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Kılıç Y, Tulgar MM, Karataşlıoğlu E. Effect of different apical actions of new integrated endodontic motors on apical debris extrusion: An in vitro study. AUST ENDOD J 2024; 50:110-114. [PMID: 37964468 DOI: 10.1111/aej.12814] [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: 06/26/2023] [Revised: 10/12/2023] [Accepted: 10/30/2023] [Indexed: 11/16/2023]
Abstract
The new generation endodontic motors can perform different kinematics when they reach a certain predetermined level thanks to the integrated apex locator system. These actions consist of apical reverse, apical slow down and apical stop. The aim of this study is to compare this action's effect on apical debris extrusion. Sixty extracted human lower premolars were selected. Teeth are divided into four random groups (n = 15). Groups are prepared accordance to their group names as continuous rotation, apical slow down, apical reverse and apical stop. Extruded debris is collected into preweighted Eppendorf tubes and then calculated. One-way ANOVA test showed no statistically significant result between experimental groups. Similar debris extrusion values of all motion modes of the integrated endodontic motor can be interpreted that there will be similar debris extrusion and consequently similar postoperative pain on clinical setting. More in vitro and in vivo research is needed to make a conclusion.
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Affiliation(s)
- Yağmur Kılıç
- Department of Endodontology, Faculty of Dentistry, Izmir Katip Çelebi University, Izmir, Turkey
| | - Mustafa Mert Tulgar
- Department of Endodontology, Faculty of Dentistry, Izmir Katip Çelebi University, Izmir, Turkey
| | - Emrah Karataşlıoğlu
- Department of Endodontology, Faculty of Dentistry, Izmir Katip Çelebi University, Izmir, Turkey
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Laslami K, Khaldoune S, Sy A, Drouri S, Benkiran I. Apical Extrusion: Is It an Inherent Occurrence During Every Endodontic Treatment? Cureus 2023; 15:e45211. [PMID: 37720124 PMCID: PMC10504573 DOI: 10.7759/cureus.45211] [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] [Accepted: 09/06/2023] [Indexed: 09/19/2023] Open
Abstract
The aim of this literature review was to analyze all available scientific data on apical extrusion and to identify and associate the possible factors influencing the occurrence of apical extrusion, ranging from the choice of the canal shaping system, the irrigation technique, to the choice of diameter and the apical limit of preparation. A bibliographic search for relevant articles on apical extrusion of debris, irrigants, and bacteria was performed using the following databases: PubMed, Cochrane Library, and ScienceDirect. This search identified articles published between 2010 and 2023 in two languages (French and English). After selective sorting, 25 relevant documents were included. All the studies retained clearly agree on the inherent nature of apical extrusion during endodontic treatment. At the same time, we also understand that the amount of extrusion can be influenced by a number of parameters throughout endodontic therapy. According to this review, despite the undeniable nature of apical extrusion during endodontic therapy, studies with relatable experimental models that approach in vivo conditions are required to establish exploitable conclusions regarding apical extrusion and its prevention.
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Affiliation(s)
- Kaoutar Laslami
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Medicine, University Hassan II, Casablanca, MAR
| | - Salma Khaldoune
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Medicine, University Hassan II, Casablanca, MAR
| | - Aly Sy
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Medicine, University Hassan II, Casablanca, MAR
| | - Sofia Drouri
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Medicine, University Hassan II, Casablanca, MAR
| | - Imane Benkiran
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Medicine, University Hassan II, Casablanca, MAR
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Abduljalil M, Andac G, Basmaci F. Impacts of different Nickel-Titanium rotary and reciprocating root canal preparation systems on the amount of apically extruded debris. AUST ENDOD J 2023; 49 Suppl 1:308-314. [PMID: 36571483 DOI: 10.1111/aej.12734] [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: 02/01/2022] [Revised: 07/18/2022] [Accepted: 12/18/2022] [Indexed: 12/27/2022]
Abstract
This study aimed to evaluate the amount of apically extruded debris caused by different NiTi files. One hundred mandibular premolars were included in this study. The specimens were divided into five groups (n = 20): (i) TruNatomy, (ii) WaveOne Gold, (iii) 2Shape, (iv) ProTaper Next and (v) Reciproc Blue. The extruded debris was collected into preweighed Eppendorf tubes. These tubes were weighed again, and the net weight of debris was calculated. Data were statistically analysed, and the significance level was set at 5%. The least amount of extruded debris was observed in the TruNatomy group (p < 0.05). Statistically significant differences were not found among (iii), (iv) and (v) groups (p > 0.05). However, these groups resulted in significantly higher amounts of debris when compared to (i) and (ii) groups (p < 0.05). The results lead us to conclude that all instrumentation systems caused apical extrusion of debris at varying weights.
