Restorative Dentistry, School of Dentistry, São Paulo State University, Araraquara, São Paulo, Brazil
| | - Jader C. Pinto
- Department of Restorative Dentistry, School of Dentistry, São Paulo State University, Araraquara, São Paulo, Brazil
| | - Airton O. Santos-Junior
- Department of Restorative Dentistry, School of Dentistry, São Paulo State University, Araraquara, São Paulo, Brazil
| | - Marco A. H. Duarte
- Department of Dentistry, Endodontics and Dental Materials, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | | | - Mario Tanomaru-Filho
- Department of Restorative Dentistry, School of Dentistry, São Paulo State University, Araraquara, São Paulo, Brazil
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Braun A, Berthold M, Buttler P, Glock J, Wenzler JS. A New Mass Spectroscopy-Based Method for Assessing the Periodontal-Endodontic Interface after Intracanal Placement of Biomaterials In Vitro. J Funct Biomater 2023; 14:jfb14040175. [PMID: 37103265 PMCID: PMC10143328 DOI: 10.3390/jfb14040175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/09/2023] [Accepted: 03/21/2023] [Indexed: 04/28/2023] Open
Abstract
Optimizing the interface between biomaterials and dental hard tissues can prevent leakage of bacteria or inflammatory mediators into periapical tissues and thus avoid alveolar bone inflammation. In this study, an analysis system for testing the periodontal-endodontic interface using gas leakage and subsequent mass spectrometry was developed and validated using the roots of 15 single-rooted teeth in four groups: (I) roots without root canal filling, (II) roots with an inserted gutta-percha post without sealer, (III) roots with gutta-percha post and sealer, (IV) roots filled with sealer only, and (V) adhesively covered roots. Helium was used as the test gas, and its leakage rate was found by measuring the rising ion current using mass spectrometry. This system made it possible to differentiate between the leakage rates of tooth specimens with different fillings. Roots without filling showed the highest leakage values (p < 0.05). Specimens with a gutta-percha post without sealer showed statistically significantly higher leakage values than groups with a filling of gutta-percha and sealer or sealer alone (p < 0.05). This study shows that a standardized analysis system can be developed for periodontal-endodontic interfaces to prevent biomaterials and tissue degradation products from affecting the surrounding alveolar bone tissue.
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Affiliation(s)
- Andreas Braun
- Department of Operative Dentistry, Periodontology and Preventive Dentistry, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Michael Berthold
- Department of Operative Dentistry, Periodontology and Preventive Dentistry, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Patricia Buttler
- Department of Operative Dentistry, Periodontology and Preventive Dentistry, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Joanna Glock
- Department of Operative Dentistry, Periodontology and Preventive Dentistry, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074 Aachen, Germany
| | - Johannes-Simon Wenzler
- Department of Operative Dentistry, Periodontology and Preventive Dentistry, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074 Aachen, Germany
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16
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Gomes ILL, Alves FRF, Marceliano-Alves MF, Silveira SB, Sousa JCN, Provenzano JC, Gonçalves LS. Apical transportation using Mtwo or Reciproc retreatment systems in severely curved canals: a micro-computed tomographic study. Clin Oral Investig 2023; 27:1235-1241. [PMID: 36264344 DOI: 10.1007/s00784-022-04751-z] [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: 04/28/2022] [Accepted: 10/06/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To assess apical root canal transportation using Mtwo or Reciproc during retreatment of severely curved canals, using a multi-analytical approach. METHODS Forty mesial canals from mandibular molars (Vertucci type IV) were evaluated before and after endodontic retreatment to compare apical transportation with Mtwo retreatment or Reciproc. The systems were used on the same root but alternating the mesial canals. The analyses were performed by micro-computed tomography. Four evaluations were performed: (a) longitudinal transportation, (b) horizontal transportation, (c) variation in the angle of curvature of the canal, and (d) canal-root width ratio. Horizontal transportation and canal-root width ratio were evaluated in 1-, 3-, and 5-mm levels. RESULTS Longitudinal transportation occurred in all samples, with a mean of 0.13 mm for Mtwo and 0.17 mm for Reciproc. Horizontal transportation increased as distant from the apex was the evaluated level, in mean. However, the transport was not observed in all samples. The mean angle of curvature was 4.16 for Mtwo and 3.03 for Reciproc. Canal-root width decreased as distant from the apex was the evaluated level. No significant differences were observed considering all tested variables, independently of the retreatment system or evaluated level (p > 0.05). CONCLUSION Mtwo retreatment and Reciproc presented similar apical transportation (horizontal or vertical). CLINICAL RELEVANCE Both Mtwo retreatment and Reciproc systems could be considered safe regarding apical transportation.
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Affiliation(s)
- Isabelle L L Gomes
- Postgraduate Program in Dentistry, Estácio de Sá University, Rio de Janeiro, Brazil
| | - Flávio R F Alves
- Faculty of Dentistry, Department of Endodontics, Iguaçu University (UNIG), Av. Abílio Augusto Távora, 2134 - Luz, Nova Iguaçu, RJ, 26260-045, Brazil.,Postgraduate Program in Dentistry, University of Grande Rio (UNIGRANRIO), Rio de Janeiro, RJ, Brazil
| | - Marília F Marceliano-Alves
- Faculty of Dentistry, Department of Endodontics, Iguaçu University (UNIG), Av. Abílio Augusto Távora, 2134 - Luz, Nova Iguaçu, RJ, 26260-045, Brazil
| | - Stephanie B Silveira
- Postgraduate Program in Dentistry, Estácio de Sá University, Rio de Janeiro, Brazil
| | - Júlio Cézar N Sousa
- Faculty of Dentistry, Department of Endodontics, University Center of João Pessoa, Paraíba, Brazil
| | - José Claudio Provenzano
- Faculty of Dentistry, Department of Endodontics, Iguaçu University (UNIG), Av. Abílio Augusto Távora, 2134 - Luz, Nova Iguaçu, RJ, 26260-045, Brazil. .,Postgraduate Program in Dentistry, University of Grande Rio (UNIGRANRIO), Rio de Janeiro, RJ, Brazil.
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17
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Yang X, Wang Y, Ji M, Li Y, Wang H, Luo T, Gao Y, Zou L. Microcomputed tomographic analysis of the efficiency of two retreatment techniques in removing root canal filling materials from mandibular incisors. Sci Rep 2023; 13:2267. [PMID: 36755122 PMCID: PMC9908907 DOI: 10.1038/s41598-023-29156-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 01/31/2023] [Indexed: 02/10/2023] Open
Abstract
This study aimed to evaluate the removal effect of the ProTaper Next system (PTN) combined with manual nickel-titanium Hedström (MNiTiH) files or chloroform on filling materials of mandibular incisors by microcomputed tomography (micro-CT). Sixty-four extracted human mandibular incisors were finally selected and assigned to two groups (n = 32) based on root canal morphology after instrumentation. Two subgroups (n = 16) were formed based on two retreatment methods. The volume of residual filling materials (RFMs) and the surface area covered by RFMs were analyzed by micro-CT, the apical extrusion and the time taken for removing the filling materials were recorded. A smaller percentage of the volume of RFMs and less surface area covered by RFMs occurred in PTN combined with MNiTiH groups and round-shaped canal incisors (P < 0.05). The time taken for removing the filling materials was not significantly different in all groups (P > 0.05). The apical extrusion was significantly less in PTN combined with MNiTiH groups than in PTN combined with chloroform groups (P < 0.05). Neither of the two methods rendered root canals completely free from filling materials. PTN combined with MNiTiH could reduce the apical extrusion and remove filling materials more efficiently than PTN combined with chloroform.
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Affiliation(s)
- Xueqin Yang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Ye Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Mengzhen Ji
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yanyao Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Hao Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Tao Luo
- Department of Stomatology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610041, China
| | - Yuan Gao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
| | - Ling Zou
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
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18
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Madarati AA, Sammani AMN, Alnazzawi AA, Alrahlah A. Efficiency of the new reciprocating and rotary systems with or without ultrasonics in removing root-canals filling with calcium silicate-based sealer (MTA). BMC Oral Health 2023; 23:5. [PMID: 36597070 PMCID: PMC9811723 DOI: 10.1186/s12903-022-02684-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 12/21/2022] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND To compare the efficiency of endodontic rotary and reciprocating systems in removing calcium silicate-sealer based fillings and to investigate the impact of passive ultrasonic irrigation (PUI) on their efficiency. MATERIALS AND METHODS 160 root-canals were instrumented, filled with gutta-percha and calcium silicate based-sealer and divided into 10 equal groups. Five groups in which the reciprocating systems (WaveOne-Gold, Reciproc-Blue and R-Motion) and rotary systems (Fanta-AF-One and Tango-Endo) were used to remove root-canals' fillings. In the other five groups the fillings were removed by the same systems then additionally with PUI. The times to complete retreatments procedures were recorded. Micro-computed tomography's analysis of the root-canals fillings' volume before and after retreatments was used to determine the remaining filling materials (RFMs) volumes. RESULTS The RFMs after using rotary systems (10.1%) was greater than after using reciprocating systems (3.8%) (P < 0.001). The RFMs after using WOG (2%) and RB systems (2.6%) were less than those in the RM (6.8%), TE (9.5%) and FAFO (10.7%) systems [P < 0.05]. The times required to remove the filling materials using the TE (3.7 min), FAFO (4.1 min) and RM (4.1 min) systems were shorter than those required by the RB (5.4 min) and WOG (4.9 min) systems [P < 0.05]. Using PUI resulted in less RFMs (1.44%) when compared to using only rotary or reciprocating systems (6.27%) [P < 0.001]. CONCLUSIONS Endodontic reciprocation systems were more effective, but needed longer times than rotary systems in removing calcium silicate based- sealers fillings. The PUI significantly improved removal of the root-canals' filling materials. CLINICAL RELEVANCE Reciprocating systems and PUI are recommended whenever root-canals retreatment is considered regardless of using calcium silicate-based sealers.
