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Chandrappa MM, Meharwade PM, Srinivasan R, Bhandary S, Nasreen F. Antimicrobial effect of three disinfecting agents on Resilon cones and their effect on surface topography: An in vitro study. J Conserv Dent 2016; 19:134-7. [PMID: 27099418 PMCID: PMC4815540 DOI: 10.4103/0972-0707.178689] [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] [Indexed: 11/29/2022] Open
Abstract
Aim: The objective of this study was to evaluate the effectiveness of 5.25% sodium hypochlorite (NaOCl), 2% chlorhexidine (CHX), and 2% peracetic acid (PAA) in disinfecting Resilon cones and to evaluate topographical changes microscopically under scanning electron microscope (SEM) after rapid chemical disinfection. Materials and Methods: Resilon cones were disinfected in an ultraviolet (UV) light chamber for 20 min and contaminated by immersing in a microbial suspension of Enterococcus faecalis for 30 min. The contaminated cones were then immersed in the 5.25% NaOCl, 2% CHX, and 2% PAA for 1 min, 5 min, and 10 min, separately. The cones were then incubated at 37°C in thioglycollate broth for 7 days and examined for turbidity. The samples showing turbidity were subcultured on blood agar and incubated at 37°C for 48 h. Gram staining was done to confirm that the cultured bacteria were E. faecalis. Surface changes of disinfected Resilon cones were evaluated under SEM. Statistical Analysis Used: The data were analyzed statistically using Kruskal-Wallis, analysis of variance (ANOVA), and Mann–Whitney U-test. Result: In eliminating E. faecalis, 5.25% NaOCl was most effective followed by 2% PAA and 2% CHX. Topographic examination of tested Resilon cones revealed some surface deposits after disinfection with 5.25% NaOCl and 2% CHX, whereas 2% PAA caused surface erosion. Conclusion: In disinfecting Resilon cones, 5.25% NaOCl is most effective followed by 2% PAA and 2% CHX.
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Affiliation(s)
- Mahesh Martur Chandrappa
- Department of Conservative Dentistry and Endodontics, AECS Maaruti College of Dental Sciences and Research Centre, Bangalore, Karnataka, India
| | - Prasanna Mahadevasa Meharwade
- Department of Conservative Dentistry and Endodontics, AECS Maaruti College of Dental Sciences and Research Centre, Bangalore, Karnataka, India
| | - Raghu Srinivasan
- Department of Conservative Dentistry and Endodontics, AECS Maaruti College of Dental Sciences and Research Centre, Bangalore, Karnataka, India
| | - Shreetha Bhandary
- Department of Conservative Dentistry and Endodontics, AECS Maaruti College of Dental Sciences and Research Centre, Bangalore, Karnataka, India
| | - Farhat Nasreen
- Department of Conservative Dentistry and Endodontics, AECS Maaruti College of Dental Sciences and Research Centre, Bangalore, Karnataka, India
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Kumar Y, Lohar J, Bhat S, Bhati M, Gandhi A, Mehta A. Comparative evaluation of demineralization of radicular dentin with 17% ethylenediaminetetraacetic acid, 10% citric acid, and MTAD at different time intervals: An in vitro study. J Int Soc Prev Community Dent 2016; 6:44-8. [PMID: 27011932 PMCID: PMC4784063 DOI: 10.4103/2231-0762.175412] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Background: The smear layer has the capability to protect the bacteria within the dentinal tubules from intracanal medicament. After removal of the smear layer from infected root canals, it allows disinfection of the entire root canal. The smear layer compromising the seal between the root canal sealer and root canal wall also decreases the penetration of irrigants into dentinal tubules. Aims: This study compares the amount of phosphorous liberated and demineralization of the radicular dentin with 17% ethylenediaminetetraacetic acid, 10% citric acid and mixture of doxycycline, citric acid, and a detergent at different time intervals. Materials and Methods: Extracted maxillary single-rooted teeth were prepared by using a combination of passive step-back and rotary 0.04 taper nickel-titanium files. Sodium hypochlorite 5.25% and sterile distilled water were used as an intracanal irrigant. The canals were then treated with 5 mL of one of the following solutions such as final rinse sterile distilled water, 5.25% sodium hypochlorite, 17% ethylenediaminetetraacetic acid (EDTA) or mixture of doxycycline, citric acid, and a detergent. The presence or absence of smear layer and the amount of erosion on the surface of the root canal walls at the coronal, middle, and apical portions of each canal were examined under a scanning electron microscope. Statistical Analysis: Data were analyzed by one-way analysis of variance (ANOVA) to determine whether there were significant differences between the groups. Results: The results show that mixture of doxycycline, citric acid, and a detergent is an effective solution for the removal of the smear layer and does not significantly change the structure of the dentinal tubules. Conclusions: In this study, 10% citric acid shows the maximum amount of dimeneralization of radicular dentine followed by mixture of doxycycline, citric acid, and a detergent, and 17% ethylenediaminetetraacetic acid. When all the subgroups were compared, it was seen that the maximum amount of phosphorus liberation was performed by 10% citric acid >mixture of doxycycline, citric acid, and a detergent >17% EDTA at a different time interval.