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Affiliation(s)
- Mohamad Abduljalil
- Department of Endodontics, Faculty of Dentistry, European University of Lefke, Mersin 10, Turkey
| | - Gizem Andac
- Department of Endodontics, Faculty of Dentistry, Near East University, Mersin 10, Turkey
| | - Fatma Basmaci
- Department of Endodontics, Faculty of Dentistry, Near East University, Mersin 10, Turkey
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Treatment Outcome and Root Canal Preparation Techniques: 5-Year Follow-Up. Int Dent J 2022; 72:811-818. [PMID: 36153168 DOI: 10.1016/j.identj.2022.08.008] [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: 02/21/2022] [Revised: 08/11/2022] [Accepted: 08/16/2022] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVE This study aims at comparing treatment outcome and tooth survival of root canal-filled teeth following manual vs rotary instrumentation techniques over a 5-year period. METHODS This was a single-centre study conducted as a follow-up to a short-term parallel-arm randomised controlled noninferiority trial in which root canal treatment was performed on teeth using either rotary or manual instrumentation. Patients were monitored at post 6-month, 1-year, 4-year, and 5-year review periods by blinded evaluators. Treatment outcome was categorised as favourable, uncertain, and unfavourable (employing European Society of Endodontology categorisation based on strict clinical and radiographic criteria), and 5-year tooth survival was determined by assessing whether tooth was in situ in the oral cavity or extracted. The Kaplan-Meier method and log rank test evaluated tooth survival. P value <.05 was considered statistically significant. RESULTS Ninety of 120 treated teeth were assessed in 37 men and 40 women with mean age of 30.6 ± 10.99 years. Treatment outcome was significantly more favourable in the rotary group compared to the manual group at post 6-month (P = .021) and 1-year (P = .043) review periods. The differences in favourable outcome (P = .498) and tooth survival (P = .296) between the 2 groups were, however, not significant at the 5-year review period. CONCLUSIONS The rotary instrumentation technique was shown to be more effective in resolving clinical symptoms and promoting periapical healing after the post 6-month and 1-year review compared to the manual instrumentation technique; however, both groups had similar favourable outcomes and survival rates after an extended 5-year review period.
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Tanalp J. A critical analysis of research methods and experimental models to study apical extrusion of debris and irrigants. Int Endod J 2022; 55 Suppl 1:153-177. [DOI: 10.1111/iej.13686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 11/30/2022]
Affiliation(s)
- J Tanalp
- Yeditepe University Faculty of Dentistry Department of Endodontics Istanbul Turkey
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Soni P, Kumar P, Taneja S, Jain A. Effect of glide path files with different metallurgy on intracanal bacterial extrusion by HyFlex electrical discharge machining file: An in vitro study. ENDODONTOLOGY 2022. [DOI: 10.4103/endo.endo_39_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Comparing the amount of removed dentin thickness in root canal treated primary molar teeth using different instrumentation techniques: in-vitro study using CBCT. Eur Arch Paediatr Dent 2021; 23:255-260. [PMID: 34494202 DOI: 10.1007/s40368-021-00662-x] [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: 05/01/2021] [Accepted: 08/24/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE There is a clinical dilemma about root canal preparation for endodontic treatment of primary teeth. This study aimed to compare the amount of dentin removal in root canal treated primary molar teeth with three preparation techniques by cone-beam computed tomography (CBCT). METHODS A total of 39 s primary molar teeth were selected with a minimum of two-thirds of the entire root length. Access cavity was prepared and preliminary CBCT images were taken and viewed by Romexis programme. The wall thickness of the canal was measured in the danger zone at two axial cut sections of 1 and 2 mm below furcation. Then, the teeth were instrumented with three different methods as manual K-files (size 15-30), Gates glidden burs (in decreasing order of size #2 and #1 followed by hand k-files up to file number 25), and ProTaper rotary files. After canal preparation, the specimens were placed in the same position, and the canal wall thickness was remeasured. Data were analysed by using one-way ANOVA and Kruskal-Wallis tests (α = 0.05). RESULTS The amounts of removed dentin thickness was not significantly different among the three groups at two axial cut sections of 1 mm and 2 mm below furcation (P = 0.27 and 0.17, respectively). CONCLUSION Within the limitations of this study, the three instrumentation techniques used in primary molars were comparable regarding the amount of dentin removal.