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Affiliation(s)
- Ahmad A. Madarati
- grid.412892.40000 0004 1754 9358Restorative Dental Sciences Department, College of Dentistry, Taibah University, Madina, Kingdom of Saudi Arabia ,Riyadh, 13311 Kingdom of Saudi Arabia
| | - Aya M. N. Sammani
- grid.412892.40000 0004 1754 9358Department of Substitutive Dental Sciences, College of Dentistry, Taibah University, Madina, Kingdom of Saudi Arabia
| | - Ahmad A. Alnazzawi
- grid.412892.40000 0004 1754 9358Department of Substitutive Dental Sciences, College of Dentistry, Taibah University, Madina, Kingdom of Saudi Arabia
| | - Ali Alrahlah
- grid.56302.320000 0004 1773 5396Restorative Dental Sciences Department, Engineer Abdullah Bugshan Research Chair for Dental and Oral Rehabilitation, College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia
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Chatchawanwirote Y, Yanpiset K, Jantarat J. Effect of solvent on root canal filling material removal by two different rotary file systems in C-shaped root canals. AUST ENDOD J 2022; 48:487-493. [PMID: 34928529 DOI: 10.1111/aej.12604] [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: 05/17/2021] [Revised: 10/21/2021] [Accepted: 12/06/2021] [Indexed: 12/14/2022]
Abstract
This study compared the percentage reduction of total obturation materials, gutta-percha and sealer, using two rotary file systems with/without solvent in retreating C-shaped root canals and to evaluate the effect of the solvent on instrument separation. C-shaped root canals were scanned using micro-CT to identify the root canal morphology and randomly assigned to four groups (n = 12). Retreatment was performed using ProTaper Universal Retreatment (PTUR) or XP-endo systems with/without solvent. The number of separated instruments were recorded. The samples were scanned pre- and post-retreatment. The percentage reduction of total obturation materials, gutta-percha and sealer, were calculated. The percentage reduction of gutta-percha in the PTUR without solvent group was significantly lower than the other groups (P = 0.018). The number of separated instruments in the solvent groups were significantly lower than the no solvent groups (P < 0.05). Solvent increased gutta-percha removal, when using PTUR and decreased the occurrence of separated instruments for both systems.
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Affiliation(s)
- Yanisa Chatchawanwirote
- Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Kallaya Yanpiset
- Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Jeeraphat Jantarat
- Department of Operative Dentistry and Endodontics, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
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Varghese A, Nandini S, Sundar S, Natanasabapathy V. Full counterclockwise rotary motion kinematics enhances the removal of gutta-percha and bioceramic sealer from root canals: A computed tomographic study. J Conserv Dent 2022; 25:672-677. [PMID: 36591591 PMCID: PMC9795683 DOI: 10.4103/jcd.jcd_352_22] [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: 06/13/2022] [Revised: 07/17/2022] [Accepted: 07/28/2022] [Indexed: 01/03/2023] Open
Abstract
Background and Aim Complete removal of gutta-percha and sealer is an important step during retreatment. The aim of this study was to assess the efficacy and time taken by full counterclockwise rotary motion of a reciprocating file in the removal of gutta-percha and BioRoot™ RCS bioceramic sealer. Materials and Methods Thirty-six extracted human mandibular premolars were instrumented with Mtwo rotary files and obturated using lateral condensation technique with gutta-percha and BioRoot™ RCS bioceramic sealer. The teeth were divided into three retreatment groups (n = 12) based on the kinematics used: Group I, Mtwo retreatment (Mtwo-R) files; Group II, Reciproc files used in reciprocation mode (Reciproc-R); and Group III, Reciproc files used in full counterclockwise motion (Reciproc-CCW). The efficacy of gutta-percha and bioceramic sealer removal was assessed by volume of gutta-percha removed using cone-beam computed tomography and area of remaining gutta-percha and bioceramic sealer using ImageJ software after longitudinal sectioning. Statistical analysis was done by one-way analysis of variance test and Tukey's multiple post hoc tests. Results Reciproc-CCW motion was significantly efficient in the removal of gutta-percha and bioceramic sealer in comparison to Mtwo-R files and Reciproc-R. The time taken for gutta-percha and sealer removal was least for Reciproc-R (325.5 ± 101.68 seconds) and was statistically significant in comparison to the other groups. Conclusion Within the limitations of the study, Reciproc-CCW was an effective method of removal of gutta-percha and bioceramic sealer during retreatment.
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Affiliation(s)
- Aswathi Varghese
- Department of Conservative Dentistry and Endodontics, Faculty of Dentistry, Meenakshi Ammal Dental College and Hospital, Meenakshi Academy of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Suresh Nandini
- Department of Conservative Dentistry and Endodontics, Faculty of Dentistry, Meenakshi Ammal Dental College and Hospital, Meenakshi Academy of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Sathish Sundar
- Department of Conservative Dentistry and Endodontics, Faculty of Dentistry, Meenakshi Ammal Dental College and Hospital, Meenakshi Academy of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Velmurugan Natanasabapathy
- Department of Conservative Dentistry and Endodontics, Faculty of Dentistry, Meenakshi Ammal Dental College and Hospital, Meenakshi Academy of Higher Education and Research, Chennai, Tamil Nadu, India
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21
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Petričević GK, Katić M, Anić I, Salarić I, Vražić D, Bago I. Efficacy of different Er:YAG laser-activated photoacoustic streaming modes compared to passive ultrasonic irrigation in the retreatment of curved root canals. Clin Oral Investig 2022; 26:6773-6781. [PMID: 35879623 DOI: 10.1007/s00784-022-04637-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 07/12/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To evaluate the efficacy of passive ultrasonic irrigation (PUI) and super short pulse (SSP) and shock wave-enhanced emission photoacoustic streaming (SWEEPS) modes of Er:YAG laser-activated irrigation (LAI) with two different laser tips, in removing filling remnants after conventional retreatment in severely curved root canals. MATERIALS AND METHODS The study sample consisted of 40 extracted molars with curved mesiobuccal root canals. The canals were instrumented with ProTaper Next and filled with an epoxy resin-based sealer and gutta-percha using continuous wave vertical compaction and warm injection back-filling. After retreatment with ProTaper Universal Retreatment system and sodium hypochlorite (NaOCl), all samples were randomly divided into four groups (n = 10) according to the final irrigation technique: PUI, LAI/SSP, SWEEPS/flat-tip, and SWEEPS/radial-tip, using 6 mL of 3% NaOCl for an activation time of 3 × 30 s. The samples were subjected to micro-CT scans after root canal filling, retreatment, and final irrigation. The filling material volume and percentage reduction were calculated. RESULTS All tested irrigation techniques were successful in the elimination of the filling remnants after the retreatment (p < 0.001). The LAI/SSP group showed a higher reduction rate than the SWEEPS/flat-tip group (p = 0.032). No significant differences were found between the other groups (p > 0.05). CONCLUSION All tested techniques improved the removal of filling material during retreatment in curved canals. LAI/SSP showed slightly better results than other techniques. CLINICAL RELEVANCE The study highlights the need for additional activated irrigation after the retreatment of curved root canals. The choice between PUI and LAI is not decisive for success.
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Affiliation(s)
- Gabrijela Kapetanović Petričević
- Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10 000, Zagreb, Croatia
| | - Marko Katić
- Department of Materials, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Zagreb, Croatia
| | - Ivica Anić
- Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10 000, Zagreb, Croatia
| | - Ivan Salarić
- Department of Oral Surgery, School of Dental Medicine, University of Zagreb, Zagreb, Croatia
| | - Domagoj Vražić
- Department of Periodontology, School of Dental Medicine, University of Zagreb, Zagreb, Croatia
| | - Ivona Bago
- Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10 000, Zagreb, Croatia.