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Affiliation(s)
- Yogender Kumar
- Department of Conservative and Endodontics, Darshan Dental College and Hospital, Udaipur, Rajasthan, India
| | - Jitendra Lohar
- Department of Conservative and Endodontics, Darshan Dental College and Hospital, Udaipur, Rajasthan, India
| | - Sureka Bhat
- Department of Conservative and Endodontics, Darshan Dental College and Hospital, Udaipur, Rajasthan, India
| | - Manisha Bhati
- Department of Dentistry, Mathura Das Mathur Hospital, Jodhpur, Rajasthan, India
| | - Aanesh Gandhi
- Department of Conservative and Endodontics, Darshan Dental College and Hospital, Udaipur, Rajasthan, India
| | - Abhishek Mehta
- Department of Conservative and Endodontics, Dashvani Dental College and Hospital, Kota, Rajasthan, India
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Aktemur Turker S, Aslan MH, Uzunoglu E, Ozcelik B. Antimicrobial and structural effects of different irrigation solutions on gutta-percha cones. J Istanb Univ Fac Dent 2015; 49:27-32. [PMID: 28955522 PMCID: PMC5573460 DOI: 10.17096/jiufd.92774] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Accepted: 01/28/2015] [Indexed: 12/03/2022] Open
Abstract
Purpose: To evaluate the alterations on the surface of gutta-percha cones (GPCs) on exposure to the different irrigation solutions and
their possible antibacterial effect against Enterococcus faecalis. (E. faecalis) Materials and Methods: Disinfection ability of different solutions (5.25% sodium hypochlorite, 2% chlorhexidine, 1% peracetic acid, and QMix) were tested with 96 GPCs and
the time of exposure to each solution was 5 and 10 minutes, respectively. GPCs used in this study were contaminated with E.faecalis. After disinfection,
GPCs were placed in tubes containing the medium and incubated at 37˚C for 7 days. All tubes were visually checked for turbidity at 24-hour intervals.
About 92 new GPCs were analyzed by means of SEM/EDS to assess the topography and chemical elements present on their surface. The data generated was analyzed
using Pearson chi-square test, p<0.05. Results: There were no significant statistical differences in disinfection quality between the irrigation solutions used on GPCs contaminated with E.
faecalis (p>0.05). SEM/EDS analyses showed no alteration in the superficial features of GPCs after treating with various irrigation solutions. Conclusion: QMix was found to be an effective agent for rapid disinfection of GPCs as well-known irrigation solutions. Irrigation solutions were found to
have sterilized the GPCs after both 5 and 10 minutes of exposure.
