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Hernández-Venegas PA, Martínez-Martínez RE, Zaragoza-Contreras EA, Domínguez-Pérez RA, Reyes-López SY, Donohue-Cornejo A, Cuevas-González JC, Molina-Frechero N, Espinosa-Cristóbal LF. Bactericidal Activity of Silver Nanoparticles on Oral Biofilms Related to Patients with and without Periodontal Disease. J Funct Biomater 2023; 14:311. [PMID: 37367275 DOI: 10.3390/jfb14060311] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/24/2023] [Accepted: 05/30/2023] [Indexed: 06/28/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Periodontal disease (PD) is a multifactorial oral disease regularly caused by bacterial biofilms. Silver nanoparticles (AgNP) have offered good antimicrobial activity; moreover, there is no available scientific information related to their antimicrobial effects in biofilms from patients with PD. This study reports the bactericidal activity of AgNP against oral biofilms related to PD. MATERIALS AND METHODS AgNP of two average particle sizes were prepared and characterized. Sixty biofilms were collected from patients with (30 subjects) and without PD (30 subjects). Minimal inhibitory concentrations of AgNP were calculated and the distribution of bacterial species was defined by polymerase chain reaction. RESULTS Well-dispersed sizes of AgNP were obtained (5.4 ± 1.3 and 17.5 ± 3.4 nm) with an adequate electrical stability (-38.2 ± 5.8 and -32.6 ± 5.4 mV, respectively). AgNP showed antimicrobial activities for all oral samples; however, the smaller AgNP had significantly the most increased bactericidal effects (71.7 ± 39.1 µg/mL). The most resistant bacteria were found in biofilms from PD subjects (p < 0.05). P. gingivalis, T. denticola, and T. forsythia were present in all PD biofilms (100%). CONCLUSIONS The AgNP showed efficient bactericidal properties as an alternative therapy for the control or progression of PD.
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Affiliation(s)
- Perla Alejandra Hernández-Venegas
- Chemical Biological Department, Institute of Biomedical Sciences, Autonomous University of Juarez City (UACJ), Envolvente del PRONAF and Estocolmo s/n, Ciudad Juárez 32310, Chihuahua, Mexico
| | - Rita Elizabeth Martínez-Martínez
- Master Program in Advanced Dentistry, Faculty of Dentistry, Autonomous University of San Luis Potosi, Manuel Nava Avenue, Universitary Campus, San Luis Potosí 78290, San Luis Potosi, Mexico
| | - Erasto Armando Zaragoza-Contreras
- Department of Engineering and Materials Chemistry, Centro de Investigación en Materiales Avanzados, S. C., Miguel de Cervantes No. 120, Chihuahua 31109, Chihuahua, Mexico
| | - Rubén Abraham Domínguez-Pérez
- Laboratory of Multidisciplinary Dental Research, Faculty of Medicine, Autonomous University of Queretaro, Clavel Street, Prados de La Capilla, Santiago de Querétaro 76176, Queretaro, Mexico
| | - Simón Yobanny Reyes-López
- Institute of Biomedical Sciences, Autonomous University of Juarez City (UACJ), Envolvente del PRONAF and Estocolmo s/n, Ciudad Juárez 32310, Chihuahua, Mexico
| | - Alejandro Donohue-Cornejo
- Master Program in Dental Sciences, Stomatology Department, Institute of Biomedical Sciences, Autonomous University of Juarez City (UACJ), Envolvente del PRONAF and Estocolmo s/n, Ciudad Juárez 32310, Chihuahua, Mexico
| | - Juan Carlos Cuevas-González
- Master Program in Dental Sciences, Stomatology Department, Institute of Biomedical Sciences, Autonomous University of Juarez City (UACJ), Envolvente del PRONAF and Estocolmo s/n, Ciudad Juárez 32310, Chihuahua, Mexico
| | - Nelly Molina-Frechero
- Division of Biological and Health Sciences, Autonomous Metropolitan University Xochimilco (UAM), Mexico City 04960, Mexico
| | - León Francisco Espinosa-Cristóbal