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Madarati AA, Sammani AMN, Alnazzawi AA, Alrahlah A, Pedullà E. Efficiency of reciprocating systems reciprocated at different angles in removing root-canals fillings with an MTA-type sealer: an Ex-vivo study. BMC Oral Health 2022; 22:357. [PMID: 35978330 PMCID: PMC9387022 DOI: 10.1186/s12903-022-02390-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 08/10/2022] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND There have been no reports on the impact of different reciprocating angles on retreatment performance of reciprocating files. This ex-vivo study compared the efficiency of three reciprocating systems in removing MTA-type sealer-based filling materials and investigated the influence of different reciprocating angles on their retreatment ability. METHODS 140 root-canals were instrumented to a 35 apical size and filled with an MTA-type sealer and gutta-percha cones. Samples were scanned by micro-computed-tomography and the root-canals fillings volumes were measured. Samples were divided into 7 groups according to the reciprocating angles at which the WaveOne-Gold (WOG), Reciproc-Blue (RB) and R-Motion (RM) systems were reciprocated to remove the root-canals' fillings. The WOG-150/30, WOG-90/30, RB-150/30, RB-90/30, RM-150/30 and RM-90/30 groups in which the systems were reciprocated at 150/30 and 90/30 (counterclockwise/clockwise) angles. In the RB-270/30 group the RB system was reciprocated at 270/30 angles. Samples were re-scanned and the remaining filling materials' (RFMs) volumes were measured. The percentage of the RFMs volume and its mean value for each group were calculated and data were statistically analysed at 0.05 significance level. RESULTS The WOG system resulted in less RFMs (2.24%) when reciprocated at 90/30 angles compared to that resulted from the 150/30 angles (4.96%) [P = 0.002]. The RB system reciprocated at 90/30 angles resulted in less RFMs (2.67%) compared to that resulted from the 270/30 angles (6.64%) [P = 0.001]. The RFMs after using RM system reciprocated at 90/30 (6.02%) and 150/30 (7.61%) were greater than those of WOG (2.24 and 4.96%) and RB (2.67 and 4.34%) reciprocated at the same angles (P < 0.05). The longest time required to remove the filling materials was recorded with the RB-270/30 group (6.06 min) [P = 0.00]. The times required when the WOG, RB and RM files reciprocated at 90/30 angles (3.59, 3 and 3.05 mins, respectively) were shorter than those when files were reciprocated at 150/30 angles (5.25, 4.98 and 3.67 min, respectively) [P < 0.05]. CONCLUSIONS The WOG and RB systems removed more MTA-type sealer-based root-canals fillings than the RM system. Lower counterclockwise reciprocating angles improve the retreatment ability of reciprocating systems, especially the WOG system and can reduce the time required for retreatment procedures.
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Affiliation(s)
- Ahmad A. Madarati
- grid.412892.40000 0004 1754 9358Restorative Dental Sciences Department, College of Dentistry, Taibah University, Madina, Kingdom of Saudi Arabia ,Present Address: Riyadh (12252), Kingdom of Saudi Arabia
| | - Aya M. N. Sammani
- grid.412892.40000 0004 1754 9358Department of Substitutive Dental Sciences, College of Dentistry, Taibah University, Madina, Kingdom of Saudi Arabia
| | - Ahmad A. Alnazzawi
- grid.412892.40000 0004 1754 9358Department of Substitutive Dental Sciences, College of Dentistry, Taibah University, Madina, Kingdom of Saudi Arabia
| | - Ali Alrahlah
- grid.56302.320000 0004 1773 5396Restorative Dental Sciences Department, College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Eugenio Pedullà
- grid.8158.40000 0004 1757 1969Department of General Surgery and Surgical-Medical Specialties, University of Catania, Catania, Italy
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Effect of obturation technique on penetration of calcium silicate-based sealer into dentinal tubules after endodontic retreatment of mandibular premolars. Clin Oral Investig 2022; 26:7143-7148. [PMID: 35972652 DOI: 10.1007/s00784-022-04675-8] [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: 03/24/2022] [Accepted: 08/10/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVE Confocal laser scanning microscopy (CLSM) was used to investigate the penetration of endodontic sealers into the dentinal tubules after retreatment using two different obturation techniques. MATERIALS AND METHODS Thirty mandibular premolars were prepared up to instrument F3 (ProTaper Universal, Dentsply) and filled with Endofill using the single cone technique. The canals were retreated using Mtwo instruments. Reobturation was performed with the Bio-C sealer mixed with a fluorophore dye (Fluo-3) using either the lateral condensation technique (group LC) or the single cone technique (group SC) (n = 15). Teeth were sectioned 2, 4, and 6 mm from the apex and analyzed with CLSM to assess the penetration of the sealer into the canal perimeter and the maximum depth of penetration of the sealer into the dentinal tubules. Data were analyzed using ANOVA and the Student-t and Holm-Sidak tests. RESULTS In the apical segment, the penetrated perimeter was significantly higher in the LC group than in the SC group (p < 0.05); no significant difference was found in the middle and cervical segments (p > 0.05). In terms of penetration depth, no significant differences were found for any of the segments studied (p > 0.05). CONCLUSION The LC technique promoted a higher percentage of canal circumference penetrated by the sealer than the SC technique in the apical segment after endodontic retreatment. CLINICAL RELEVANCE CLSM demonstrated that the LC technique promoted a higher percentage of canal perimeter penetrated by the Bio-C sealer than the SC technique in the apical segment of mandibular premolars after retreatment.
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Mattos NHR, Perin CP, Roskamp L, de Araújo CM, Gabardo MCL, Westphalen VPD, Fariniuk LF, Baratto-Filho F. Influence of Filling Material Remnants on the Diffusion of Hydroxyl Ions in Endodontically Retreated Teeth: An Ex Vivo Study. J Contemp Dent Pract 2022; 23:768-774. [PMID: 37283009 DOI: 10.5005/jp-journals-10024-3371] [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] [Indexed: 06/08/2023]
Abstract
AIM To assess the influence of remnants of filling material on hydroxyl ion diffusion from calcium hydroxide (CH) paste, measured by the pH value, in retreated teeth. MATERIALS AND METHODS A total of 120 single-rooted extracted teeth were prepared up to a size 35 hand file and filled. For retreatment, the specimens were divided into four groups (n = 20): ProTaper Universal Retreatment (PUR), PUR with additional instrumentation (PURA), Mtwo Retreatment (MTWR), and MTWR with additional instrumentation (MTWRA). Negative (NEG) and positive (POS) control groups were composed by 20 specimens each one. The specimens, except NEG, were filled with CH paste. The retreated groups were scanned using cone-beam computed tomography (CBCT) for analysis of filling remnants. The pH assessment was performed at the baseline, after seven, 21, 45, and 60 days of immersion in saline. Data were analyzed using Shapiro-Wilk and Levene's test, followed by a two-way analysis of variance (ANOVA) and Tukey's test. RESULTS Additional instrumentation (PURA and MTWRA) were superior regarding removal of the filling material (p <0.05); however, without significant difference (p >0.05). The mean pH value in all groups increased (p <0.05). After 60 days, no statistical difference was observed among POS and PURA; and MTWR and MTWRA. There was less diffusion of hydroxyl ions when the amount of remnants was greater than 59%. CONCLUSION Additional instrumentation improved the ability to remove filling material in both systems. All groups presented increasing pH; however, the higher the amount of remnants, the lower the diffusion of hydroxyl ions. CLINICAL SIGNIFICANCE The amount of remnants allows less diffusion of calcium hydroxyl ions. Thus, additional instrumentation improves the ability to remove these materials.
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Affiliation(s)
| | - Camila Paiva Perin
- Department of Dentistry, Universidade Tuiuti do Paraná, Rua Sydnei Antonio Rangel Santos, Curitiba, Paraná, Brazil
| | - Liliane Roskamp
- Department of Dentistry, Universidade Tuiuti do Paraná, Rua Sydnei Antonio Rangel Santos, Curitiba, Paraná, Brazil
| | - Cristiano Miranda de Araújo
- Department of Dentistry, Universidade Tuiuti do Paraná, Rua Sydnei Antonio Rangel Santos, Curitiba, Paraná, Brazil
| | - Marilisa Carneiro Leão Gabardo
- School of Health Sciences, Universidade Positivo, Rua Professor Pedro Viriato Parigot de Souza, Curitiba, Paraná, Brazil, Phone: +55 41 3526-5121, e-mail:
| | | | - Luiz Fernando Fariniuk
- School of Life Sciences, Pontifícia Universidade Católica do Paraná, Rua Imaculada Conceição, Curitiba, Paraná, Brazil
| | - Flares Baratto-Filho
- Department of Dentistry, Universidade da Região de Joinville, Rua Paulo Malschitzki, Joinville, Santa Catarina, Brazil
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25
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The Novel Role of Solvents in Non-Surgical Endodontic Retreatment. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12115492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Non-surgical endodontic retreatment is a reliable conservative option for managing post-treatment apical periodontitis. However, effective microbial control, based on the maximization of filling removal and disinfection protocols, is not yet predictable. Traditional gutta-percha solvents, which are indistinctively used for both the core and sealer filling materials, became obsolete due to unprecedented advances in endodontic technology. Nonetheless, microtomography, scanning electronic microscopy findings, and histobacteriological analysis tend to confirm the persistence of filling materials and the lack of association between root canal enlargement and superior disinfection. There is a controversy regarding the most suitable clinical protocols surrounding the shaping procedures and the supplementary disinfection steps. Based on the literature and the previous work of the team, the authors aimed to summarize the current knowledge regarding specific solvent formulations that target filling materials. Additionally, the advantage of an additional irrigation step to optimize disinfection was highlighted. This adjunctive procedure serves a dual role in the dissolution of filling materials, and in conferring an antibiofilm effect. Further research is needed to understand the novel contribution of these strategies upon clinical practice outcomes.