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Affiliation(s)
- Sevinc Aktemur Turker
- Department of Endodontics, Faculty of Dentistry, Bülent Ecevit University, Zonguldak Turkey
| | - Mehtap Hulya Aslan
- Microbiology Laboratory, Erzurum Regional Training and Research Hospital, Erzurum Turkey
| | - Emel Uzunoglu
- Department of Endodontics, Faculty of Dentistry, Hacettepe University, Ankara Turkey
| | - Bahar Ozcelik
- Department of Endodontics, Faculty of Dentistry, Hacettepe University, Ankara Turkey
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Tilakchand M, Naik B, Shetty AS. A comparative evaluation of the effect of 5.25% sodium hypochlorite and 2% chlorhexidine on the surface texture of Gutta-percha and resilon cones using atomic force microscope. J Conserv Dent 2014; 17:18-21. [PMID: 24554854 PMCID: PMC3915377 DOI: 10.4103/0972-0707.124102] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 09/24/2013] [Accepted: 10/21/2013] [Indexed: 11/05/2022] Open
Abstract
Aims & Objectives: The purpose of this study was to investigate the effects of 5.25% sodium hypochlorite (NaOCl) and 2% chlorhexidine (CHX) on Gutta-percha and Resilon cones using an atomic force microscope (AFM). Materials and Methods: Gutta-percha cones (n = 15) and Resilon cones (n = 15) were cut 3 mm from their tip, attached to a glass slide with cyanoacrylate glue and immersed in 5.25% NaOCl and CHX for 1, 5, 10, 20 and 30 min. Five each of Gutta-percha and Resilon cones not treated with any disinfectant were used as control. The analysis of the surface topography was performed on the region between 1 and 2 mm from the tip using the AFM. The root mean square (RMS) parameters for contact mode imaging were measured. The differences between RMS values were tested by SPSS-16.0 version statistical software [IBM SPSS (Statistical Product and Service Solutions) Data Software, Chicago, US] using Kruskal-Wallis ANOVA, Mann-Whitney U-test and Wilcoxon matched pairs test. Results: There was no deterioration in the surfac e topography of Gutta-percha and Resilon when treated with 2% CHX in comparison to baseline (P < 0.05). Resilon exhibited no deterioration in topography when immersed in 5.25% NaOCl. There was a significant decrease in the mean RMS values of Gutta-percha treated with NaOCl from the control at time intervals of 1, 5, 10, 20 and 30 min.
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Affiliation(s)
- Mahima Tilakchand
- Department of Conservative Dentistry and Endodontics, S.D.M. College of Dental Sciences and Hospital, Sattur, Dharwad, Karnataka, India
| | - Balaram Naik
- Department of Conservative Dentistry and Endodontics, S.D.M. College of Dental Sciences and Hospital, Sattur, Dharwad, Karnataka, India
| | - Abhijith S Shetty
- Department of Conservative Dentistry and Endodontics, S.D.M. College of Dental Sciences and Hospital, Sattur, Dharwad, Karnataka, India
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Lotfi M, Ghasemi N, Rahimi S, Vosoughhosseini S, Saghiri MA, Shahidi A. Resilon: a comprehensive literature review. J Dent Res Dent Clin Dent Prospects 2013; 7:119-30. [PMID: 24082982 PMCID: PMC3779370 DOI: 10.5681/joddd.2013.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Accepted: 03/23/2013] [Indexed: 11/17/2022] Open
Abstract
Background and aims. An ideal root canal filling material should completely seal the entire root canal space and block communication between the root canal system and its surrounding tissues; it should also be nontoxic, noncarcinogenic, non-genotoxic, biocompatible, insoluble in tissue fluids and dimensionally stable. Bonding to dentin is a promising property, which can prevent leakage and improve the sealing ability of root canal filling materials. Resilon was developed and rec-ommended initially because the existing rootcanal filling materials did not bond to root canal dentin. Since its introduction in 2004, numerous reports have been published regarding various aspects of this material. The aim of this literature review is to present investigations regarding Resilon's physical and chemical properties and leakage studies. Materials and methods. A review of the literature was performed by using electronic and hand searching methods for Resilon from May 2004 to April 2012. Results. There are many published reports regarding Resilon. The searchshowed that Resilon is composed of a parent polymer, polycaprolactone or Tone, which is a biodegradable aliphatic polyester, with filler particles consisting of bioactive glass, bismuth oxychloride and barium sulfate. It possesses some antibacterial and antifungal properties. It is a promising material for root canal filling. Despite the presence of numerous case reports and case series regarding these applications, there are few designed research studies on clinical applications of this material. Resilon has some drawbacks such as high cost. Conclusion. Resilon seals well and is a biocompatible material. However, more clinical studies are needed to confirm its efficacy compared with other materials.