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Apical Extrusion of Debris During Root Canal Preparation With Different Brands of ProTaper System. JOURNAL OF RESEARCH IN DENTAL AND MAXILLOFACIAL SCIENCES 2021. [DOI: 10.52547/jrdms.6.4.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Vankayala B, Anantula K, Saladi H, Gudugunta L, Basavarajaiah JM, Yadav SS. Comparative evaluation of apical bacterial extrusion following root canal instrumentation using different endodontic file systems: An in vitro study. J Conserv Dent 2020; 22:559-563. [PMID: 33088065 PMCID: PMC7542070 DOI: 10.4103/jcd.jcd_221_19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 04/04/2020] [Accepted: 07/04/2020] [Indexed: 11/17/2022] Open
Abstract
Aim: This study aims to evaluate the amount of apical extrusion of bacteria during root canal instrumentation using K3XF, Protaper Gold, Edge taper platinum, and Hyflex CM Rotary systems. Materials and Methods: Sixty freshly extracted maxillary incisors teeth collected in saline. Access cavity prepared and canals were made free of bacterial and pulp. The teeth were mounted on the bacteria collecting apparatus. Root canals were contaminated with the Fusobacterium Nucleatum (ATCC25586) and dried at 37°C for 24 h. In Group 1 (Control group): No instrumentation was done and biomechanical preparation done in all other groups with Group 2: Hand K-files, Group 3: Protaper gold, Group 4: K3XF, Group 5: Edge taper platinum, and Group 6: Hyflex CM rotary file systems. Then, the extrude was collected, and it is incubated in Mueller-Hinton agar for 24 h and the number of colony forming units were counted and statistical comparison was done using Kruskal–Wallis test and Mann–Whitney U test. Results: Hand K-files extruded more bacteria when compared to other four rotary systems, K3XF file system extruded least number of bacteria. Conclusion: All instrumentation techniques extruded intracanal bacteria apically. However, engine-driven nickel-titanium instruments extruded less bacteria than the manual technique. The K3XF rotary file system comparatively extruded less bacteria than other rotary file systems.