- Master Program in Dental Sciences, Stomatology Department, Institute of Biomedical Sciences, Autonomous University of Juarez City (UACJ), Envolvente del PRONAF and Estocolmo s/n, Ciudad Juárez 32310, Chihuahua, Mexico
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2
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Zhang Y, Pan L, Fang Y, Wang X, Gu S. Inhibition effect of preservatives or disinfectants on
F. concentricum
from postharvest asparagus (
Asparagus officinalis
L.) spear in vitro and in vivo. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.16274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Yuanyuan Zhang
- School of Food Science and Biotechnology Zhejiang Gongshang University Hangzhou PR China
| | - Lixiu Pan
- School of Food Science and Biotechnology Zhejiang Gongshang University Hangzhou PR China
| | - Yonggang Fang
- School of Food Science and Biotechnology Zhejiang Gongshang University Hangzhou PR China
| | - Xiangyang Wang
- School of Food Science and Biotechnology Zhejiang Gongshang University Hangzhou PR China
| | - Shuang Gu
- School of Food Science and Biotechnology Zhejiang Gongshang University Hangzhou PR China
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3
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Singh P, Dey S, Pandey V, Abhas A, Sharan S, Kharat N. Antibacterial and Antifungal Efficacy of Platelet-Rich Fibrin and Platelet-Rich Fibrin Matrix against Root Canal Microflora. J Pharm Bioallied Sci 2021; 13:S124-S127. [PMID: 34447059 PMCID: PMC8375919 DOI: 10.4103/jpbs.jpbs_601_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 09/28/2020] [Indexed: 11/05/2022] Open
Abstract
Background: Binding of such proteins with a developing fibrin mesh or to the extracellular matrix has the ability to create chemotactic gradients aiding the recruitment of stem cells, thereby, stimulating cell migration and differentiation this may promotes repair and regeneration. There is a unique concept in platelet concentrates called platelet-rich fibrin matrix (PRFM) which is processed using higher attraction without the utilization of bovine thrombin. Aim and Objectives: The aim of this study is to evaluate the antibacterial and antifungal effects of platelet-rich fibrin (PRF) and PRFM against root canal microflora. Materials and Methods: Blood samples were taken from 20 adults, age ranging from 20 to 40 years who were systemically healthy, nonsmokers with no symptoms of infection, or on antibiotics at least 3 months before experiments. The procedures and the protocols involved in the study were accepted by the Institutional Ethical Committee. Written informed consent was obtained from the donors and patients. Approximately 10 ml of blood was collected from each donor. 5 ml of blood was used for the preparation of PRF and 5 ml for PRFM. Results: The antifungal scores among the groups. The highest antifungal scores were seen in metapex followed by PRF and PRFM group. Kruskal–Wallis test was applied to check the statistical difference among the groups, and there was a statistically significant difference seen among the groups (P = 0.00). The antibacterial scores among the groups. The highest antibacterial scores were seen in Metapex followed by PRF group and PRFM group Kruskal–Wallis test was applied to check the statistical difference among the groups, and there was a statistically significant difference seen among the groups. Conclusion: PRF demonstrated antibacterial activity against passage isolates but had no antifungal efficacy. This antibacterial property may be a valuable adjunct when using PRF for regenerative procedures in endodontics. Both PRF and PRFM have to be analyzed for antimicrobial properties for extended duration and various other clinical strains with larger sample size.
