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Impact of Different Access Cavity Designs and Ni–Ti Files on the Elimination of Enterococcus faecalis from the Root Canal System: An In Vitro Study. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12042049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The present research aimed to reveal the in vitro effects of different endodontic file systems utilizing different endodontic access cavity designs on the elimination of Enterococcus faecalis from root canal systems. One hundred and fifty mandibular molar teeth were separated into three groups with respect to the access cavity design: traditional endodontic cavity (TEC), conservative endodontic cavity (CEC), and truss access cavity (TAC) (n = 50). After access cavity preparation, inolulation of teeth with E. faecalis was undertaken for 21 days. Following the first sampling (S1), further division of the groups into five subgroups (n = 10) was performed: ProTaper Gold, 2Shape, TruNatomy, Reciproc Blue, and WaveOne Gold. After instrumentation, bacterial sampling (S2) was performed. Bacterial reduction was evaluated in colony-forming units/mL, and statistical analysis was carried out. The E. faecalis count decreased significantly in all groups (p < 0.05). The range of mean values for a decrease in E. faecalis in log numbers was lowest in the TAC and Reciproc Blue groups, while the highest values of bacterial reduction were detected in the TEC and ProTaper Gold groups. The highest level of antibacterial action was obtained with the use of ProTaper Gold compared to the other file systems tested.
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Siddique R, Nivedhitha MS, Ranjan M, Jacob B, Solete P. Comparison of antibacterial effectiveness of three rotary file system with different geometry in infected root canals before and after instrumentation-a double-blinded randomized controlled clinical trial. BDJ Open 2020; 6:8. [PMID: 32550007 PMCID: PMC7280230 DOI: 10.1038/s41405-020-0035-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 03/12/2020] [Accepted: 03/22/2020] [Indexed: 01/13/2023] Open
Abstract
Introduction To compare the antibacterial effectiveness of three rotary file systems i.e., ProTaper Next, ProTaper Gold and XP-endo Shaper in root canals of teeth with asymptomatic apical periodontitis by using the real-time polymerase chain reaction. Materials and methods Root canals from single or multi-rooted teeth (straight canals) with necrotic pulps and asymptomatic apical periodontitis were instrumented using either ProTaper Next (n = 20), ProTaper Gold (n = 20) and XP-endo Shaper (n = 20) under irrigation with 3% sodium hypochlorite. Samples obtained before and after instrumentation were subjected to DNA extraction, amplification and quantitation of total amount of bacteria by using the real-time polymerase chain reaction. Results Samples were taken before preparation (S1) were positive for presence of bacteria, with mean numbers of 9.94 × 107, 20.4 × 107 and 9.20 × 107 bacterial cells for the ProTaper Next, ProTaper Gold and XP-endo Shaper groups, respectively. After preparation (S2) with ProTaper Next, ProTaper Gold, and XP-endo Shaper, root canals still had bacteria with mean counts of 11.8 × 105, 87.2 × 105 and 4.52 × 105 bacterial cells, respectively. Both XP-endo Shaper (99.50%) and ProTaper Next (98.81%) were effective in reducing total bacterial count, and there was no statistically significant difference between them (P > 0.05). XP-endo Shaper succeeded in reducing total bacterial count than ProTaper Gold (95.72%) and there exists statistically significant difference between them (P < 0.05). Conclusions XP-endo Shaper was highly effective in reducing total bacterial count from root canals of teeth with asymptomatic apical periodontitis than ProTaper Gold. ProTaper Next also showed improved microbial reduction percentage as compared with ProTaper Gold.