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26
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Spohr AR, Xavier SR, Malta CP, Pereira-Cenci T, Pappen FG, Morgental RD. Postoperative pain after endodontic reintervention: a randomized clinical trial. Braz Dent J 2022; 33:18-27. [PMID: 35766713 PMCID: PMC9645201 DOI: 10.1590/0103-6440202204785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 03/28/2022] [Indexed: 12/01/2022] Open
Abstract
The present randomized clinical trial compared the prevalence and intensity of
postoperative pain in cases of endodontic reintervention using manual or
engine-driven reciprocating instruments. As secondary objectives, the analgesic
intake and time required for the root canal filling removal and
re-instrumentation were also evaluated. Forty-eight individuals with an
endodontically treated single-rooted tooth diagnosed with asymptomatic apical
periodontitis were included in the study. Patients were randomly assigned to two
comparison groups (n=24/group): reintervention with stainless steel manual
instruments or a nickel-titanium reciprocating system (Reciproc; VDW, Munich,
Germany). The endodontic reintervention was performed in two sessions with a
calcium hydroxide-based intracanal medication applied for 14 days before root
canal obturation. Working time for the root canal filling removal and
re-instrumentation was recorded with a digital stopwatch. After each visit,
postoperative pain intensity was assessed at 12, 24, and 48 hours and seven days
using the Numerical Rating Scale (NRS). The patients were also asked about
analgesic intake. Data were analyzed using Pearson chi-square, T and
Mann-Whitney U tests (α=0.05). No significant differences between groups were
found regarding the prevalence and intensity of pain or the need for analgesic
intake at any time point (P > 0.05). Working time was significantly shorter
in the reciprocating group (18 versus 41 minutes). In conclusion, manual and
reciprocating instruments achieved the same results in terms of prevalence and
intensity of postoperative pain and analgesic intake. However, filling material
removal and re-instrumentation of the root canals were more than twice as fast
when using the reciprocating system.
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Affiliation(s)
- Andressa Raquel Spohr
- Graduate Program in Dentistry, Federal University of Pelotas(UFPel), Pelotas, RS, Brazil
| | | | - Cristiana Pereira Malta
- Graduate Program in Dental Sciences, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Tatiana Pereira-Cenci
- Graduate Program in Dentistry, Federal University of Pelotas(UFPel), Pelotas, RS, Brazil
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Karobari MI, Arshad S, Noorani TY, Ahmed N, Basheer SN, Peeran SW, Marya A, Marya CM, Messina P, Scardina GA. Root and Root Canal Configuration Characterization Using Microcomputed Tomography: A Systematic Review. J Clin Med 2022; 11:jcm11092287. [PMID: 35566414 PMCID: PMC9099997 DOI: 10.3390/jcm11092287] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/12/2022] [Accepted: 04/18/2022] [Indexed: 02/06/2023] Open
Abstract
This systematic review’s objective was to conduct a complete analysis of the literature on the root canal morphology using advanced micro-computed tomography. The electronic web databases PubMed, Scopus, and Cochrane were examined for research papers concerning the chosen keywords, evaluating the root canal morphology using Micro-CT, published up to 2021. The articles were searched using MeSH keywords and searched digitally on four specialty journal websites. DARE2 extended (Database of Attributes of Reviews of Effects) was used to assess bias risk. The information was gathered from 18 published studies that strictly met the criteria for inclusion. In the included studies, a total of 6696 samples were studied. The studies were conducted on either maxillary (n-2222) or mandibular teeth (n-3760), permanent anteriors (n-625), and Third molars (n-89). To scan samples, a Scanco Medical machine in was used in 10 studies, Bruker Micro-CT in 34, and seven other machines were utilized in the rest. Bruker Micro-CT software from Kontich, Belgium, VG-Studio Max 2.2 software from Volume Graphics, Heidelberg, Germany, was the most commonly used software. The minimum Voxel size (resolution) adopted in the included studies was 11.6 µm. However, 60 µm was the maximum. Most studies classified the root canal morphology using Vertucci’s classification system (n-16) and the four-digit system (n-6).
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Affiliation(s)
- Mohmed Isaqali Karobari
- Conservative Dentistry Unit, School of Dental Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia
- Department of Conservative Dentistry & Endodontics, Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences University, Chennai 600077, Tamil Nadu, India
- Correspondence: (M.I.K.); (T.Y.N.); (G.A.S.)
| | - Sohaib Arshad
- Periodontics Unit, School of Dental Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia;
| | - Tahir Yusuf Noorani
- Conservative Dentistry Unit, School of Dental Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia
- Correspondence: (M.I.K.); (T.Y.N.); (G.A.S.)
| | - Naveed Ahmed
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu 16150, Kelantan, Malaysia;
| | - Syed Nahid Basheer
- Department of Restorative Dental Sciences, College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia;
| | - Syed Wali Peeran
- Department of Periodontics, Armed Forces Hospital Jizan, Jazan 82722, Saudi Arabia;
| | - Anand Marya
- Department of Orthodontics, Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences University, Chennai 600077, Tamil Nadu, India;
| | - Charu Mohan Marya
- Department of Public Health Dentistry, Sudha Rustagi College of Dental Sciences and Research, Faridabad 121002, Haryana, India;
| | - Pietro Messina
- Department of Surgical, Oncological and Stomatological Disciplines, University of Palermo, 90133 Palermo, Italy;
| | - Giuseppe Alessandro Scardina
- Department of Surgical, Oncological and Stomatological Disciplines, University of Palermo, 90133 Palermo, Italy;
- Correspondence: (M.I.K.); (T.Y.N.); (G.A.S.)
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Sameh R, Omaia M. The Efficacy of Two Novel Retreatment Systems in the Removal of Root Canal Obturating Materials (An In vitro Study). Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.8112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: The complete removal of root filling material is one of the main goals of non-surgical endodontic retreatment. Thus, the development of new techniques and instruments aiming to promote this task presents clinical significance.
AIM: The purpose of the study was to assess the amount of residual root canal filling materials (gutta-percha/sealer) after using two different endodontic retreatment systems and ultrasonic tip.
METHODS: Forty-five mandibular premolar teeth were mechanically instrumented and obturated. Retreatment was performed using two different Endostar RE (Group 2), Rogin retreatment system (Group 3), and ultrasonic tip (Group 1). Roots were separated buccolingually into two halves. A digital camera connected to the stereomicroscope captured images to each half. Image-J software was used to evaluate and measure the areas with remaining filling material in each third (cervical, middle, and apical).
RESULTS: Data analysis revealed significant differences between the groups in the coronal, middle, and apical thirds (p < 0.05). The ultrasonic retreatment tips (G1) were significantly more efficient in removing the gutta-percha and sealers compared to the Rogin (G3) and Endostar (G2) retreatment endodontic kits.
CONCLUSIONS: All the file systems left some filling material in the canals. Ultrasonic retreatment tip had maximum efficacy for the removal of filling materials in comparison with the retreatment file systems under investigation.
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Jirathanyanatt T, Ponsri S. Treatment outcome and prognostic factors of orthograde retreatment: A retrospective study. J Int Soc Prev Community Dent 2022; 12:442-448. [DOI: 10.4103/jispcd.jispcd_26_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 01/17/2022] [Accepted: 07/19/2022] [Indexed: 11/04/2022] Open
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30
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Machado R, Baumeier N, Húngaro Duarte M, Vivan R, Lemos A, da Silva Neto U. Passive ultrasonic irrigation, EndoActivator system and XP-endo Finisher R as additional cleaning techniques to remove residual filling materials from flattened root canals. J Conserv Dent 2022; 25:385-391. [PMID: 36187862 PMCID: PMC9520641 DOI: 10.4103/jcd.jcd_117_22] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/14/2022] [Accepted: 05/04/2022] [Indexed: 12/03/2022] Open
Abstract
Background: The effectiveness of endodontic retreatment essentially depends on the cleaning and/or disinfection processes. In this context, the removal of root canal filling materials plays a crucial role. Aims: To assess the efficacy of passive ultrasonic irrigation (PUI), EndoActivator system (EAS), and XP-endo Finisher R (XPEFR) as additional cleaning techniques to remove the remaining root canal filling materials from flattened root canals. Subjects and Methods: Thirty-six similar flattened distal root canals of extracted human first lower molars were selected by micro-computed tomography (micro-CT) and then instrumented and filled. After the initial retreatment procedures, the residual volume of root canal filling materials was assessed by micro-CT (V1). Then, the specimens were divided into three groups (n. 12), according to the additional cleaning technique and submitted to another micro-CT scan (V2). Statistical Analysis Used: Analysis of variance and Games-Howell tests (P < 0.05). Results: The percentage reduction in the residual volume of root canal filling materials reached by PUI, EAS, and XPEFR was 28.38%, 28.12%, and 43.52%, respectively, considering the total space of the root canal (P > 0.05). In the apical third, these values were 20.05%, 21.54%, and 48.82% (P < 0.05). Conclusions: Additional cleaning techniques enabled removing a greater amount of root canal filling material from flattened distal root canals of extracted human first lower molars. Considering the total space of the root canal, there were no statistically relevant differences among the groups. In the apical third, XPEFR performed better.