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Affiliation(s)
- Pinky Singh
- Department of Dentistry, Patna Medical College and Hospital, Patna, Bihar, India
| | - Subhra Dey
- Department of Conservative Dentistry and Endodontics, Narayan Swami Hospital and Dental College, Dehradun, Uttarakhand, India
| | - Vinisha Pandey
- Department of Conservative Dentistry and Endodontics, Maharana Pratap Dental College, Kanpur, Uttar Pradesh, India
| | - Arora Abhas
- Department of Public Health Dentistry, Dr. Rajesh Ramdasji Kambe Dental College and Hospital, Akola, Maharashtra, India
| | | | - Neetu Kharat
- Department of Conservative Dentistry and Endodontics, RKDF Dental College and Research Center, Bhopal, Madhya Pradesh, India
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4
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Nagaraja S, Mathew S, Jain N, Jethani B, Nambiar S, Kumari M, Nair S. Study of antibacterial and antifungal efficacy of platelet-rich fibrin and platelet-rich fibrin matrix. J Conserv Dent 2020; 22:415-419. [PMID: 33082654 PMCID: PMC7537747 DOI: 10.4103/jcd.jcd_100_19] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 03/09/2020] [Accepted: 06/04/2020] [Indexed: 11/16/2022] Open
Abstract
Background: Platelet concentrates are extensively utilized in the medical and dental field to promote tissue regeneration. The profusion of endogenous growth factors in platelets α-granules transmit their use for enhanced wound healing. However, little attention has been given to study their antimicrobial potential. This study was conducted to assess the antibacterial and antifungal property of platelet-rich fibrin (PRF) and PRF matrix (PRFM). Materials and Methodology: Blood samples were obtained from 16 participants, PRF and PRFM were processed as per the protocol prescribed by Choukroun et al. and Lucarelli et al., respectively. The susceptibility test against microbiota in the root canal and Candida albicans was assessed through minimum inhibition zone by agar diffusion technique. Results: PRF showed an effective antibacterial property, however, did not perform well against C. albicans strains. PRFM did not show any antibacterial or antifungal properties. Conclusions: The antibacterial efficacy of PRF may prove beneficial when used in the revascularization procedure of immature necrotic teeth.
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Affiliation(s)
- Shruthi Nagaraja
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
| | - Sylvia Mathew
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
| | - Namrata Jain
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
| | - Bhawna Jethani
- Department of Conservative Dentistry and Endodontics, Pacific Dental College and Hospital, Udaipur, Rajasthan, India
| | - Sharanya Nambiar
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
| | - Mohini Kumari
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
| | - Soumya Nair
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India
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Antifungal Effect of Silver Nitrate on Prosthodontic Dentures. BALKAN JOURNAL OF DENTAL MEDICINE 2020. [DOI: 10.2478/bjdm-2020-0016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Summary
Background/Aim: Although there are studies about the antimicrobial activity of silver, there is no study evaluating it as a denture disinfectant. The purpose of this study was to explore the effectiveness of 6 disinfectant solutions (50% vinegar, 100% vinegar, 1% silver nitrate, 2% silver nitrate, %1 sodium hypochlorite, 0,12% chlorhexidine digluconate) in the disinfection of acrylic resin specimens contaminated in vitro by Candida albicans, as measured by residual colony-forming unit (CFU).
Material and Methods: 66 pieces of 10mmx2mm acrylic resin disc samples were prepared and incubated in 1x106 cell/ml suspension of C. albicans ATCC 18804 for 24 h (one of them as a control, n=11/group). The specimens were then transferred into tubes containing 10 ml of the tested disinfectants and kept for 10 minutes in the disinfectant. After washing with saline, the specimens were vortexed to remove the microorganisms adhered to the surfaces. Colony counting of the collected microorganisms was performed on Sabouroud dextrose medium using 10−1, 10−2 and 10−3 dilutions. The results were analysed using Kruskal-Wallis and Mann-Whitney U tests (p<0,05).
Results: The results showed that 1% sodium hypochlorite, %1 silver nitrate and 2% silver nitrate were the most effective against Candida Albicans (p<0,05), followed by 100% vinegar, 0,12% chlorhexidine digluconate and 50% vinegar (p<0,05).
Conclusions: Within the boundaries of this study, we conclude that 1% silver nitrate is a promising alternative disinfectant to 1% sodium hypochlorite and performs better compared to 0,12 % chlorhexidine gluconate, 50% and 100% vinegar.