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Affiliation(s)
- Riluwan Siddique
- Saveetha Dental College, Poonamalle High Road, Chennai, Tamil Nadu 600056 India
| | | | - Manish Ranjan
- Saveetha Dental College, Poonamalle High Road, Chennai, Tamil Nadu 600056 India
| | - Benoy Jacob
- Saveetha Dental College, Poonamalle High Road, Chennai, Tamil Nadu 600056 India
| | - Pradeep Solete
- Saveetha Dental College, Poonamalle High Road, Chennai, Tamil Nadu 600056 India
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Machado CAD, Souza ACA, Loureiro C, Martinho FC, Cintra LTÂ, Dezan Junior E, Jacinto RDC. Comparison of two rotary systems in bacteria/lps removal from endodontic infections: randomized clinical trial. Braz Oral Res 2019; 33:e039. [DOI: 10.1590/1807-3107bor-2019.vol33.0039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 04/16/2019] [Indexed: 11/21/2022] Open
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Machado MEDL, Nabeshima CK, Caballero-Flores H, Elmadjian-Filho M, Duarte MAH, Odinola-Zapata R, Cai S. Instrument Design May Influence Bacterial Reduction During Root Canal Preparation. Braz Dent J 2018; 28:587-591. [PMID: 29215683 DOI: 10.1590/0103-6440201701506] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 06/20/2017] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to evaluate the bacterial reduction promoted by ProTaper Next and Twisted File by comparing to ProTaper Universal and manual technique. Sixty distobuccal root canals of maxillary molars sterilized with ethylene oxide were contaminated with Enterococcus faecalis broth culture. After incubation for 21 days, bacterial samples were collected and cultured on m-Enterococcus agar plates. The root canals were divided into 4 groups, according to the system used for instrumentation: ProTaper Next, Twisted File, ProTaper Universal, and crown down manual technique. Other 8 uncontaminated root canals were control asepsis. Bacterial samples were collected immediately and 7 days after instrumentation. The bacterial reduction was calculated and then made intragroup analysis by paired t-test and intergroup analysis by ANOVA and Tukey tests, all at 5% significance. All techniques significantly reduced the bacterial number in the root canal (p<0.05). ProTaper Next and Twisted File resulted in more bacterial reduction than ProTaper Universal and manual technique (p<0.05). ProTaper Next and Twisted File were similar (p>0.05). It can be concluded that ProTaper Next and Twisted File promote a higher bacterial reduction than Protaper Universal and manual technique.
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Affiliation(s)
| | - Cleber Keiti Nabeshima
- Department of Restorative Dentistry, School of Dentistry, USP - Universidade de São Paulo, São Paulo, SP, Brazil
| | - Hector Caballero-Flores
- Department of Restorative Dentistry, School of Dentistry, USP - Universidade de São Paulo, São Paulo, SP, Brazil
| | - Moyzés Elmadjian-Filho
- Department of Restorative Dentistry, School of Dentistry, USP - Universidade de São Paulo, São Paulo, SP, Brazil
| | | | - Ronald Odinola-Zapata
- Department of Endodontics, Bauru School of Dentistry, USP - Universidade de São Paulo, Bauru, SP, Brazil
| | - Silvana Cai
- Derpartment of Microbiology, Institute of Biological Science, USP - Universidade de São Paulo, São Paulo, SP, Brazil
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Guillén RE, Nabeshima CK, Caballero-Flores H, Cayón MR, Mercadé M, Cai S, Machado MEDL. Evaluation of the WaveOne Gold and One Shape New Generation in Reducing Enterococcus faecalis from Root Canal. Braz Dent J 2018; 29:249-253. [PMID: 29972450 DOI: 10.1590/0103-6440201801910] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 03/01/2018] [Indexed: 01/22/2023] Open
Abstract
The aim of this study was to evaluate the WaveOne Gold and One Shape New Generation systems regarding the bacterial removal from root canals infected with Enterococcus faecalis by comparing them to the conventional WaveOne and One Shape systems. Forty-eight distobuccal root canals of maxillary molars sterilized with ethylene oxide were infected with E. faecalis for 21 days, and then root canal initial bacterial sample was collected with paper cones and plated on M-enterococcus agar. The specimens were randomly divided into 4 groups according to the instrumentation: WaveOne Gold, One Shape New Generation, WaveOne and One Shape. After instrumentation, samples were collected with use of scraping and paper cones at immediate and 7 days after instrumentation. The bacterial reduction was calculated and then made intragroup analysis by Friedman test and intergroup analysis by Kruskal-Wallis with Dunn's post-hoc test, all at 5% significance. All techniques significantly reduced the number of bacteria in the root canal (p<0.05). WaveOne Gold and One Shape New Generation promoted higher bacterial reduction than WaveOne and One Shape systems (p<0.05), but no significant difference was found between WaveOne Gold and One Shape New Generation or between WaveOne and One Shape (p>0.05). Novel single-file systems promote better bacterial removal than the conventional single-file systems.