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Affiliation(s)
- Bhavana Vankayala
- Department of Conservative Dentistry and Endodontics, Government Dental College and Hospital, Hyderabad, Telangana, India
| | - Kavitha Anantula
- Department of Conservative Dentistry and Endodontics, Government Dental College and Hospital, Hyderabad, Telangana, India
| | - Harikrishna Saladi
- Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India
| | - Leneena Gudugunta
- Department of Conservative Dentistry and Endodontics, AIMST University, Bedong, Kedah, Malaysia
| | | | - Sarjeev Singh Yadav
- Department of Conservative Dentistry and Endodontics, Government Dental College and Hospital, Hyderabad, Telangana, India
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Ozlek E, Neelakantan P, Khan K, Cheung GSP, Rossi-Fedele G. Debris extrusion during root canal preparation with nickel-titanium instruments using liquid and gel formulations of sodium hypochlorite in vitro. AUST ENDOD J 2020; 47:130-136. [PMID: 32748569 DOI: 10.1111/aej.12424] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 11/30/2022]
Abstract
This study compared the amount of apically extruded debris during root canal preparation with three single-file systems using liquid and gel-based formulations of sodium hypochlorite (NaOCl) or distilled water. Seventy-two single-canalled roots were divided into three groups: HyFlex EDM (Coltene-Whaledent); Reciproc Blue (VDW); and F-One Blue (Shanghai Fanta) and then divided into three subgroups: NaOCl liquid (Imicrly), NaOCl gel (Cerkamed Medical) and distilled water. The amount of extruded debris was calculated by determining the dry weight of the debris collected. Data were analysed using Kruskal-Wallis test with Bonferroni correction. Debris extrusion occurred in all subgroups. Both the instrument and the irrigant had an impact. The F-One Blue tended to extrude the least debris, though no significant difference was observed in the pairwise comparisons between instruments. NaOCl liquid resulted in significantly more extruded debris than NaOCl gel or distilled water. The results lead us to conclude that the NaOCl gel reduced debris extrusion compared to NaOCl liquid.
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Affiliation(s)
- Esin Ozlek
- Department of Endodontics, Faculty of Dentistry, The University of Van Yuzuncu Yil, Van, Turkey
| | - Prasanna Neelakantan
- Discipline of Endodontology, Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, Hong Kong
| | - Khadija Khan
- Discipline of Endodontology, Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, Hong Kong
| | - Gary S P Cheung
- Discipline of Endodontology, Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, Hong Kong
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Alves FR, Paiva PL, Marceliano-Alves MF, Cabreira LJ, Lima KC, Siqueira JF, Rôças IN, Provenzano JC. Bacteria and Hard Tissue Debris Extrusion and Intracanal Bacterial Reduction Promoted by XP-endo Shaper and Reciproc Instruments. J Endod 2018; 44:1173-1178. [DOI: 10.1016/j.joen.2018.04.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 03/29/2018] [Accepted: 04/04/2018] [Indexed: 01/29/2023]
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Centenaro CF, Grecca FS, Kopper PMP, Vivan RR, Pereira JR, Rosa RAD, da Silva PB, Só MVR. NiTi loss on the dentinal walls and instrument deformation during root canal preparation. Microsc Res Tech 2018; 81:897-901. [DOI: 10.1002/jemt.23053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 04/09/2018] [Accepted: 04/24/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Carolina Fabiana Centenaro
- Department of Conservative Dentistry, School of Dentistry; Federal University of Rio Grande do Sul (UFRGS); Porto Alegre - RS Brazil
| | - Fabiana Soares Grecca
- Department of Conservative Dentistry, School of Dentistry; Federal University of Rio Grande do Sul (UFRGS); Porto Alegre - RS Brazil
| | - Patrícia Maria Poli Kopper
- Department of Conservative Dentistry, School of Dentistry; Federal University of Rio Grande do Sul (UFRGS); Porto Alegre - RS Brazil
| | - Rodrigo Ricci Vivan
- Department of Operative Dentistry, Dental Materials and Endodontics, School of Dentistry; University of São Paulo (USP); São Paulo Brazil
| | - Jefferson Ricardo Pereira
- Department of Prosthodontics, School of Dentistry; University of Southern Santa Catarina (UNISUL); Brazil
| | - Ricardo Abreu da Rosa
- Department of Conservative Dentistry, School of Dentistry; Federal University of Rio Grande do Sul (UFRGS); Porto Alegre - RS Brazil
| | - Paula Barcellos da Silva
- Department of Conservative Dentistry, School of Dentistry; Federal University of Rio Grande do Sul (UFRGS); Porto Alegre - RS Brazil
| | - Marcus Vinícius Reis Só
- Department of Conservative Dentistry, School of Dentistry; Federal University of Rio Grande do Sul (UFRGS); Porto Alegre - RS Brazil