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Loyola-Rodríguez JP, Torres-Méndez F, Espinosa-Cristobal LF, García-Cortes JO, Loyola-Leyva A, González FJ, Soto-Barreras U, Nieto-Aguilar R, Contreras-Palma G. Antimicrobial activity of endodontic sealers and medications containing chitosan and silver nanoparticles against Enterococcus faecalis. J Appl Biomater Funct Mater 2020; 17:2280800019851771. [PMID: 31373255 DOI: 10.1177/2280800019851771] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND The main microorganism associated with the failure of endodontic treatments is Enterococcus faecalis. Although several endodontic therapeutics have demonstrated antimicrobial activity against E. faecalis, the antimicrobial effectiveness of chitosan (CsNPs) and silver nanoparticles (AgNPs) included into conventional endodontic sealers for endodontic therapies is still unclear. AIM The objective of this study was to evaluate the antibacterial activity increment (AAI) of endodontic sealers containing CsNPs and AgNPs as well as some chemical components against E. faecalis by direct contact assays. METHODS CsNPs and AgNPs were synthesized by reduction and ionic gelation methods, respectively. Nanoparticles were characterized by dynamic light scattering and energy dispersive X-ray analysis. The bactericidal activity was tested on monolayers on agar plates and collagen membrane surface assays against E. faecalis. RESULTS The size of CsNPs was 70.6±14.8 nm and zeta potential was 52.0±5.4 mV; the size of AgNPs was 54.2±8.5 nm, and zeta potential was -48.4±6.9 mV. All materials, single or combined, showed an AAI, especially when CsNPs, chlorhexidine (Chx), and the combination of CsNPs-Chx were added. However, the combination of CsNPs-Chx showed the highest (55%) AAI, followed by Chx (35.5%) and CsNPs (11.1%), respectively. There was a significant statistical difference in all comparisons (p < 0.05). Tubliseal (40%) and AH Plus (32%) sealants showed a higher AAI on E. faecalis in the monolayer test and collagen membrane assay analyzed by scanning electron microscopy. CONCLUSIONS Tubliseal and AH plus sealers combined with nanoparticles, especially CsNPs-Chx, could be used for conventional endodontic treatments in the control of E. faecalis bacteria.
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Affiliation(s)
- Juan Pablo Loyola-Rodríguez
- 1 Laboratorio de Bionanomateriales, Facultad de Medicina, Universidad Autónoma de Guerrero, Acapulco, México
| | | | | | | | | | | | - Uriel Soto-Barreras
- 4 Facultad de Odontología, Universidad Autónoma de Chihuahua, Chihuahua, México
| | | | - Guillermo Contreras-Palma
- 1 Laboratorio de Bionanomateriales, Facultad de Medicina, Universidad Autónoma de Guerrero, Acapulco, México
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7
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Goud S, Aravelli S, Dronamraju S, Cherukuri G, Morishetty P. Comparative Evaluation of the Antibacterial Efficacy of Aloe Vera, 3% Sodium Hypochlorite, and 2% Chlorhexidine Gluconate Against Enterococcus faecalis: An In Vitro Study. Cureus 2018; 10:e3480. [PMID: 30648031 PMCID: PMC6318086 DOI: 10.7759/cureus.3480] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Aim To compare the antibacterial efficacy of irrigants (aloe vera, 3% sodium hypochlorite (NaOCl), 2% chlorhexidine (CHX), and saline) against Enterococcus faecalis using the turbidometric analysis and colony count method. Materials and methods Eighty freshly extracted, single-rooted, human mandibular premolar teeth were taken. Access opening was done, instrumented, and autoclaved. Samples were inoculated with 10 µL of an Enterococcus faecalis (E. faecalis) bacterial suspension and incubated at 37◦C for three days. Samples were divided into four groups of 20 teeth each based on the type of irrigating solution used. Group 1 was irrigated with 3% sodium hypochlorite; Group 2 with 2% chlorhexidine; group 3 with aloe vera; and Group 4 with 0.9% saline (the control group). Ten teeth from each group were subjected to a turbidity analysis by spectrophotometer and the remaining 10 teeth from each group were tested for colony-forming units (CFU)/mL. The plates were incubated at 37◦C for 24 hours and CFU that were grown were counted using a bacterial colony counter. Results were subjected to an analysis of variance (ANOVA) followed by a post hoc Games-Howell test. Results All the tested irrigating solutions demonstrated an antibacterial effect against E. faecalis. The greatest antimicrobial effects were observed in samples treated with 2% CHX (p<0.001). No statistically significant difference was found between 3% NaOCl and aloe vera (p > 0.001) against E. faecalis. Conclusion Two percent chlorhexidine exhibited good antimicrobial efficacy against E. faecalis. Three percent NaOCl and aloe vera showed a similar antimicrobial efficacy against E. faecalis. Aloe vera can be used as an antibacterial agent in novel drugs for the treatment of bacterial diseases.