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Colmenar D, Tamula T, Zhu Q, Ahn C, Primus C, Komabayashi T. Micro CT pilot evaluation of removability of two endodontic sealers. J Oral Sci 2021; 63:306-309. [PMID: 34408113 DOI: 10.2334/josnusd.21-0196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
PURPOSE This study compared the removability of AH Plus and EndoSequence BC sealers using in vitro micro-computed tomography. METHODS Ten single-canal, extracted human teeth were cleaned and shaped with ProTaper NEXT rotary files to size X5 (50/0.06) (Dentsply-Sirona). Canals were obturated with a single cone gutta-percha and either AH Plus (Dentsply-Sirona) (Group A) or EndoSequence BC (Brasseler) (Group B). ProTaper Universal Retreatment files (Dentsply-Sirona) were used to remove obturation materials after 90 days at 37oC/100% humidity. Each tooth was scanned using micro-computed tomography (SkyScan 1272; Bruker) at an isotropic resolution of 6 μm from which the percent of material removed was calculated. Two-sample t-tests and one-way ANOVA were used for analysis. RESULTS The percent removal of materials in the coronal third was 92.9% ± 7.3% (Group A) and 93.2% ± 6.1% (Group B). Removal in the middle third was 94.9% ± 8.5% (Group A) and 96.5% ± 6.1% (Group B). Apical third removal was 76.2% ± 27.9% (Group A) and 70.1% ± 30.8% (Group B). No statistically significant differences were determined between the two sealers or among the sectional thirds within each group (P > 0.05). CONCLUSION AH Plus and EndoSequence BC sealers exhibit the same removability at all canal levels of 70% to 96%, with better removal coronally.
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Affiliation(s)
| | - Tenzin Tamula
- University of New England College of Dental Medicine
| | - Qiang Zhu
- Division of Endodontology, University of Connecticut School of Dental Medicine
| | - Chul Ahn
- Department of Clinical Sciences, University of Texas Southwestern Medical Center
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32
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Bago I, Plotino G, Katić M, Ferenac A, Petričević GK, Gabrić D, Anić I. Effect of a novel laser-initiated photoacoustic activation of a solvent or sodium hypochlorite in the removal of filling remnants after retreatment of curved root canals. Photodiagnosis Photodyn Ther 2021; 36:102535. [PMID: 34536606 DOI: 10.1016/j.pdpdt.2021.102535] [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: 07/31/2021] [Revised: 08/30/2021] [Accepted: 09/13/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND This study aimed to evaluate the effect of Er:YAG laser-initiated shockwave-enhanced emission of photoacoustic streaming (SWEEPS®) and passive ultrasonic irrigation (PUI) combining thymol-based solvent or sodium hypochlorite (NaOCl) in the removal of filling remnants from curved canals. METHODS Forty-eight curved root canals were instrumented and filled with an epoxy-resin-based sealer and gutta-percha. The canals were retreated with a Wave One Gold primary file (tip size 25; variable taper) and sodium hypochlorite (NaOCl). After the retreatment, the samples were randomly divided into four groups according to the additional irrigation protocol: PUI/NaOCl, PUI/solvent, SWEEPS®/NaOCl or SWEEPS®/solvent. The volume of filling material in root canal was measured after root canal filling, after mechanical retreatment, after final irrigation protocol and after additional irrigation protocol, using micro-CT. The results were analyzed using Kruskal-Wallis test with the post-hoc Mann-Whitney U test and Wilcoxon test (α=0.05). RESULTS In the PUI group, irrigation with the solvent or NaOCl resulted in similar filling reduction (p = 0.224). In the SWEEPS® group, irrigation with NaOCl resulted in a significantly greater filling reduction compared to the solvent (p = 0.021). The SWEEPS®/NaOCl group was more effective than the PUI/NaOCl group (p = 0.008). No significant differences were found between PUI/solvent and SWEEPS® groups (p>0.05) and PUI/NaOCl and SWEEPS®/solvent group (p>0.05). CONCLUSION Although all tested protocols improved the removal of filling remnants from curved root canal, the SWEEPS® was more successful than PUI when NaOCl was used. Both tested techniques showed similar efficacy when in combination with the solvent.
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Affiliation(s)
- Ivona Bago
- Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Croatia.
| | - Gianluca Plotino
- Private Practice, Grande Plotino & Torsello - Studio di Odontoiatria, Via Calabria 25, Rome, Italy
| | - Marko Katić
- Department of Quality - National Laboratory for Length, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Croatia
| | - Adriana Ferenac
- Student of the 5th year of the School of Dental Medicine University of Zagreb, Croatia
| | | | - Dragana Gabrić
- Department of Oral Surgery, School of Dental Medicine University of Zagreb, Croatia
| | - Ivica Anić
- Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Croatia
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Candida albicans Antimicrobial and Antibiofilm Activity of Novel Endodontic Solvents. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11167748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Background: Candida albicans is the most prevalent fungi isolated in endodontic infections. In this study, the ability of C. albicans biofilm to tolerate the novel solvent mixtures methyl ethyl ketone (MEK)/tetrachloroethylene (TCE) and MEK/orange oil (OOil) sequentially to the standard irrigation of sodium hypochlorite (NaOCl) and ethylenediaminetetraacetic (EDTA) was evaluated. Methods: Biofilm cell cultures of C. albicans SC 5314 were treated sequentially with NaOCl and EDTA and exposed to MEK/TCE or MEK/OOil. The effect of the antimicrobial treatment was evaluated using the disk diffusion method for planktonic culture, and the enumeration of colony-forming units (CFUs) and scanning electron microscope (SEM) for biofilm cell culture. Results: C. albicans mature biofilm (24 h) was significantly reduced in biomass and cell viability after solvent mixtures’ exposure, compared with the previous NaOCl and EDTA treatments. MEK/OOil combination caused a total reduction of biofilm, while with MEK/TCE, there was a 3-log (CFU/cm2) reduction compared with the sequence NaOCl and EDTA, and a 4-log (CFU/cm2) reduction compared with the control. Conclusions: The additional exposure of a preformed 24 h C. albicans biofilm to novel solvent mixtures MEK/TCE and MEK/OOil caused a positive antibiofilm impact, overcoming the performance of the conventional endodontic irrigating protocol.
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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: 32] [Impact Index Per Article: 10.7] [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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Ferreira I, Babo PS, Braga AC, Lopes MA, Gomes ME, Pina-Vaz I. Supplementary solvent irrigation efficacy on filling remnants removal comparing XP-endo Finisher R vs IrriSafe. Sci Rep 2021; 11:12659. [PMID: 34135434 PMCID: PMC8209217 DOI: 10.1038/s41598-021-92175-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/28/2021] [Indexed: 11/22/2022] Open
Abstract
This study aimed to compare the efficacy of XP-endo Finisher R and IrriSafe, with a solvent mixture of Methyl ethyl ketone/Tetrachloroethylene (MEK/TCE), in the removal of root filling residues. Twenty-four human mandibular incisors were pair-matched by micro-computed tomography according to volume and aspect ratio. After retreatment, specimens were allocated to two experimental groups (n = 12), according to the supplementary instrument used. The volume of residual filling material after each irrigating step and the time for retreatment was calculated. Statistical analyses were carried out using Mann-Whitney test, with a significance level of 5%. The volume of initial root canal filling material between the groups was similar (p > 0.05). With the final irrigation protocol (NaOCl and EDTA) the volume of the filling remnants decreased significantly (p < 0.05) with no differences between IrriSafe or XP-endo Finisher R (p > 0.05). The additional solvent mixture MEK/TCE increased the efficiency of filling materials reduction, regardless of the agitating instruments employed, IrriSafe or XP-endo Finisher R (p < 0.05). There was no difference between the two groups regarding the time (p = 0.149). Both supplementary instruments were effective in the reduction of filling remnants. The additional step with a solvent mixture of MEK/TCE enabled a total recovery of patency and the achievement of cleaner canals, independently of the agitation instrument.
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Affiliation(s)
- Inês Ferreira
- CINTESIS, Faculty of Medicine of University of Porto, Al. Prof. Hernâni Monteiro, 4200-319, Porto, Portugal.
| | - Pedro S Babo
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence On Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência E Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4805-017, Braga/Guimarães, Portugal
| | - Ana Cristina Braga
- Department of Production and Systems, ALGORITMI Center, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Maria Ascensão Lopes
- REQUIMTE-LAQV, Department of Metallurgical and Materials Engineering, Faculty of Engineering, University of Porto, R. Dr. Roberto Frias, 4200-465, Porto, Portugal
| | - Manuela E Gomes
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence On Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência E Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's-PT Government Associate Laboratory, 4805-017, Braga/Guimarães, Portugal
| | - Irene Pina-Vaz
- CINTESIS, Faculty of Dental Medicine of University of Porto, Rua Dr. Manuel Pereira da Silva, 4200-393, Porto, Portugal
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Ruíz-Piñón M, Gancedo-Gancedo T, Castelo-Baz P, Lorenzo-Pouso AI, Martín-Cruces J, Martín-Biedma B. Retreatment in endodontics with plastic core obturators. A new technique. AUST ENDOD J 2021; 47:672-678. [PMID: 34097329 DOI: 10.1111/aej.12538] [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: 12/08/2020] [Revised: 04/20/2021] [Accepted: 05/20/2021] [Indexed: 12/01/2022]
Abstract
The aim of this study was to present a new technique for plastic carrier removal in retreatment situations. The gutta-percha technique that uses plastic carrier obturators is one of the most commonly used; however, removing this core is tedious and time-consuming. Two clinical cases were performed by an expert in the field of endodontics, to expose this technique, in which a conical ultrasonic tip with an active point and a Hëdstrom hand file allowed the removal of the plastic carrier quickly and effectively. The use of magnification is indispensable for a predictable success with this method.