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de Souza LC, Yadlapati M, Lopes HP, Silva R, Letra A, Elias CN. Physico-chemical and Biological Properties of a New Portland Cement-based Root Repair Material. Eur Endod J 2018; 3. [PMID: 32161854 PMCID: PMC7024724 DOI: 10.5152/eej.2017.17018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVE To propose bismuth carbonate, a radiopacifying agent, as a new endodontic root repair material that was added to Portland cement (PC) at 2 wt%, 5 wt%, 10 wt% and 15 wt%, and physicochemical and biological properties of each formulation were evaluated in comparison to MTA-Angelus. METHODS Mixed and powder samples were analysed by scanning electron microscopy (SEM) and X-ray power diffraction (XRD), and the semiquantitative constitution of the powder was determined by energy-dispersive spectrometer (EDS). Setting time was evaluated by Vicat needle and radiopacity analysed with digital X-ray. The pH of all tested materials was observed after immersion in water for 3, 24, 48, 72 and 168 h (or 7 days). Solubility and calcium release were measured after immersion in water for 24 h. A multiparametric assay XTT-NR-CVDE was used to evaluate the cytotoxicity of the materials in human periodontal ligament (HPDL) fibroblasts. HPDL fibroblasts were exposed to PC 15% and mineral trioxide aggregate (MTA), and the expression of proinflammatory cytokines (IL1A, IL6, IL8, TNF) and bone formation genes (ALP, COL1, RUNX2) was evaluated by real-time PCR. Mineralisation of HPDL fibroblasts cocultured with PC, PC 15% and MTA was evaluated with Von Kossa staining. RESULTS PC-based groups presented more irregular and larger particles than MTA. PC and MTA showed similarities as observed by XRD and EDS. Setting time of PC-based groups was increased with the addition of bismuth carbonate. All tested materials were alkaline, and pH tended to reduce over time. All cements had solubility lower than recommended, with no difference between them (P>0.05) and showed calcium release. PC 15% had similar radiopacity when compared with MTA (P>0.05). Cell viability was higher for the tested materials than the positive control (P<0.001), but there was no difference when they were compared with negative control (P>0.05). Gene expression levels were similar for all tested groups (P>0.05). Analysed cements had positive Von Kossa staining. CONCLUSION Overall, the addition of 15% of bismuth carbonate did not result in significant changes to its physicochemical and biological properties when compared with MTA, except for the setting time, and may be considered a potential substitute for MTA.
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Affiliation(s)
- Letícia Chaves de Souza
- Department of Materials Science, Military Institute of Engineering, Rio de Janeiro, RJ, Brazil
- School of Dentistry, University of Texas Health Science Center at Houston, TX, USA
| | - Mamatha Yadlapati
- School of Dentistry, University of Texas Health Science Center at Houston, TX, USA
| | - Hélio Pereira Lopes
- Department of Endodontics, Estácio de Sá University, Rio de Janeiro, RJ, Brazil
| | - Renato Silva
- School of Dentistry, University of Texas Health Science Center at Houston, TX, USA
| | - Ariadne Letra
- School of Dentistry, University of Texas Health Science Center at Houston, TX, USA
| | - Carlos Nelson Elias
- Department of Materials Science, Military Institute of Engineering, Rio de Janeiro, RJ, Brazil
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The Effect of Root Canal Preparation Using Single Versus Multiple Endodontic Rotary Files on Post-operative Pain, a Randomised Clinical Trial. Eur Endod J 2017; 2:1-5. [PMID: 33403334 PMCID: PMC7757951 DOI: 10.14744/eej.2017.17018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 04/10/2017] [Accepted: 05/16/2017] [Indexed: 11/29/2022] Open
Abstract
Objective: The purpose of this randomised clinical trial study was to compare the incidence and intensity of post-operative pain following the use of single-file and multi-file rotary instruments with continuous rotational motion for root canal preparation in asymptomatic permanent human teeth. Methods: A total of 105 healthy consenting patients who fulfilled specific inclusion criteria and had premolar or molar teeth diagnosed with asymptomatic irreversible pulpitis without periapical pathosis requiring endodontic treatment participated in this study. The patients were randomly allocated by stratification into five groups of 21 according to the instruments and systems used for root canal preparation: (a) Neoniti A1 (#25) single file, (b) RaCe #25/.06 single file, (c) Mtwo #25/.06 single file, (d) Easy RaCe, (e) and Mtwo multifile. Endodontic treatment was carried out in a single appointment. The severity of post-operative pain was assessed by numerical rating scale scores until complete pain relief was achieved. Analgesic consumption and the incidence of pain were also evaluated. Data were analysed by one-way ANOVA and Tukey HSD tests. Results: When comparing different instruments and systems for canal preparation, the analgesic consumption, incidence and intensity of post-operative pain did not differ (p>0.05). The highest levels of post-operative pain were experienced after 6 h in all groups. Conclusion: The post-operative pain did not differ between the single and multi-file root canal preparation techniques evaluated in this study.