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Affiliation(s)
- Soujanya Goud
- Conservative Dentistry and Endodontics, Army College of Dental Sciences, Secunderabad, IND
| | - Swathi Aravelli
- Conservative Dentistry and Endodontics, Mallareddy Dental College for Women, Hyderabad, IND
| | - Savitri Dronamraju
- Conservative Dentistry & Endodontics, Mallareddy Institute of Dental Sciences, Hyderabad, IND
| | | | - Pradeep Morishetty
- Conservative Dentistry & Endodontics, Lenora Institute of Dental Sciences, Rajahmundry, IND
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8
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Özdemir MB, Karataş E, Albayrak M, Bayır Y. Effect of intracanal medicaments on matrix metalloproteinase-9 and vasoactive intestinal peptide secretion in periapical lesions of re-treated canals: a randomized controlled clinical study. Clin Oral Investig 2018; 23:921-928. [DOI: 10.1007/s00784-018-2517-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 06/04/2018] [Indexed: 01/17/2023]
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9
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Comparison of Different Irrigants in the Removal of Endotoxins and Cultivable Microorganisms from Infected Root Canals. ScientificWorldJournal 2015; 2015:125636. [PMID: 26346574 PMCID: PMC4546762 DOI: 10.1155/2015/125636] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 07/13/2015] [Accepted: 07/15/2015] [Indexed: 11/18/2022] Open
Abstract
This study was conducted to compare the effectiveness of different irrigants used to remove endotoxins and cultivable microorganisms during endodontic therapy. Forty root canals were contaminated and divided into groups according to the irrigant: 2% NaOCl + surfactant, 2% CHX, 2.5% NaOCl, and pyrogen-free saline solution (control). Samples were collected after root canal contamination (S1), after instrumentation (S2), and 7 days after instrumentation (S3). Microorganisms and endotoxins were recovered from 100% of the contaminated root canals (S1). At S2, 2% NaOCl + surfactant, 2% CHX, and 2.5% NaOCl were able to completely eliminate cultivable microorganisms. At S3, both 2% CHX and 2.5% NaOCl were effective in preventing C. albicans and E. coli regrowth, but E. faecalis was still detected. No microorganism species was recovered from root canals instrumented with 2% NaOCl + surfactant. At S2, a higher percentage value of endotoxin reduction was found for 2% NaOCl + surfactant (99.3%) compared to 2% CHX (98.9%) and 2.5% NaOCl (97.18%) (p < 0.05). Moreover, at S3, 2% NaOCl + surfactant (100%) was the most effective irrigant against endotoxins. All irrigants tested were effective in reducing microorganisms and endotoxins from root canals. Moreover, 2% NaOCl + surfactant was the most effective irrigant against endotoxins and regrowth of microorganisms.
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Elakanti S, Cherukuri G, Rao VG, Chandrasekhar V, Rao AS, Tummala M. Comparative evaluation of antimicrobial efficacy of QMix™ 2 in 1, sodium hypochlorite, and chlorhexidine against Enterococcus faecalis and Candida albicans. J Conserv Dent 2015; 18:128-31. [PMID: 25829691 PMCID: PMC4379652 DOI: 10.4103/0972-0707.153067] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 12/19/2014] [Accepted: 01/02/2015] [Indexed: 11/05/2022] Open
Abstract
Aim/Objective: The aim of this study is to compare the antimicrobial efficacy of QMix™ 2 in 1, sodium hypochlorite (NaOCl), and chlorhexidine (CHX) against Enterococcus faecalis and Candida albicans. Materials and Methods: Eighty freshly extracted, single-rooted human mandibular premolar teeth were instrumented and autoclaved. Samples were divided into two groups of 40 teeth each based on the type of microorganism used. Group I was inoculated with E. faecalis and Group II with C. albicans and incubated for 3 days. Each group was subdivided into four subgroups based on the type of irrigant used. Group IA, IIA, 5.25% NaOCl; Group IB, IIB, 2% CHX; Group IC, IIC, QMix™ 2 in 1; and Group ID, IID, 0.9% saline (the control group). Ten microliters of the sample from each canal was taken and was placed on Brain Heart Infusion agar and Sabouraud dextrose agar. The plates were incubated at 37°C for 24 h and colony forming units (CFUs) that were grown were counted. Data was analyzed with analysis of variance (ANOVA) followed by post-hoc Games-Howell test. Results: The greatest antimicrobial effects were observed in samples treated with QMix™ 2 in 1 (P < 0.001). No statistical significant difference was found between 5.25% NaOCl and 2% CHX (P > 0.001) against E. faecalis and C. albicans. Conclusion: QMix™ 2 in 1 demonstrated significant antimicrobial efficacy against E. faecalis and C. albicans.
