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Aiswarya N, Girish TN, Ponnappa KC. An in vitro evaluation of effectiveness of Xylene, Thyme oil and Orange oil in dissolving three different endodontic sealers. J Conserv Dent 2023; 26:305-310. [PMID: 37398861 PMCID: PMC10309125 DOI: 10.4103/jcd.jcd_56_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/01/2023] [Accepted: 03/08/2023] [Indexed: 07/04/2023] Open
Abstract
Aims The aim of the study is to compare the dissolution effectiveness of xylene, thyme oil, and orange oil on three different endodontic sealers. Materials and Methods Standardized stainless steel molds were used to prepare 210 samples (70 for each endodontic sealer). The samples were divided into three groups based on sealers. Three experimental groups with 20 samples each were immersed in organic solvents. One control group of 10 samples was immersed in distilled water. Each group was further subdivided into two subgroups based on immersion time (2 and 10 min). Inferential statistics included one-way ANOVA, post hoc Tukey, and paired t-test. Results Thyme showed significantly more dissolution capacity at 10 min compared to 2 min in dissolving AH Plus sealer whereas this difference was nonsignificant for Roekoseal and MTA Fillapex. Orange oil showed significantly more dissolution at 10 min compared to 2 min in dissolving AH Plus sealer and Roekoseal whereas this difference was nonsignificant concerning MTA Fillapex. Xylene showed significantly more dissolution capacity at 10 min compared to 2 min in dissolving AH Plus sealer, Roekoseal, and MTA Fillapex. Conclusions Among the three solvents, xylene showed the highest dissolution of all three sealers. Orange oil was superior to thyme oil in dissolving the sealers. All the sealers showed more dissolution in all the solvents at 10 min compared to 2 min.
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Affiliation(s)
- N. Aiswarya
- Department of Conservative Dentistry and Endodontics, KVG Dental College and Hospital, Sullia, Karnataka, India
| | - T. N. Girish
- Department of Conservative Dentistry and Endodontics, Coorg Institute of Dental Sciences, Virajpet, Karnataka, India
| | - K. C. Ponnappa
- Department of Conservative Dentistry and Endodontics, Coorg Institute of Dental Sciences, Virajpet, Karnataka, India
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Jamshidi D, Tahriri M, Mosleh H, Madadpour M, Heidari S, Alipour Heydari M, Kharazifard MJ. Effect of Chloroform Application on Roughness and Wettability of the Root Canal Walls in Endodontic Retreatment. JOURNAL OF DENTISTRY (SHIRAZ, IRAN) 2022; 23:272-277. [PMID: 36506884 PMCID: PMC9719591 DOI: 10.30476/dentjods.2021.88414.1329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 04/05/2021] [Accepted: 08/29/2021] [Indexed: 12/15/2022]
Abstract
Statement of the Problem The success of root canal therapy depends on root canal irrigation, disinfection, and sealing of root canal. Wettability and roughness of root dentine surface are important factors in root canal disinfection and sealing. Purpose This study aimed to assess the effect of chloroform application on roughness and wettability of the root canal walls in endodontic retreatment. Materials and Method This in vitro experimental study evaluated 70 sound extracted human anterior teeth. The specimens were then randomly assigned to 7 groups as follows: Chloroform (group 1), 1g gutta percha+chloroform (group 2), 2g gutta percha+ chloroform (group 3), 1g gutta percha+ 1g sealer+ chloroform (group 4), 2g gutta perch+ 2g sealer+chloroform (group 5), 1g sealer + chloroform (group 6) and 2g sealer + chloroform (group 7). One drop of distilled water was placed on each tooth to measure the contact angle and wettability. Photographs were obtained of an area measuring 50×50 µm2 in three directions under an atomic force microscope to measure the roughness. The tooth blocks were exposed to the abovementioned mixtures for 10 min, and then rinsed with saline. The roughness and wettability of each sample were measured before and after treatment. Data was analyzed using one-way ANOVA and Tukey's test. Results The roughness of all groups significantly decreased following treatment, except for groups 1 and 4. The contact angle increased in all groups after treatment (except for the chloroform group), which indicated decreased wettability. The roughness and the contact angle have shown no correlation. Conclusion Application of chloroform for removal of gutta-percha and sealer in endodontic retreatment decreases the roughness and wettability of dentine.