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Saberi E, Zahedani SS, Ebrahimipour S. Apical Extrusion of Intracanal Bacteria with Single File and Multifile Rotary Instrumentation Systems. J Int Soc Prev Community Dent 2017; 7:292-296. [PMID: 29026702 PMCID: PMC5629858 DOI: 10.4103/jispcd.jispcd_199_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 08/24/2017] [Indexed: 11/09/2022] Open
Abstract
Aims and Objectives: Instrumentation techniques may cause extrusion of microorganisms and their products into the periapical region resulting inflammation and treatment failure. The aim of this ex vivo study was comparing the apical bacterial extrusion in canals prepared with single file versus multiple file rotary systems. Materials and Methods: Ninety-two human single-rooted mandibular first premolars were used. Endodontic access cavities were prepared, and root canals were contaminated with an Enterococcus faecalis (E. faecalis) suspension. The samples were incubated at 37°C for 30 days; the contaminated teeth were divided into four groups of 20 specimens each (1: Reciproc, 2: Mtwo, 3: Neoniti A1, 4: Safesider). Six teeth were not infected and each were prepared with one of the above instruments were considered as negative and six teeth which had been previously infected, were used as positive control groups. Extruded bacteria from the apical foramen during instrumentation were collected into vials containing 0.9% NaCl. The microbial samples were taken from the vials and incubated in brain heart agar medium for 24 h. The resulting bacterial titer, in colony-forming units per mL, was determined. The data entered into SPSS 18 software and were analyzed by Kruskal–Wallis and Mann–Whitney U-tests at 0.05 significance level. Results: Mtwo multifile system showed significantly less bacterial extrusion than Safesider (P = 0.015) and Neoniti A1 (P = 0.042) but did not show significant difference with Reciproc system (P = 0.25). Conclusions: All instrumentation systems extruded bacteria beyond the apical foramen. However, this study showed that Mtwo multifile rotary system extruded fewer bacteria.
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Affiliation(s)
- Eshaghali Saberi
- Department of Endodontics, Oral and Dental Diseases Research Center, Dental School, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Shahram Shahraki Zahedani
- Infectious Diseases and Tropical Medicine Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Sediqe Ebrahimipour
- Department of Endodontics, Faculty of Dentistry and Dental Research Center, Birjand University of Medical Sciences, Birjand, Iran
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Effect of root canal preparation techniques on chlorhexidine substantivity on human dentin: a chemical analysis. Clin Oral Investig 2017; 22:859-865. [DOI: 10.1007/s00784-017-2162-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 06/23/2017] [Indexed: 12/26/2022]
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Harandi A, Mohammadpour Maleki F, Moudi E, Ehsani M, Khafri S. CBCT Assessment of Root Dentine Removal by Gates-Glidden Drills and Two Engine-Driven Root Preparation Systems. IRANIAN ENDODONTIC JOURNAL 2017; 12:29-33. [PMID: 28179920 PMCID: PMC5282375 DOI: 10.22037/iej.2017.06] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Introduction: The aim of this study was to compare the dentine removing efficacy of Gates-Glidden drills with hand files, ProTaper and OneShape single-instrument system using cone-beam computed tomography (CBCT). Methods and Materials: A total of 39 extracted bifurcated maxillary first premolars were divided into 3 groups (n=13) and were prepared using either Gates-Glidden drills and hand instruments, ProTaper and OneShape systems. Pre- and post-instrumentation CBCT images were obtained. The dentin thickness of canals was measured at furcation, and 1 and 2 mm from the furcation area in buccal, palatal, mesial and distal walls. Data were analyzed using one-way ANOVA test. Tukey’s post hoc tests were used for two-by-two comparisons. Results: Gates-Glidden drills with hand files removed significantly more (P<0.001) dentine than the engine-driven systems in all canal walls (buccal, palatal, mesial and distal). There were no significant differences between OneShape and ProTaper rotary systems (P>0.05). Conclusion: The total cervical dentine removal during canal instrumentation was significantly less with engine-driven file systems compared to Gates-Glidden drills. There were no significant differences between residual dentine thicknesses left between the various canal walls.