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Affiliation(s)
- Raquel Esmeralda Guillén
- Department of Restorative Dentistry, School of Dentistry, USP - Universidade de São Paulo, São Paulo, SP, Brazil
| | - Cleber Keiti Nabeshima
- Department of Restorative Dentistry, School of Dentistry, USP - Universidade de São Paulo, São Paulo, SP, Brazil
| | - Hector Caballero-Flores
- Department of Restorative Dentistry, School of Dentistry, USP - Universidade de São Paulo, São Paulo, SP, Brazil
| | - Miguel Roig Cayón
- Department of Restorative Dentistry, Universitat Internacional de Catalunya, Barcelona, CT, Spain
| | - Montse Mercadé
- Department of Dentistry, Universitat de Barcelona, Barcelona, CT, Spain
| | - Silvana Cai
- Derpartment of Microbiology, Institute of Biological Science, USP - Universidade de São Paulo, São Paulo, SP, Brazil
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Holland R, Gomes JE, Cintra LTA, Queiroz ÍODA, Estrela C. Factors affecting the periapical healing process of endodontically treated teeth. J Appl Oral Sci 2017; 25:465-476. [PMID: 29069143 PMCID: PMC5804382 DOI: 10.1590/1678-7757-2016-0464] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 03/11/2017] [Indexed: 12/20/2022] Open
Abstract
Tissue repair is an essential process that reestablishes tissue integrity and regular function. Nevertheless, different therapeutic factors and clinical conditions may interfere in this process of periapical healing. This review aims to discuss the important therapeutic factors associated with the clinical protocol used during root canal treatment and to highlight the systemic conditions associated with the periapical healing process of endodontically treated teeth. The antibacterial strategies indicated in the conventional treatment of an inflamed and infected pulp and the modulation of the host's immune response may assist in tissue repair, if wound healing has been hindered by infection. Systemic conditions, such as diabetes mellitus and hypertension, can also inhibit wound healing. The success of root canal treatment is affected by the correct choice of clinical protocol. These factors are dependent on the sanitization process (instrumentation, irrigant solution, irrigating strategies, and intracanal dressing), the apical limit of the root canal preparation and obturation, and the quality of the sealer. The challenges affecting the healing process of endodontically treated teeth include control of the inflammation of pulp or infectious processes and simultaneous neutralization of unpredictable provocations to the periapical tissue. Along with these factors, one must understand the local and general clinical conditions (systemic health of the patient) that affect the outcome of root canal treatment prediction.
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Affiliation(s)
- Roberto Holland
- Universidade Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Odontologia Restauradora, Araçatuba, SP, Brasil
| | - João Eduardo Gomes
- Universidade Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Odontologia Restauradora, Araçatuba, SP, Brasil
| | - Luciano Tavares Angelo Cintra
- Universidade Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Odontologia Restauradora, Araçatuba, SP, Brasil
| | - Índia Olinta de Azevedo Queiroz
- Universidade Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Odontologia Restauradora, Araçatuba, SP, Brasil
| | - Carlos Estrela
- Universidade Federal de Goiás, Faculdade de Odontologia, Departamento de Ciências Estomatológicas, Goiânia, GO, Brasil
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Krokidis A, Bonfanti C, Cerutti A, Barabanti N, Zinelis S, Panopoulos P. Comparative analysis of SAF, Protaper Next and BT-Race in eliminating Enterococcus faecalis
from long oval canals: An ex vivo
study. AUST ENDOD J 2016; 43:110-114. [DOI: 10.1111/aej.12177] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Andreas Krokidis
- Department of Endodontics; School of Dentistry; National and Kapodistrian University of Athens; Athens Greece
| | - Carlo Bonfanti
- Laboratory of Microbiology; School of Medicine; University of Brescia; Brescia Italy
| | - Antonio Cerutti
- Department of Restorative Dentistry; School of Dentistry; University of Brescia; Brescia Italy
| | - Nicola Barabanti
- Department of Restorative Dentistry; School of Dentistry; University of Brescia; Brescia Italy
| | - Spyros Zinelis
- Department of Biomaterials; School of Dentistry; National and Kapodistrian University of Athens; Athens Greece
| | - Panos Panopoulos
- Department of Endodontics; School of Dentistry; National and Kapodistrian University of Athens; Athens Greece
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