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Affiliation(s)
- Davoud Jamshidi
- Dept. of Endodontics, Dental Caries Prevention Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Mohammadreza Tahriri
- Postdoctoral Fellow Researcher, Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | - Heydar Mosleh
- General Dentist, Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Mohammad Madadpour
- General Dentist, Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Soolmaz Heidari
- Dept. of Operative Dentistry, Dental Caries Prevention Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
| | | | - Mohamad Javad Kharazifard
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
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Saavedra Gonzales PJ, Cabrera Iberico MA. [In vitro study of the effect of three commercial solvents on gutta-percha cones used for the cold and thermoplastic technique]. REVISTA CIENTÍFICA ODONTOLÓGICA 2022; 10:e104. [PMID: 38389662 PMCID: PMC10880700 DOI: 10.21142/2523-2754-1002-2022-104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 06/10/2022] [Indexed: 02/24/2024] Open
Abstract
The objective of this research was to compare the solvent action of orange oil, eucalyptol and experimental lemongrass oil on gutta-percha cones for cold technique and thermoplastic technique. Methodology The sample consisted of 80 gutta-percha cones No. 80 Endomedic and F3 ProTaper Universal. The cones were divided into 4 groups (n = 20) according to the type of solvent, and each one was divided into two subgroups (n = 10) according to the exposure time (5 min and 10 min). The cones were immersed in the respective solvent for 5 or 10 minutes. Then, they were washed with 5 ml of alcohol for 5 minutes and rinsed with water. Finally, after drying at room temperature for one hour, the solvent action was recorded in grams (g) of weight loss. The results were analyzed and compared using Tukey's test (p<0.05). Results The Endomedic cone exposed for 5 min to eucalyptol obtained the lowest average weight (0.0625 ± 0.0009 g), followed by Lemongrass oil (0.0629 ± 0.0003 g) and orange oil (0.0629 ± 0.0010 g), although not a significant difference (p > 0.05) was found between each one. Conclusion The experimental solvent of Lemongrass, eucalyptol and orange oil presented a similar solvent effect on the guta-percha cone for cold and thermoplastic technique. At a clinical level, the three solvents studied could be used in endodontic retreatment as alternative solutions with a similar solvent effect.
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Affiliation(s)
- Paul Josep Saavedra Gonzales
- División de Carielogía y Endodoncia, Carrera de Odontología de la Universidad Científica del Sur. Lima, Perú. , Universidad Científica del Sur División de Carielogía y Endodoncia Carrera de Odontología Universidad Científica del Sur Lima Peru
| | - Miguel Angel Cabrera Iberico
- División de Carielogía y Endodoncia, Carrera de Odontología de la Universidad Científica del Sur. Lima, Perú. , Universidad Científica del Sur División de Carielogía y Endodoncia Carrera de Odontología Universidad Científica del Sur Lima Peru
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Kuriakose F, Joy B, Mathew J, Karathodiyil R, R H, Philip T. The Effects of Various Final Irrigants on the Bond Strength of Root Dentin Exposed to Chloroform: An In vitro Study. J Pharm Bioallied Sci 2021; 13:S629-S632. [PMID: 34447168 PMCID: PMC8375833 DOI: 10.4103/jpbs.jpbs_555_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/30/2020] [Accepted: 11/24/2020] [Indexed: 11/23/2022] Open
Abstract
Aim: The aim of the study was to assess the reaction of different final irrigants to the bond strength of root dentin exposed to chloroform. Materials and Methods: Fifty extracted maxillary central incisors were selected. Working length was determined, and canal was instrumented with ProTaper rotary system (Dentsply Maillefer) till F4 file. The specimens were then divided into five groups (n = 10). Group 1: not disclosed to any root canal solvent, Group 2: disclosed to chloroform for 5 min, Group 3: chloroform for 5 min followed by absolute alcohol, Group 4: chloroform for 5 min followed by chlorhexidine (CHX), And Group 5 – chloroform for 5 min followed by saline. The canals were obturated with F4 gutta-percha cones with AH Plus sealer. The samples will be sectioned horizontally into 1 ± 0.1 mm thick slices. The push-out bond strength was performed in a universal testing machine. Results were statistically analyzed by one-way analysis of variance. Results: There existed a significant difference between the mean push-out bond strength of different groups. Irrigation with chloroform negatively affected the bonding between root canal sealer and root dentine. Absolute alcohol significantly improved the bond strength values. Conclusion: Exposure with chloroform during the retreatment will decrease the bonding between sealer (AH Plus) and root dentine. The use of absolute alcohol as a final irrigant improved the bonding between sealer and dentin. CHX and saline showed no improvement in bond strength.