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Affiliation(s)
- Mehrdad Lotfi
- Professor, Department of Endodontic, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Negin Ghasemi
- Postgraduate Student, Department of Endodontic, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Rahimi
- Professor, Department of Endodontic, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
- Dental and Periodontal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sepideh Vosoughhosseini
- Associate Professor, Department of Oral and Maxillofacial Pathology, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Ali Saghiri
- Research Associated, Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public health, Madison, WI, USA
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Nikhil V, Singh R. Confocal laser scanning microscopic investigation of ultrasonic, sonic, and rotary sealer placement techniques. J Conserv Dent 2013; 16:294-9. [PMID: 23956528 PMCID: PMC3740637 DOI: 10.4103/0972-0707.114348] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 04/12/2013] [Accepted: 05/04/2013] [Indexed: 11/25/2022] Open
Abstract
Background: Sealers are used to attain an impervious seal between the core material and root canal walls. Aim: To compare the depth and percentage of sealer penetration with three different placement techniques using confocal laser scanning microscopy as the evaluative tool. Materials and Methods: Root canals of 30 single-rooted teeth were prepared to a size of F3 and AH plus sealer with Rhodamine B was applied with Ultlrasonic file (Gr-1), lentulospiral (Gr-2), and Endoactivator (Gr-3). Canals were obturated with gutta-percha. The roots were sectioned at the 3 and 6-mm levels from the apical foramen and were examined on a confocal microscope. Results: A statistical significant differences among Gr-1, Gr-2, and Gr-3 were found at the 3 and 6-mm level (P < 0.05; ANOVA-Tukey tests) for the depth and percentage of sealer penetration except for Gr-1 and Gr-2 at 3-mm level. Gr-1 showed maximum mean depth of penetration (810 μm) and maximum mean percentage of sealer penetration (64.5) while Gr-3 showed minimum mean depth of penetration (112.7 μm) and minimum mean percentage of sealer penetration (26.7). Conclusion: Depth and percentage of penetration of sealer is influenced by the type of placement technique and by the root canal level with penetration decreasing apically.
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Affiliation(s)
- Vineeta Nikhil
- Department of Conservative Dentistry and Endodontics, Subharti Dental College, Meerut, Uttar Pradesh, India
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Effect of Disinfection Solutions on the Adhesion Force of Root Canal Filling Materials. J Endod 2012; 38:853-5. [DOI: 10.1016/j.joen.2012.01.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Revised: 01/04/2012] [Accepted: 01/08/2012] [Indexed: 11/24/2022]
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Prado M, Gusman H, Gomes BP, Simão RA. Effect of disinfectant solutions on gutta-percha and resilon cones. Microsc Res Tech 2012; 75:791-5. [DOI: 10.1002/jemt.21126] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2011] [Accepted: 10/17/2011] [Indexed: 11/08/2022]
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Topuz Ö, Sağlam BC, Şen F, Şen S, Gökağaç G, Görgül G. Effects of sodium hypochlorite on gutta-percha and Resilon cones: An atomic force microscopy and scanning electron microscopy study. ACTA ACUST UNITED AC 2011; 112:e21-6. [DOI: 10.1016/j.tripleo.2011.03.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Accepted: 03/01/2011] [Indexed: 11/27/2022]
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Prado M, de Assis DF, Gomes BP, Simão RA. Effect of Disinfectant Solutions on the Surface Free Energy and Wettability of Filling Material. J Endod 2011; 37:980-2. [DOI: 10.1016/j.joen.2011.03.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Revised: 03/20/2011] [Accepted: 03/25/2011] [Indexed: 10/18/2022]
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Prado M, Gusman H, Gomes BP, Simão RA. The importance of final rinse after disinfection of gutta-percha and Resilon cones. ACTA ACUST UNITED AC 2011; 111:e21-4. [DOI: 10.1016/j.tripleo.2011.01.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Accepted: 01/06/2011] [Indexed: 11/26/2022]
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Salvia ACRD, Teodoro GR, Balducci I, Koga-Ito CY, Oliveira SHGD. Effectiveness of 2% peracetic acid for the disinfection of gutta-percha cones. Braz Oral Res 2011; 25:23-7. [DOI: 10.1590/s1806-83242011000100005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Accepted: 10/27/2010] [Indexed: 11/22/2022] Open
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Structural effects of sodium hypochlorite solution on RaCe rotary nickel-titanium instruments: an atomic force microscopy study. ACTA ACUST UNITED AC 2008; 105:661-5. [DOI: 10.1016/j.tripleo.2007.11.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2007] [Revised: 10/29/2007] [Accepted: 11/05/2007] [Indexed: 11/23/2022]
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