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Affiliation(s)
- Soujanya Elakanti
- Department of Conservative Dentistry and Endodontics, Mamata Dental College, Khammam, Andhra Pradesh, India
| | - Gayathri Cherukuri
- Oral Pathology and Microbiology, Mamata Dental College, Khammam, Andhra Pradesh, India
| | - Venkateswara G Rao
- Oral Pathology and Microbiology, Mamata Dental College, Khammam, Andhra Pradesh, India
| | | | - Anitha S Rao
- Department of Conservative Dentistry and Endodontics, Mamata Dental College, Khammam, Andhra Pradesh, India
| | - Muralidhar Tummala
- Department of Conservative Dentistry and Endodontics, Mamata Dental College, Khammam, Andhra Pradesh, India
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11
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Ozcan E, Yula E, Arslanoğlu Z, Inci M. Antifungal activity of several root canal sealers against Candida albicans. Acta Odontol Scand 2013; 71:1481-5. [PMID: 24180589 DOI: 10.3109/00016357.2013.771405] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The purpose of this in vitro study was to evaluate the antifungal activity of several root canal sealers (iRoot SP, MTA Fillapex and GuttaFlow) against Candida albicans and compare them to that of AH Plus Jet. MATERIALS AND METHODS A 10 μL fungi in suspension was allowed to directly contact the sealers, which were freshly mixed or allowed to set for 1 or 7 days. Fresh media was then added and survival of fungi was determined by using 10-fold serial dilution and inoculated onto agar plates. After incubation for 48 h, colony-forming units (CFU) were calculated and their log10 values converted. The data were analyzed using ANOVA and Tukey tests (α = 0.05). RESULTS Freshly mixed AH Plus Jet totally inhibited the growth of fungi and showed the highest antifungal activity. GuttaFlow did not show any significant antifungal activity at all times. Freshly mixed iRoot SP and MTA Fillapex were found to be antifungal. Statistical differences were found between freshly mixed and set samples (p < 0.05) in favor of the former, except GuttaFlow. No statistically significant differences were found among the tested sealers at the 1 and 7-day samples (p > 0.05). CONCLUSIONS Fresh AH Plus Jet had very potent antifungal activity. All sealers, except GuttaFlow, exhibited antifungal activity when freshly mixed.
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Affiliation(s)
- Erhan Ozcan
- Department of Endodontics, Faculty of Dentistry, Selçuk University , Konya , Turkey
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12
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Delgado RJR, Gasparoto TH, Sipert CR, Pinheiro CR, de Moraes IG, Garcia RB, Duarte MAH, Bramante CM, Torres SA, Garlet GP, Campanelli AP, Bernardineli N. Antimicrobial activity of calcium hydroxide and chlorhexidine on intratubular Candida albicans. Int J Oral Sci 2013; 5:32-6. [PMID: 23538639 PMCID: PMC3632761 DOI: 10.1038/ijos.2013.12] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
This study investigated the efficacy of calcium hydroxide and chlorhexidine gel for the elimination of intratubular Candida albicans (C. albicans). Human single-rooted teeth contaminated with C. albicans were treated with calcium hydroxide, 2% chlorhexidine gel, calcium hydroxide plus 2% chlorhexidine gel, or saline (0.9% sodium chloride) as a positive control. The samples obtained at depths of 0–100 and 100–200 µm from the root canal system were analyzed for C. albicans load by counting the number of colony forming units and for the percentage of viable C. albicans using fluorescence microscopy. First, the antimicrobial activity of calcium hydroxide and the 2% chlorhexidine gel was evaluated by counting the number of colony forming units. After 14 days of intracanal medication, there was a significant decrease in the number of C. albicans colony forming units at a depth of 0–100 µm with chlorhexidine treatment either with or without calcium hydroxide compared with the calcium hydroxide only treatment. However, there were no differences in the number of colony forming units at the 100–200 µm depth for any of the medications investigated. C. albicans viability was also evaluated by vital staining techniques and fluorescence microscopy analysis. Antifungal activity against C. albicans significantly increased at both depths in the chlorhexidine groups with and without calcium hydroxide compared with the groups treated with calcium hydroxide only. Treatments with only chlorhexidine or chlorhexidine in combination with calcium hydroxide were effective for elimination of C. albicans.