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Affiliation(s)
- Feby Kuriakose
- Department of Conservative Dentistry and Endodontics, Mar Baselios Dental College, Ernakulam, Kerala, India
| | - Basil Joy
- Department of Conservative Dentistry and Endodontics, Mar Baselios Dental College, Ernakulam, Kerala, India
| | - Joy Mathew
- Department of Conservative Dentistry and Endodontics, Mar Baselios Dental College, Ernakulam, Kerala, India
| | - Ranjith Karathodiyil
- Department of Conservative Dentistry and Endodontics, MES Dental College, Perinthalmanna, Kerala, India
| | - Hariprasad R
- Senior Resident, Endodontics, Employees State Insurance Corporation Hospital, Ezhukone, Kollam District, Kerala, India
| | - Teenu Philip
- Department of Oral and Maxillofacial Surgery, Annoor Dental College, Muvattupuzha, Kerala, India
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Maria R, Dutta SD, Thete SG, AlAttas MH. Evaluation of Antibacterial Properties of Organic Gutta-percha Solvents and Synthetic Solvents Against Enterococcus faecalis. J Int Soc Prev Community Dent 2021; 11:179-183. [PMID: 34036080 PMCID: PMC8118058 DOI: 10.4103/jispcd.jispcd_422_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/16/2021] [Accepted: 01/23/2021] [Indexed: 11/18/2022] Open
Abstract
Background: The use of solvents is necessary to remove remnants of filling materials within dentinal tubules to allow penetration of irrigating solution within the tubules. Aim and Objectives: We aimed at determining the antibacterial effect of various gutta-percha (GP) solvents against Enterococcus faecalis (E. faecalis). Materials and Methods: An in vitro study was conducted by measuring the zone of inhibition using the disk diffusion method. The test organism used for the study was E. faecalis, and the solvents were divided into five groups: eucalyptus oil, chloroform, turpentine oil, xylene, and orange oil. About 500 μL of the suspension was spread over the agar plates, and the empty sterilized disks were impregnated with 10 μL of pure essential oils (EOs). The inoculated plates were incubated at 37°C for 18 to 24 h. The antimicrobial activity of each solvent was expressed and measured in terms of the mean diameter of the zone of inhibition (in mm) produced by each solvent at the end of the incubation period. ANOVA was used for intergroup comparison. The P-value of <0.05 was considered significant. Results: The mean zone of inhibition for E. faecalis was 24.00 ± 1.21 for eucalyptus oil, 16.30 ± 0.92 for chloroform, 26.50 ± 1.24 for turpentine oil, 13.70 ± 1.26 for xylene, and 19.80 ± 1.32 for orange oil. The difference between the groups was statistically significant (P < 0.001). Conclusion: This study demonstrated that the use of turpentine oil during endodontic retreatment significantly reduced the levels of E. faecalis as compared with other solvents.
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Affiliation(s)
- Rahul Maria
- Department of Conservative Dentistry and Endodontics, Bhabha College of Dental Sciences, Bhopal, Madhya Pradesh, India
| | - Smita D Dutta
- Department of Conservative Dental Sciences and Endodontics, College of Dentistry, Qassim University, Buraydah, Saudi Arabia
| | - Sanjay G Thete
- Department of Oral Pathology and Microbiology, Rural Dental College, Loni, PIMS (DU), Maharashtra, India
| | - Mustafa Hussein AlAttas
- Department of Conservative Dental Sciences and Endodontics, College of Dentistry, Qassim University, Buraydah, Saudi Arabia
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Garrib M, Camilleri J. Retreatment efficacy of hydraulic calcium silicate sealers used in single cone obturation. J Dent 2020; 98:103370. [PMID: 32387505 DOI: 10.1016/j.jdent.2020.103370] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/25/2020] [Accepted: 05/02/2020] [Indexed: 10/24/2022] Open
Abstract
OBJECTIVE Removal of obturating materials from the root canal during retreatment is usually accomplished by mechanical means and organic solvents to dissolve the gutta-percha. This strategy is ineffective on sealers. The aim of this research was to assess the efficacy of mechanical instrumentation aided by targeted chemical means for removal of hydraulic sealers. METHODS A preliminary study assessed the effect of 17% EDTA and 10/20% formic acid applied for 5 or 10 min on dentine and for 5 min on Totalfill BC sealer (FKG). Microhardness and structural integrity by scanning electron microscopy and energy dispersive spectroscopy were investigated. The optimal solutions were used as adjuncts to mechanical instrumentation to remove obturations made with single cone using a standard gutta-percha and bioceramic coated gutta-percha and Totalfill BC sealer. The removal of obturation material from the root canal system of obturated teeth was evaluated using microcomputed tomography. The canal patency and reestablishment of working length were also checked. RESULTS The preliminary study showed that 17% EDTA and 10% formic acid applied for 5 min did not damage the dentine but effected the structural integrity of the sealer. 10% formic acid used in conjunction with mechanical instrumentation was the most efficient method to remove the obturation material from the root canal, achieving over 95% removal for both gutta-percha and the bioceramic coated version and also achieve patency and reestablishment of working length. CONCLUSIONS The use of a targeted irrigation protocol with a chemical adjunct to the mechanical instrumentation is the best way to retreat teeth obturated with hydraulic calcium silicate sealer and gutta-percha.