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Affiliation(s)
- Manuel Ruíz-Piñón
- Department of Endodontics and Restorative Dentistry, Faculty of Medicine and Odontology, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Tania Gancedo-Gancedo
- Department of Endodontics and Restorative Dentistry, Faculty of Medicine and Odontology, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Pablo Castelo-Baz
- Department of Endodontics and Restorative Dentistry, Faculty of Medicine and Odontology, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Alejandro Ismael Lorenzo-Pouso
- Department of Oral Medicine, Oral Surgery and Implantology, Faculty of Medicine and Odontology, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - José Martín-Cruces
- Department of Endodontics and Restorative Dentistry, Faculty of Medicine and Odontology, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Benjamín Martín-Biedma
- Department of Endodontics and Restorative Dentistry, Faculty of Medicine and Odontology, University of Santiago de Compostela, Santiago de Compostela, Spain
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Comparison of the efficacy of laser-activated and ultrasonic-activated techniques for the removal of tricalcium silicate-based sealers and gutta-percha in root canal retreatment: a microtomography and scanning electron microscopy study. BMC Oral Health 2021; 21:275. [PMID: 34022868 PMCID: PMC8141189 DOI: 10.1186/s12903-021-01638-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 05/18/2021] [Indexed: 12/02/2022] Open
Abstract
Tricalcium silicate-based sealers have been usually indicated for the single-cone technique and result in more residual filling materials in root canal retreatment. Passive ultrasonic irrigation and photon-initiated photoacoustic streaming have been reported to improve the removal efficacy of root canal filling materials. However, the abilities of both techniques combined with NiTi re-instrumentation to remove residual tricalcium silicate-based sealer and gutta-percha have not been compared. The aim of this study was to evaluate the efficacy of laser-activated and ultrasonic-activated techniques in vitro for the removal of the tricalcium silicate-based sealer iRoot SP and gutta-percha after standard canal retreatment procedures with the use of nickel-titanium (NiTi) rotary instruments.
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Torres FFE, Guerreiro-Tanomaru JM, Pinto JC, Tanomaru-Filho M. Effect of Different Dimensions of Test Samples on the Volumetric Change Assessment Of Endodontic Materials. Braz Dent J 2021; 32:42-47. [PMID: 33914001 DOI: 10.1590/0103-6440202103507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 10/26/2020] [Indexed: 11/22/2022] Open
Abstract
New methodologies using micro-CT to evaluate solubility besides dimensional and morphological changes of endodontic materials are proposed. However, there is no standardization in the methods. The aim of this study was to assess the effect of different dimensions of test samples on volumetric change evaluation of different endodontic materials. AH Plus, FillCanal and Sealapex root canal sealers, Biodentine, IRM and MTA root-end filling cements were used in the tests. Samples of each material with a thickness of 1.5 mm and different diameters were manufactured: 6.3, 7.75, and 9.0 mm. The samples were scanned in micro-computed tomography (micro-CT) after setting and after 7 days of immersion in distilled water. The volumetric change was evaluated by means of the difference in the total volume of the specimens before and after immersion. Data were submitted to ANOVA and Tukey tests (p<0.05). The size of the samples did not affect the percentage of volumetric change of the materials (p>0.05). All sample sizes had greater volume loss for Sealapex among the sealers and Biodentine for the cements (p<0.05). In conclusion, Biodentine and Sealapex had the highest volume loss after immersion. Samples with 1.5 mm thickness, and diameters ranging between 6.3 and 9.0 mm can be used to assess the stability of endodontic materials using micro-CT without affecting the percentage of volumetric change.
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Affiliation(s)
| | | | - Jader Camilo Pinto
- Department of Restorative Dentistry, School of Dentistry, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Mario Tanomaru-Filho
- Department of Restorative Dentistry, School of Dentistry, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
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Debris Extrusion Using Reciproc Blue and XP Endo Shaper Systems in Root Canal Retreatment. Int J Dent 2021; 2021:6697587. [PMID: 33833804 PMCID: PMC8012141 DOI: 10.1155/2021/6697587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 03/08/2021] [Accepted: 03/18/2021] [Indexed: 11/18/2022] Open
Abstract
This study aimed at assessing the performance of Reciproc Blue (RB) and XP Endo Shaper (XPS), used for canal retreatment on extracted teeth, in terms of debris extrusion and obturating materials removal. Thirty mandibular premolars were prepared to ProTaper X2 file, obturated using warm vertical compaction, and then incubated for 28 days at 100% humidity at 37°C. Teeth were randomly assigned into two groups, according to the system used for retreatment (RB and XPS). During retreatment, debris extruded beyond the apex was collected in preweighed Eppendorf tubes, and the retreatment time was measured. Afterward, the teeth were longitudinally sectioned to assess the remaining obturating materials. Data were statistically analyzed using the Mann-Whitney test and chi-square test at a 95% confidence level. All the samples had extruded debris at varying weights ranging from 0.125 mg to 3.680 mg. XPS extruded less debris than RB, but no difference was detected (Mann-Whitney test; P > 0.05). RB and XPS required 54.9 ± 17.9 and 22.3 ± 9.3 seconds to perform retreatment procedures, respectively (Mann-Whitney test; P < 0.05). The sealer was found in all the samples. Compared to the RB group, fewer samples with remaining gutta-percha were found in the XPS group (Chi-square test; P < 0.05). None of the files fractured during the retreatment procedure. The tested files appear to extrude debris beyond the apex. Although XPS was able to remove the gutta-percha completely from the majority of the canals, it was unable to remove the sealer.
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40
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Silva EJNL, de Lima CO, Barbosa AFA, Ferreira CM, Crozeta BM, Lopes RT. Efficacy of an arrow-shaped ultrasonic tip for the removal of residual root canal filling materials. AUST ENDOD J 2021; 47:467-473. [PMID: 33729635 DOI: 10.1111/aej.12505] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/22/2021] [Accepted: 03/02/2021] [Indexed: 11/27/2022]
Abstract
This study aimed to evaluate the efficacy of supplementary methods to remove the remaining root filling material from root canals. Twenty mandibular single-rooted teeth were instrumented with Reciproc 25/0.08 and filled with gutta-percha and AH-Plus sealer, followed by a micro-CT scanning. The retreatment procedures were performed, the samples were rescanned and divided into two groups (n = 10) according to the supplementary method: XP-endo Finisher R and Clearsonic tip. The samples were rescanned and the volume of remaining root filling material was quantified. Data were analysed statistically (P < 0.05). The amount of filling material removed after supplementary methods was higher compared with retreatment procedure (P < 0.05). XP-endo Finisher R promoted a greater percentage of filling materials reduction in the entire root canal and apical third compared with Clearsonic tip (P < 0.05). Supplementary methods were effective in the reduction of root filling materials. XP-endo Finisher R removed more root filling material than Clearsonic tip.
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Affiliation(s)
- Emmanuel J N L Silva
- Department of Endodontics, School of Dentistry, State University of Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil.,Department of Endodontics, School of Dentistry, Grande Rio University (UNIGRANRIO), Rio de Janeiro, RJ, Brazil
| | - Carolina O de Lima
- Department of Endodontics, School of Dentistry, State University of Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil
| | - Ana F A Barbosa
- Department of Endodontics, School of Dentistry, State University of Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil
| | - Cláudio M Ferreira
- Department of Endodontics, School of Dentistry, State University of Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil
| | - Bruno M Crozeta
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Ricardo T Lopes
- Nuclear Engineering Program, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Efficacy of Removing Thermafil and GuttaCore from Straight Root Canal Systems Using a Novel Non-Surgical Root Canal Re-Treatment System: A Micro-Computed Tomography Analysis. J Clin Med 2021; 10:jcm10061266. [PMID: 33803810 PMCID: PMC8003142 DOI: 10.3390/jcm10061266] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/12/2021] [Accepted: 03/15/2021] [Indexed: 11/16/2022] Open
Abstract
The present study aims to evaluate the effectiveness of an XP-endo non-surgical root canal re-treatment system in removing both GuttaCore and Thermafil gutta-percha carrier-based root canal filling materials from straight root canal systems using micro-computed tomography (micro-CT) analysis. The study was performed on 20 single-rooted upper teeth, which were randomly allocated into the following study groups: Group A, Thermafil and AH Plus sealer (n = 10); Group B, GuttaCore and AH Plus sealer (n = 10). Before and after the non-surgical root canal re-treatment procedure, the samples were submitted for a micro-CT analysis. The volume of the root canal filling material (mm3), the volume of the remaining root canal filling material (mm3) and the time (minutes) needed to remove the root canal filling material were also recorded. Student's t-test was used to analyze the results. No statistically significant differences were found between the volume of the remaining root canal filling material in the GuttaCore and Thermafil root canal filling systems at the coronal third (p = 0.782), middle third (p = 0.838) or apical third (p = 0.882) of the straight root canal systems; however, the GuttaCore required a statistically significant (p = 0.037) shorter amount of time (4.72 ± 0.76 min) to be removed than the Thermafil carrier-based root canal filling material (5.92 ± 1.42 min). The XP-endo Finisher non-surgical endodontic re-treatment system removes both GuttaCore and Thermafil gutta-percha carrier-based root canal filling materials from straight root canal systems, although removal of the GuttaCore gutta-percha carrier-based root canal filling material required less time.