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Affiliation(s)
- Azade Harandi
- Dental Material Research Center, Department of Endodontics, Dental School, Babol University of Medical Sciences, Babol, Iran
| | | | - Ehsan Moudi
- Dental Material Research Center, Department of Radiology, Dental School, Babol University of Medical Sciences, Babol, Iran
| | - Maryam Ehsani
- Dental Material Research Center, Department of Endodontics, Dental School, Babol University of Medical Sciences, Babol, Iran
| | - Soraya Khafri
- Department of Social Medicine and Health, Dental School, Babol University of Medical Sciences, Babol, Iran
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Cecchin D, Farina AP, Bedran-Russo AK. The effects of endodontic substances and naturally reducing agents on the bond strength of epoxy resin-based sealer to root dentin. J Conserv Dent 2017; 20:302-306. [PMID: 29386775 PMCID: PMC5767822 DOI: 10.4103/jcd.jcd_400_16] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Aim: To evaluate the effects of sodium hypochlorite (NaOCl), chlorhexidine (CHX), and two naturally derived reducing agents on the bond strength of epoxy resin-based sealer to root dentin. Materials and Methods: A total of 60 single-rooted human teeth were prepared using ProTaper (Dentsply Tulsa Dental Specialties, Johnson City, TN, USA) and an irrigation protocol including 5% NaOCl or 2% CHX gel, and ethylenediaminetetraacetic acid (EDTA), for smear layer removal. The following subgroups (n = 10) were also assessed according to the naturally derived reducing agent used: no agent (control group); grape seed extract (GSE); and green tea. Root canals were filled with gutta-percha and AH Plus (Dentsply DeTrey, Konstanz, Germany). Bond strength was measured using the push-out test, and statistical analyses were performed using ANOVA; failure patterns (modes) were classified as adhesive, cohesive, or mixed. The types of failure modes were evaluated using the Chi-squared test at α =0.05. Results: The irrigation protocols demonstrated similar bond strength values (P > 0.05). However, the Chi-squared test revealed significant differences in failure mode among the groups (P < 0.05). An increase in the incidence of adhesive failures was observed for the NaOCl and EDTA groups. The other groups demonstrated a prevalence of mixed and cohesive failures. Conclusion: The irrigation protocols and use of naturally derived reducing agents had no effect on the bond strength of the resin-based sealer to dentin; however, improvement was evident in the adhesion quality of AH Plus to NaOCl-treated root dentin, due to the prevalence of cohesive failure.