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Affiliation(s)
- M Garrib
- School of Dentistry, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - J Camilleri
- School of Dentistry, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom.
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Das S, De Ida A, Das S, Nair V, Saha N, Chattopadhyay S. Comparative evaluation of three different rotary instrumentation systems for removal of gutta-percha from root canal during endodontic retreatment: An in vitro study. J Conserv Dent 2018; 20:311-316. [PMID: 29386777 PMCID: PMC5767824 DOI: 10.4103/jcd.jcd_132_17] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Context: Endodontic retreatment is performed in teeth with endodontic failures. The main goal of retreatment is cleaning and shaping of the root canal with removal of old root filling material. Hand instruments and rotary instruments are mainly used for removing this filling material. Aim of Study: To compare the relative efficacy of three rotary instrumentation systems for removal of gutta-percha from root canal during endodontic retreatment. Objective of Study: To find out which NiTi system is more efficacious in retreatment and to check out the efficacy of retreatment with and without use of solvent. Materials and Methods: Sixty freshly extracted, single-rooted human mandibular premolars were instrumented with K-files, and each root canal was filled with gutta-percha and AH Plus (Dentsply Detrey, Konstanz, Germany) sealer using lateral compaction. Specimens were then divided into three experimental groups with twenty specimens each. Groups were then subdivided into ten specimens each. Groups were then retreated either with or without solvent. The removal of gutta-percha was performed using ProTaper retreatment files, Mtwo retreatment files, and R-Endo files after 2 weeks. The amount of root canal filling material remnant in the coronal, middle, and apical thirds was measured using stereomicroscope and computer image analysis program. Statistical Analysis Used: Data were evaluated statistically using analysis of variance. Results: ProTaper group was found to have less remnant filling material as compared to the other groups in coronal and middle thirds, but a significant difference was observed between ProTaper and Mtwo and Mtwo and R-Endo in the nonsolvent groups (P < 0.05). Mtwo group demonstrated less amount of remaining filling material in the nonsolvent group. Conclusions: Both nickel–titanium systems and ProTaper and Mtwo retreatment file systems, were found to be effective in the removal of root canal filling material. However, complete removal of gutta-percha from root canals did not occur with any of the experimental groups.