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Uzunoglu-Özyürek E, Küçükkaya Eren S, Karahan S. Contribution of XP-Endo files to the root canal filling removal: A systematic review and meta-analysis of in vitro studies. AUST ENDOD J 2021; 47:703-714. [PMID: 33713515 DOI: 10.1111/aej.12503] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 02/18/2021] [Accepted: 02/25/2021] [Indexed: 12/11/2022]
Abstract
This review was designed to analyse whether the supplementary use of XP-Endo Finisher and XP-Endo Finisher R contributes to the removal of root canal filling materials. Databases were searched up to November 2020. Studies were critically assessed according to inclusion and exclusion criteria. Risk of bias evaluation was performed. Pooled standardised mean differences (SMD) and 95% confidence intervals (95% CI) were calculated. Ten studies involving 192 teeth were eligible for systematic review and meta-analysis could be performed with eight of these studies. Strong evidence showed that XP-Endo Finisher R file contributed significantly to filling material removal from root canals (SMD (95% CI): 0.41 (0.06-0.76)). Although the evidence was conflicting, XP-Endo Finisher R file was superior than other irrigant activation techniques (SMD (95% CI): 0.47 (0.02-0.93)). The supplementary use of XP-Endo Finisher and XP-Endo Finisher R is beneficial in further removal of root canal filling materials from root canal system.
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Affiliation(s)
- Emel Uzunoglu-Özyürek
- Department of Endodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey
| | - Selen Küçükkaya Eren
- Department of Endodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey
| | - Sevilay Karahan
- Department of Biostatistics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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A comparative study of dentinal tubule penetration and the retreatability of EndoSequence BC Sealer HiFlow, iRoot SP, and AH Plus with different obturation techniques. Clin Oral Investig 2021; 25:4163-4173. [PMID: 33638051 PMCID: PMC8137581 DOI: 10.1007/s00784-020-03747-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 12/15/2020] [Indexed: 12/17/2022]
Abstract
Objectives This study aimed to evaluate dentinal tubule penetration and the retreatability of EndoSequence BC Sealer HiFlow (HiFlow), iRoot SP, and AH Plus when using the single-cone (SC) or continuous wave condensation (CWC) technique. Materials and methods Sixty-five single-rooted teeth were instrumented and randomly divided into 5 groups: group 1, AH Plus/CWC; group 2, iRoot SP/CWC; group 3, iRoot SP/SC; group 4, HiFlow/CWC; and group 5, HiFlow/SC. The ability to re-establish patency during endodontic retreatment was recorded, as was the time taken to reach the working length. Dentinal tubule penetration and remaining debris after retreatment were evaluated by confocal microscopy and scanning electron microscopy. Data were analyzed by Kruskal-Wallis test and Dunn’s multiple comparisons test (α = 0.05). Results The HiFlow/CWC and iRoot SP/CWC groups required more time to reach the working length than groups that underwent the SC technique regardless of the sealer used (P < .05). The HiFlow/CWC group showed a significantly higher percentage of sealer penetration area than that of the iRoot SP/SC at 4 mm from the apex (P < .05) and penetrated deeper into dentinal tubules than iRoot SP/SC at both 8-mm and 12-mm levels (P < .05). Moreover, the HiFlow/CWC and HiFlow/SC groups demonstrated less remaining sealer along the canal wall than AH Plus/CWC group at 4-mm level (P < .05). Conclusions HiFlow/CWC technique showed better performance in dentinal tubule penetration than that of iRoot SP/SC. Both HiFlow and iRoot SP combined with CWC technique groups required more retreatment time than the other groups. Furthermore, using HiFlow with either the CWC or SC technique left less remaining sealer at 4-mm level than using AH Plus with the CWC technique during retreatment. Clinical relevance With favorable performance in dentinal tubule penetration and retreatability in endodontic retreatment, the combined use of EndoSequence BC Sealer HiFlow with the recommended continuous wave condensation technique may be a worthwhile choice in root canal treatment.
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Caviedes-Bucheli J, Rios-Osorio N, Usme D, Jimenez C, Pinzon A, Rincón J, Azuero-Holguin MM, Zubizarreta-Macho A, Gomez-Sosa JF, Munoz HR. Three-dimensional analysis of the root canal preparation with Reciproc Blue®, WaveOne Gold® and XP EndoShaper®: a new method in vivo. BMC Oral Health 2021; 21:88. [PMID: 33632187 PMCID: PMC7908651 DOI: 10.1186/s12903-021-01450-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 02/18/2021] [Indexed: 01/08/2023] Open
Abstract
Background The purpose of this study was to evaluate the changes in canal volume after root canal preparation in vivo with 3 different single-file techniques (Reciproc-Blue®, WaveOne-Gold® and XP-EndoShaper®), with a new method using CBCT and 3D reconstruction. Methods In this prospective study, thirty human lower premolars from healthy patients were used, in which extraction was indicated for orthodontic reasons. All the teeth used were caries- and restoration-free with complete root development, without signs of periodontal disease or traumatic occlusion, and with only one straight canal (up to 25º curvature). Teeth were randomly divided into three different groups: Reciproc-Blue, WaveOne-Gold and XP-EndoShaper. CBCT scans before root canal preparation were used to create a 3D reconstruction with RHINOCEROS 5.0 software to assess the initial canal volume, and then compared with 3D reconstructions after canal preparation to measure the increase in canal volume. Student’s t test for paired data were used to determine statistically significant differences between the before and after canal volumes. Anova test was used to determine statistically significant differences in the percentage of canal volume increase between the groups and Tukey's post-hoc test were used to paired comparison. Results Reciproc-Blue showed the higher increase in canal volume, followed by WaveOne-Gold and XP-EndoShaper (p = 0.003). XP-EndoShaper did not show a statistically significant increase in canal volume after root canal preparation (p = 0.06). Conclusion With this model, Reciproc-Blue showed higher increase in root canal volume, followed by WaveOne-Gold, while XP-EndoShaper did not significantly increase root canal volume during preparation.
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Affiliation(s)
- Javier Caviedes-Bucheli
- Centro de Investigaciones Odontologicas, Pontificia Universidad Javeriana, Bogota, Colombia.
| | - Nestor Rios-Osorio
- Postgraduate Endodontics Department, Institucion Universitaria Colegios de Colombia, Bogota, Colombia
| | - Diana Usme
- Postgraduate Endodontics Department, Institucion Universitaria Colegios de Colombia, Bogota, Colombia
| | - Cristian Jimenez
- Postgraduate Endodontics Department, Institucion Universitaria Colegios de Colombia, Bogota, Colombia
| | - Adriana Pinzon
- Postgraduate Endodontics Department, Institucion Universitaria Colegios de Colombia, Bogota, Colombia
| | | | - María M Azuero-Holguin
- Centro de Investigaciones Odontologicas, Pontificia Universidad Javeriana, Bogota, Colombia.,Postgraduate Endodontics Department, Institucion Universitaria Colegios de Colombia, Bogota, Colombia
| | - Alvaro Zubizarreta-Macho
- Department of Endodontics, Faculty of Health Sciences, Alfonso X El Sabio University, Madrid, Spain
| | - Jose F Gomez-Sosa
- Postgraduate Endodontics Department, Universidad Central de Venezuela, Caracas, Venezuela
| | - Hugo R Munoz
- Endodontics Department, Universidad de San Carlos, Guatemala, Guatemala
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Pinto JC, Torres FFE, Santos-Junior AO, Duarte MAH, Guerreiro-Tanomaru JM, Tanomaru-Filho M. Safety and Effectiveness of Additional Apical Preparation using a Rotary Heat-treated Nickel-Titanium file with Larger Diameter and Minimum Taper in Retreatment of Curved Root Canals. Eur J Dent 2021; 15:247-252. [PMID: 33622011 PMCID: PMC8184271 DOI: 10.1055/s-0041-1723065] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE The aim of this study was to investigate the effect of additional apical preparation using the ProDesign Logic (PDL) 50/.01 rotary heat-treated nickel-titanium (NiTi) file with a larger diameter and minimal taper for retreatment of curved root canals. MATERIALS AND METHODS Mesial curved root canals of 12 mandibular molars were prepared using PDL 25/.06 and filled using the continuous wave of condensation technique and AH Plus sealer. After retreatment using ProDesign S (PDS) 25/.08, PDL 25/.06 and PDL 35/05, a complementary procedure was performed with PDL 50/.01. Microcomputed tomography (micro-CT) scanning was performed before and after retreatment procedures. The cyclic fatigue resistance of unused PDS 25/.08, PDL 25/.06, PDL 35/.05 and PDL 50/.01 instruments (n = 12) was evaluated in a stainless-steel device. STATISTICAL ANALYSIS Data on the volumes of the root canals and the remaining filling materials were submitted to the paired t-test. Cyclic fatigue resistance data was submitted to one-way ANOVA and Tukey's tests (α = 0.05). RESULTS Use of PDL 50/.01 decreased the remaining filling materials in the apical third (p < 0.05). The root canal volume was similar in the cervical and middle thirds before and after preparation using PDL 50/.01 (p > 0.05). PDL 50/.01 presented the highest cyclic fatigue resistance (p < 0.05). CONCLUSIONS Use of the PDL 50/.01 instrument as an additional apical preparation for retreatment of curved root canals improved filling material removal in the apical third, while maintaining the dentin in the cervical and middle thirds. In addition, PDL 50/.01 presented high-flexural resistance.