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Affiliation(s)
- Doglas Cecchin
- Department of Restorative Dentistry, College of Dentistry, University of Passo Fundo, Passo Fundo, RS, Brazil.,Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA
| | - Ana Paula Farina
- Department of Restorative Dentistry, College of Dentistry, University of Passo Fundo, Passo Fundo, RS, Brazil.,Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA
| | - Ana Karina Bedran-Russo
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA
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Western JS, Dicksit DD. Apical extrusion of debris in four different endodontic instrumentation systems: A meta-analysis. J Conserv Dent 2017; 20:30-36. [PMID: 28761250 PMCID: PMC5514807 DOI: 10.4103/0972-0707.209066] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND All endodontic instrumentation systems tested so far, promote apical extrusion of debris, which is one of the main causes of postoperative pain, flare ups, and delayed healing. OBJECTIVES Of this meta-analysis was to collect and analyze in vitro studies quantifying apically extruded debris while using Hand ProTaper (manual), ProTaper Universal (rotary), Wave One (reciprocating), and self-adjusting file (SAF; vibratory) endodontic instrumentation systems and to determine methods which produced lesser extrusion of debris apically. METHODOLOGY An extensive electronic database search was done in PubMed, Scopus, Cochrane, LILACS, and Google Scholar from inception until February 2016 using the key terms "Apical Debris Extrusion, extruded material, and manual/rotary/reciprocating/SAF systems." A systematic search strategy was followed to extract 12 potential articles from a total of 1352 articles. The overall effect size was calculated from the raw mean difference of weight of apically extruded debris. RESULTS Statistically significant difference was seen in the following comparisons: SAF < Wave One, SAF < Rotary ProTaper. CONCLUSIONS Apical extrusion of debris was invariably present in all the instrumentation systems analyzed. SAF system seemed to be periapical tissue friendly as it caused reduced apical extrusion compared to Rotary ProTaper and Wave One.
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Affiliation(s)
- J Sylvia Western
- Faculty of Dentistry, SEGi University, No. 9, Jalan Teknologi, Kota Damansara, PJU5, Selangor, Malaysia
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Zan R, Tunç T, Hubbezoğlu İ, Sümer Z. Apical extrusion of intracanal biofilm using ProTaper Gold, WaveOne Gold,Twisted File Adaptive, OneShape New Generation and K3XF. Eur Endod J 2016; 1:1-6. [PMID: 32566898 PMCID: PMC7299055 DOI: 10.5152/eej.2016.16017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 07/29/2016] [Accepted: 09/13/2016] [Indexed: 11/22/2022] Open
Abstract
Objective: To evaluate the bacterial extrusion during instrumentation with different nickel titanium (NiTi) engine-driven instruments. Methods: Ninety extracted single-canal human mandibular incisor teeth were inoculated with Enterococcus faecalis to obtain biofilm formation and were randomly divided to 6 groups (n=15). One group served as the control and was not instrumented; the other groups were prepared with ProTaper Gold (PTG; Dentsply Maillefer, Ballaigues, Switzerland), WaveOne Gold (WOG; Dentsply Maillefer), Twisted File Adaptive (TFA; SybronEndo, Orange, CA, USA), One Shape New Generation (OSNG; MicroMega, Besancon, France), and K3XF (SybronEndo) instruments. Bacteria extruded beyond the apical foramen were quantified in colony-forming units per milliliter. The number of colony-forming units in the remaining biofilm was determined for each sample. Data were analyzed using the one-way analysis of variance (ANOVA) and Tukey post-hoc tests. Results: All NiTi instruments resulted in different quantities of bacterial extrusion. The TFA group caused most bacterial extrusion (P<0.05). The PTG and WOG groups caused less bacterial extrusion than the OSNG and K3XF groups (P<0.05), but there was no statistically significant difference between the PTG and WOG groups (P>0.05). Conclusion: PTG and WOG are preferable system in terms of successful endodontic treatments. The amount of bacterial extrusion is associated with the metallurgy and design of the instrument used.
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Affiliation(s)
- Recai Zan
- Department of Endodontics, Cumhuriyet University School of Dentistry, Sivas, Turkey
| | - Tutku Tunç
- Department of Pharmaceutical Microbiology, Cumhuriyet University School of Pharmacy, Sivas, Turkey
| | - İhsan Hubbezoğlu
- Department of Restorative Dentistry, Cumhuriyet University School of Dentistry, Sivas, Turkey
| | - Zeynep Sümer
- Department of Microbiology, Cumhuriyet University School of Microbiology, Sivas,Turkey
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