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Affiliation(s)
- Siddhartha Das
- Department of Conservative Dentistry, North Bengal Dental College and Hospital, Darjeeling, India
| | - Ataide De Ida
- Department of Conservative Dentistry, Goa Dental College and Hospital, Goa, India
| | - Subhasis Das
- Department of Conservative Dentistry, Burdwan Dental College and Hospital, Bardhaman, West Bengal, India
| | - Vineet Nair
- Department of Periodontia, North Bengal Dental College and Hospital, Darjeeling, India
| | - Nairita Saha
- Department of Oral Medicine and Radiology, North Bengal Dental College and Hospital, Darjeeling, India
| | - Sayan Chattopadhyay
- Department of Oral Medicine and Radiology, North Bengal Dental College and Hospital, Darjeeling, India
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Yılmaz K, Özyürek T. Apically Extruded Debris after Retreatment Procedure with Reciproc, ProTaper Next, and Twisted File Adaptive Instruments. J Endod 2017; 43:648-651. [DOI: 10.1016/j.joen.2016.12.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 11/29/2016] [Accepted: 12/04/2016] [Indexed: 11/28/2022]
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Ramos TIF, Câmara AC, Aguiar CM. Evaluation of Capacity of Essential Oils in Dissolving ProTaper Universal Gutta-Percha points. Acta Stomatol Croat 2016; 50:128-133. [PMID: 27789910 DOI: 10.1564/asc50/2/5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
PURPOSE Solvents may be used to remove the filling materials. The purpose of this in vitro study was to evaluate and compare the efficacy of formulated orange oil, orange oil and formulated eucalyptol in dissolving F3 ProTaper Universal Gutta-percha points. MATERIAL AND METHODS 200 samples were used and divided into four groups, further divided in fifty samples for each solvent. The samples were weighed on an analytical balance before being subjected to the action of solvents. Subsequently, they were put onto watch glasses, 7X45mm in length, and immersed into solutions for the following times: 5, 10, 20, 25 and 30 minutes. The loss of mass was recorded by weighing samples after every minute of action of the solvent on the points. Data were statistically analyzed by Kruskal-Wallis test at a significance level of 5%. RESULTS All solvents showed that the first five minutes of action was the period of greatest dissolving power. In terms of immersion time, xylol (control group) exhibited a markedly superior ability in dissolving the gutta-percha points compared to other solvents and, also, showed statistically significant differences. A continuous dissolution was observed in all groups. Formulated orange oil presented a markedly superior solvent effect on filling materials compared to orange oil and formulated eucalyptol; however, there were no statistically significant differences. CONCLUSION Considering the results obtained and methodology employed, it can be concluded that xylol was the most effective solvent in dissolving gutta-percha points, followed by formulated orange oil, orange oil and formulated eucalyptol oil.
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Affiliation(s)
- Thaís Isabel Ferreira Ramos
- Department of Prosthetics and Oral and Facial Surgery, Faculty of Dentistry, Federal University of Pernambuco, Recife, Brazil
| | - Andréa Cruz Câmara
- Department of Prosthetics and Oral and Facial Surgery, Faculty of Dentistry, Federal University of Pernambuco, Recife, Brazil
| | - Carlos Menezes Aguiar
- Department of Prosthetics and Oral and Facial Surgery, Faculty of Dentistry, Federal University of Pernambuco, Recife, Brazil
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Yadav HK, Yadav RK, Chandra A, Thakkar RR. The effectiveness of eucalyptus oil, orange oil, and xylene in dissolving different endodontic sealers. J Conserv Dent 2016; 19:332-7. [PMID: 27563181 PMCID: PMC4979279 DOI: 10.4103/0972-0707.186447] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Objective: The objective of this study was to evaluate the dissolution effectiveness of eucalyptus oil, orange oil, xylene, and distilled water on three different endodontic sealers. Materials and Methods: About 240 samples of root canal sealers (eighty for each sealer) were prepared and divided into four groups of 20 each for immersion in different organic solvents. Each group was further subdivided into two subgroups (n = 10) for 2 and 10 min of immersion time. The mean percentage of weight loss was determined for each sealer in each solvent at both time periods. Data were statistically analyzed by two factor analysis of variance and significance of mean difference was obtained by Tukey's post hoc test (P < 0.05). Results: The lowest level of solubility was observed for Adseal followed by Apexit Plus and Endomethasone N at both time periods in all solvents. Apexit Plus showed no significant (P > 0.05) difference in its dissolution in all the organic solvents except distilled water at both the time periods. The solubility profile of Endomethasone N and Adseal did not differ significantly among eucalyptus oil, orange oil, and xylene at 2 min and between eucalyptus oil and orange oil at 10 min. However, at 10 min, Endomethasone N and Adseal showed a more pronounced solubility in xylene as compared to both eucalyptus oil and orange oil. Conclusions: In general, xylene was the most effective in dissolving root canal sealers than other organic solvents. Essential oils (eucalyptus oil and orange oil) were found similar in their ability to dissolve Apexit Plus and Endomethasone N.