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13
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Gulsahi K, Tirali RE, Cehreli SB, Karahan ZC, Uzunoglu E, Sabuncuoglu B. The effect of temperature and contact time of sodium hypochlorite on human roots infected with Enterococcus faecalis and Candida albicans. Odontology 2012; 102:36-41. [PMID: 23011474 DOI: 10.1007/s10266-012-0086-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2012] [Accepted: 09/10/2012] [Indexed: 10/27/2022]
Abstract
The aim of this study was to evaluate the effectiveness of 2.5 % NaOCl at different temperature and time intervals on Enterococcus faecalis and Candida albicans-infected human roots. A total of 112 root cylinders prepared from extracted single-rooted humans were infected by E. faecalis (Group A, n = 56) or C. albicans (Group B, n = 56); 3 root cylinders served as negative controls. Both groups were further divided into 6 subgroups according to three contact times (30 s, 1 min, 5 min) with NaOCl at two different temperatures (25 or 37 °C). Microorganism growth was controlled at the 24th and 48th hours. Statistical analysis was performed using the Chi-square test. While NaOCl at 25 °C for 5 min was the most effective irrigation regimen to eliminate E. faecalis (p < 0.001), NaOCl at 37 °C for 5 min exhibited significantly superior antifungal properties (p < 0.05). At the same contact times, difference in the temperature of NaOCl did not affect the growth of either E. faecalis or C. albicans. As a result, the irrigation time of NaOCl was more effective than the temperature to eliminate E. faecalis, while pre-heating of NaOCl to 37 °C increased its effectiveness on C. albicans at 5 min contact time.
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Affiliation(s)
- Kamran Gulsahi
- Department of Endodontics, Faculty of Dentistry, Baskent University, Ankara, Turkey
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Ferreira Chacon JM, Hato de Almeida E, de Lourdes Simões R, Lazzarin C Ozório V, Alves BC, Mello de Andréa ML, Santiago Biernat M, Biernat JC. Randomized study of minocycline and edetic acid as a locking solution for central line (port-a-cath) in children with cancer. Chemotherapy 2011; 57:285-91. [PMID: 21778716 DOI: 10.1159/000328976] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Accepted: 02/17/2011] [Indexed: 11/19/2022]
Abstract
BACKGROUND Contamination of central catheters is frequent, and biofilm perpetuates infections. Heparin does not protect against infections because it has no antibiotic action. Minocycline and edetic acid (M-EDTA), a potent calcium chelating agent that destroys bacterial and fungal cell membrane and disrupts biofilm, may be an alternative to allow the associated antibiotic to act locally at a high and safe concentration. METHODS Fifty children with cancer and a port-a-cath were followed up: 26 received heparin (group 1) and 24 M-EDTA (group 2). A total of 762 serial prospective blood cultures were obtained, 387 from group 1 and 375 from group 2. RESULTS In group 1 (heparin), 19 blood cultures were positive, and infection incidence was 73.1% (19/26 ports). In group 2 (M-EDTA), 5 blood cultures were positive, and the incidence rate was 20.8% (5/24 ports). CONCLUSION M-EDTA, compared with heparin, prevents and treats catheter infections, and is a promising alternative to decrease sepsis during chemotherapy.
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