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Affiliation(s)
- Jader Camilo Pinto
- Department of Restorative Dentistry, School of Dentistry, São Paulo State University, São Paulo, Brazil
| | | | | | - Marco Antonio Hungaro Duarte
- Department of Dentistry, Endodontics and Dental Materials, School of Dentistry, University of São Paulo São Paulo, Brazil
| | | | - Mario Tanomaru-Filho
- Department of Restorative Dentistry, School of Dentistry, São Paulo State University, São Paulo, Brazil
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Accuracy and Reliability of Intraoral Radiographs in Determining the Cleanliness of Root Canals after Endodontic Retreatment. Eur Endod J 2021; 2:1-5. [PMID: 33403328 PMCID: PMC7757945 DOI: 10.14744/eej.2017.17014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 04/05/2017] [Accepted: 05/30/2017] [Indexed: 11/20/2022] Open
Abstract
Objective: This study aimed to evaluate the accuracy and reliability of periapical radiographs obtained with two different projections in determining the cleanliness of root canals in endodontic retreatment using the sectioned roots as a gold standard. Methods: The amount of residual root-filling material after endodontic retreatment procedures in 42 roots was assessed in radiographs and in microscopic photographs of the sectioned roots by five observers. Furthermore, the cleanliness of 80 roots was assessed based on orthogonal and mesio-angulated radiographs. Four parameters were used for the evaluation of cleanliness. Wilcoxon signed-rank tests and percentage agreement calculations were used for comparisons between the radiographs and the gold-standard observations and between the orthogonal and mesio-angulated radiographs, respectively. Intra- and interobserver reproducibility was tested using Kappa statistics and intra-class correlation tests. The statistically significance level was 0.05. Results: In general, significantly more residual root-filling material was detected in the photographs of the split roots (gold standard) than in the radiographs. Comparing orthogonal and eccentric projections, only slight differences in cleanliness were found. The intraobserver reproducibility was fair to almost perfect for radiographs and microscopic photographs. For all parameters, the reproducibility was better for the radiographs than for the microscopic photographs. The interobserver variability ranged from fair to almost perfect agreement for the radiographs. Conclusion: The accuracy of periapical radiographs was poor in determining the cleanliness of root canals after endodontic retreatment, whereas the reliability of the radiographs was fair. A mesio-angulated projection did not contribute essentially to the detection of residual root-filling materials.
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Natanasabapathy V, Arul B, Varghese A, Mishra A, Elango S, Padmanaban S. Retrievability of bioceramic-based sealers in comparison with epoxy resin-based sealer assessed using microcomputed tomography: A systematic review of laboratory-based studies. J Conserv Dent 2021; 24:421-434. [PMID: 35399761 PMCID: PMC8989176 DOI: 10.4103/jcd.jcd_376_21] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/30/2021] [Accepted: 10/16/2021] [Indexed: 12/02/2022] Open
Abstract
Aim: The objective was to evaluate the retrievability of bioceramic sealers in comparison with epoxy resin-based sealers assessed using microcomputed tomography. Materials and Methods: Four reviewers independently conducted a systematic literature search in four electronic databases. The risk of bias was assessed using modified Joanna Briggs Institute Critical Appraisal tools for Quasi-Experimental Studies. Results: Ten articles were included in this review and all had a moderate risk of bias. The results across the included articles were inconsistent with some indicating easier/difficult removal of bioceramic sealers, while others indicate no difference. The studies varied in terms of the type of bioceramic sealer used, root canal anatomy, and retreatment techniques followed. Due to heterogeneity, only a qualitative analysis was performed and no meta-analysis was conducted. Conclusion: The quality of evidence is low and no definitive conclusion could be derived regarding the retrievability of bioceramic sealer/AH plus sealer from the root canals during retreatment procedures.
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Weissheimer T, Heck L, Calefi PHS, Alcalde MP, Rosa RA, Vivan RR, Duarte MAH, Só MVR. Evaluation of the mechanical properties of different nickel–titanium retreatment instruments. AUST ENDOD J 2020; 47:265-272. [DOI: 10.1111/aej.12474] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/27/2020] [Accepted: 11/21/2020] [Indexed: 11/27/2022]
Affiliation(s)
- Theodoro Weissheimer
- Department of Conservative Dentistry Federal University of Rio Grande do Sul Porto Alegre Brazil
| | - Luana Heck
- Department of Conservative Dentistry Federal University of Rio Grande do Sul Porto Alegre Brazil
| | - Pedro Henrique Souza Calefi
- Department of Operative Dentistry Endodontics and Dental Materials Bauru School of Dentistry University of São Paulo São Paulo Brazil
| | | | - Ricardo Abreu Rosa
- Department of Conservative Dentistry Federal University of Rio Grande do Sul Porto Alegre Brazil
| | - Rodrigo Ricci Vivan
- Department of Operative Dentistry Endodontics and Dental Materials Bauru School of Dentistry University of São Paulo São Paulo Brazil
| | - Marco Antonio Hungaro Duarte
- Department of Operative Dentistry Endodontics and Dental Materials Bauru School of Dentistry University of São Paulo São Paulo Brazil
| | - Marcus Vinícius Reis Só
- Department of Conservative Dentistry Federal University of Rio Grande do Sul Porto Alegre Brazil
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Dotto L, Sarkis-Onofre R, Bacchi A, Pereira GKR. The use of solvents for gutta-percha dissolution/removal during endodontic retreatments: A scoping review. J Biomed Mater Res B Appl Biomater 2020; 109:890-901. [PMID: 33155731 DOI: 10.1002/jbm.b.34753] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 10/02/2020] [Accepted: 10/06/2020] [Indexed: 11/05/2022]
Abstract
This scoping review study aimed to map the evidence about solvents' use for gutta-percha dissolution and removal during endodontic retreatments. The study protocol followed the Joanna Briggs Institute guidelines, available online (https://osf.io/5vy8n/). Reporting was based on PRISMA Extension for Scoping Reviews. We selected dentistry studies that considered the effectiveness of solvents in gutta-percha dissolution in endodontic retreatments and compared their performance to the use of instrumentation techniques without solvents. The search and study screening were performed in PubMed and Scopus databases by two independent researchers. A descriptive analysis considered the study design, method/technique used for obturation, method/technique used for instrumentation during retreatment, solvent solutions tested, exposure time, and main findings. A total of 41 studies were included. Despite that, most studies suggested that solvents' use may complicate root canal cleanliness, regardless of the type of instrumentation used, and facilitate the presence of gutta-percha remnants in the root surface. Thus, the use of solvents should be avoided and its use should only be considered if the previous working length was not possible to access without it. Despite that, high heterogeneity was observed, further studies are still encouraged comparing the performance and effects of different solvents in different clinical scenarios.
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Affiliation(s)
- Lara Dotto
- MSciD Post-Graduate Program in Dentistry, School of Dentistry, Meridional Faculty-IMED, Passo Fundo, Brazil
| | - Rafael Sarkis-Onofre
- MSciD Post-Graduate Program in Dentistry, School of Dentistry, Meridional Faculty-IMED, Passo Fundo, Brazil
| | - Ataís Bacchi
- MSciD Post-Graduate Program in Dentistry, School of Dentistry, Meridional Faculty-IMED, Passo Fundo, Brazil
| | - Gabriel Kalil Rocha Pereira
- MSciD and Phd Post-Graduate Program in Oral Sciences, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
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Azevedo MAD, Silva TGD, Fernandes Â, Piasecki L, Fariniuk LF, Silva Neto UXD. Endodontic Retreatment Using a Single Instrument from four Nickel-Titanium Systems - A Micro-CT Study. Braz Dent J 2020; 31:605-610. [DOI: 10.1590/0103-6440202003463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 07/01/2020] [Indexed: 01/15/2023] Open
Abstract
Abstract This study evaluated the efficiency of using a single instrument from three different rotary multi-file systems and compared them with that of a reciprocating single-file for endodontic retreatment by means of micro-CT. Sixty extracted canines were prepared using a size F2 ProTaper Universal file and obturated. After 30 days of storage at 37ºC and 100% humidity, the teeth were randomly divided into four groups (n=15) based on the type of instrument used to retreatment: ProTaper Next (PTN), ProTaper Gold (PTG), TRUShape 3D (TS), and WaveOne (WO). The canals were retreated using only the size 40 instrument from each system according to the manufacturer’s recommendations for torque and speed. The time required to remove the filling material was recorded in seconds. The amount of initial and residual filling material and the quantity of dentin removed were assessed by means of micro-CT. Data were statistically analyzed (ANOVA and Kruskal-Wallis) at a 5% significance level. TS instruments required the highest (p<0.05) amount of time (mean, 384.80 ±144.92) compared with the WO (229.67±68.16) and PTG (248.67±64.22) and not so different from PTN instruments (327.67±133.3). No differences in the amount of dentin removed, initial and residual filling volume, and percentages of filling material were observed among the groups. The use of a single rotary instrument from the PTG, TS, and PTN systems was as effective as that of the single-file reciprocating WO system. However, none of the instruments was able to remove the filling materials completely.
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