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Affiliation(s)
- Hemant Kumar Yadav
- Department of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Rakesh Kumar Yadav
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Anil Chandra
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Rahul Rameshbhai Thakkar
- Department of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
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Çanakçi BC, Ustun Y, Er O, Genc Sen O. Evaluation of Apically Extruded Debris from Curved Root Canal Filling Removal Using 5 Nickel-Titanium Systems. J Endod 2016; 42:1101-4. [DOI: 10.1016/j.joen.2016.03.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 03/10/2016] [Accepted: 03/14/2016] [Indexed: 10/21/2022]
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Evaluation of Apically Extruded Debris during Root Canal Retreatment with Two Different Rotary Systems Followed by a Self-Adjusting File. Int J Artif Organs 2016; 39:68-71. [DOI: 10.5301/ijao.5000467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2016] [Indexed: 11/20/2022]
Abstract
Purpose To compare the amount of apically extruded debris during root canal retreatment using ProTaper retreatment system (Dentsply Maillefer, Ballaigues, Switzerland), ProTaper retreatment system with Self-Adjusting File (SAF) system (ReDent-Nova, Ra'anana, Israel), Mtwo retreatment system (VDW, Munich, Germany), Mtwo retreatment system with SAF instruments. Methods In total, 72 extracted human mandibular incisor teeth were used. All root canals were prepared with ProTaper universal (Dentsply Maillefer) up to F2 file and filled with gutta percha and AH plus sealer using cold lateral condensation before being assembled randomly into 4 groups (n = 18 each). Root canal filling materials were removed using the ProTaper retreatment system, the ProTaper retreatment system followed by SAF system, Mtwo retreatment system and Mtwo retreatment system followed by SAF system. Debris extruded apically during the removal of canal filling material was collected into preweighed Eppendorf tubes. The tubes were then stored in an incubator at 70°C for 5 days. The weight of the dry extruded debris was established by subtracting the preretreatment and postretreatment weight of the Eppendorf tubes for each group. The data obtained were analyzed using Kruskal-Wallis test. Results All retreatment techniques caused the apical extrusion of debris. There was no significant difference between the groups statistically (p>0.05). Conclusions The results of this study showed that SAF system after Mtwo retreatment system and ProTaper retreatment system for improving retreatment has no significant effect on the amount of debris extruded apically.
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Soares C, Maia C, Vale F, Gadê-Neto C, Carvalho L, Oliveira H, Carvalho R. Comparison of Endodontic Retreatment in Teeth Obturated With Resilon or Gutta-Percha: A Review of Literature. IRANIAN ENDODONTIC JOURNAL 2015; 10:221-5. [PMID: 26523136 PMCID: PMC4609657 DOI: 10.7508/iej.2015.04.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Retreatment of endodontically treated teeth is a challenge that requires complete removal of the previous filling material. Several techniques are indicated for this procedure. The present review tries to identify the most efficient method for extirpation of Resilon (RS) root fillings and to compare the speed and efficacy of RS and gutta-percha (GP) root filling removal. METHODS AND MATERIALS Three trained evaluators conducted a search through three major databases (PubMed, Cochrane Library and Lilacs) over the articles published in the period from 2001 to 2014. The search keywords were Epiphany Sealer, Resilon, Retreatment and Removal Procedure. RESULTS Twelve articles were included in the final sample (three in vitro studies and nine randomized trials). CONCLUSION The ProTaper (manual or rotatory) system in combination with chemical solvents is the most efficient method for removing Resilon root filling. Retreatment of Resilon is more rapid and associated with less remnants of debris.
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Affiliation(s)
- Ciro Soares
- Department of Dentistry, Health School, Potiguar University, Natal, Brazil
| | - Conceição Maia
- Department of Dentistry, Health School, Potiguar University, Natal, Brazil
| | - Fábio Vale
- Post-Graduation Program in Odontology, University Potiguar, Laboratory of Dental Materials, Natal, Brazil
| | - Cícero Gadê-Neto
- Department of Dentistry, Health School, Potiguar University, Natal, Brazil
| | - Lilian Carvalho
- Department of Dentistry, Health School, Potiguar University, Natal, Brazil
| | - Hanieri Oliveira
- Department of Dentistry, Health School, Potiguar University, Natal, Brazil
| | - Rejane Carvalho
- Department of Dentistry, Health School, Potiguar University, Natal, Brazil
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Çanakçi BC, Er O, Dincer A. Do the Sealer Solvents Used Affect Apically Extruded Debris in Retreatment? J Endod 2015; 41:1507-9. [PMID: 26238529 DOI: 10.1016/j.joen.2015.02.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 02/05/2015] [Accepted: 02/07/2015] [Indexed: 11/20/2022]
Abstract
INTRODUCTION We evaluated apically extruded debris in the retreatment of root canals filled with different root canal sealers and gutta-percha using different solvents. METHODS Ninety human mandibular central and lateral teeth were prepared using the Reciproc #25 .08 nickel-titanium system (VDW GmbH, Munich, Germany) and were divided randomly into 6 groups. In groups 1, 2, and 3, root canals were filled with epoxy resin-based sealer and gutta-percha, and in groups 4, 5, and 6, root canals were filled with zinc oxide-eugenol-based sealer and gutta-percha. Each tooth was placed in a glass vial experimental apparatus. All root canal fillings were removed with the ProTaper Retreatment nickel-titanium system (Dentsply Maillefer, Ballaigues, Switzerland). During the retreatment procedure, in group 1, Resosolv (Pierre Rolland, Merignac, France) was used; in group 4, Endosolv E (Septodont, Paris, France) was used; and in groups 2 and 5, Guttasolv (Septodont) was used as the solvent. In the control groups (groups 3 and 6), no solvent was used. Reciproc #40 .06 was used for the final preparation. The times required for retreatments were recorded. RESULTS The weight of the extruded debris and the time required for retreatment were decreased significantly in the groups in which a solvent that was intended specifically for the root canal sealer was used (groups 1 and 4). In the Guttasolv groups (groups 2 and 5), the amount of apically extruded debris and the time required decreased for both root canal sealers. CONCLUSIONS The amount of apically extruded debris and the duration of retreatment were reduced by the use of a solvent specific to the sealer compared with a gutta-percha solvent or no solvent.
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Affiliation(s)
- Burhan Can Çanakçi
- Department of Endodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey.
| | - Ozgur Er
- Department of Endodontics, Faculty of Dentistry, Trakya University, Edirne, Turkey
| | - Asiye Dincer
- Department of Endodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
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Kumar P, Kaur NM, Arora S, Dixit S. Evaluation of fracture resistance of roots obturated with resilon and thermoplasticized gutta-percha: An in vitro study. J Conserv Dent 2014; 17:354-8. [PMID: 25125849 PMCID: PMC4127695 DOI: 10.4103/0972-0707.136510] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 04/29/2014] [Accepted: 05/06/2014] [Indexed: 11/21/2022] Open
Abstract
Aim: To investigate and compare the fracture resistance of resilon and realseal filled root canals with those that were obturated with thermoplasticized gutta-percha and AH-plus endodontic sealer. Materials and Methods: Eighty extracted human mandibular single-rooted premolars stored in 10% formalin were used in this study. They were prepared by using a crown-down technique, debrided and irrigated with NaOCl, EDTA, and normal saline and divided into four groups. Group I = Negative control, canals prepared but no obturation was done; Group II = Positive control obturated with dual cure composite resin; Group III = Obturated with thermoplasticized GP and AH-plus; Group IV = Obturated with resilon and realseal. All root specimens were stored for two weeks in 100% humidity to allow for complete setting of the sealer. Each specimen was mounted in acrylic in a polyvinyl ring and tested for fracture resistance with a universal testing machine. The loading fixture of the machine was mounted with its spherical tip aligned with the center of the access opening of each root. A vertical loading force was applied until it fractured the root. The force values were subjected to statistical analysis: Kruskall-Wallis H-test and Mann-Whitney U-test. Results: Group comparison revealed that Group II (positive control) had significantly higher values of resistance to fracture as compared to all the other groups. While Group IV (resilon with realseal) had significantly higher values of resistance to fracture as compared to Group I (negative control). Conclusion: On the basis of our findings, it can be concluded that filling the root canals with resilon and realseal increased the in vitro resistance to fracture of single-canal extracted teeth. resilon and realseal demonstrated high fracture-resistance values and could be an alternative to the conventional gutta-percha.
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Affiliation(s)
- Pravin Kumar
- Department of Conservative Dentistry and Endodontics, Seema Dental College and Hospital, Rishikesh, Pashulok, Uttarakhand, India
| | - Navsangeet Mangat Kaur
- Department of Conservative Dentistry and Endodontics, Seema Dental College and Hospital, Rishikesh, Pashulok, Uttarakhand, India
| | - Saurabh Arora
- Department of Conservative Dentistry and Endodontics, Seema Dental College and Hospital, Rishikesh, Pashulok, Uttarakhand, India
| | - Seema Dixit
- Department of Conservative Dentistry and Endodontics, Seema Dental College and Hospital, Rishikesh, Pashulok, Uttarakhand, India
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