1
|
Lee YJ, Cho KM, Park SH, Lee Y, Kim JW. Nanoleakage of apical sealing using a calcium silicate-based sealer according to canal drying methods. Restor Dent Endod 2024; 49:e20. [PMID: 38841379 PMCID: PMC11148404 DOI: 10.5395/rde.2024.49.e20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/22/2024] [Accepted: 03/03/2024] [Indexed: 06/07/2024] Open
Abstract
Objectives This study investigated the nanoleakage of root canal obturations using calcium silicate-based sealer according to different drying methods. Materials and Methods Fifty-two extracted mandibular premolars with a single root canal and straight root were selected for this study. After canal preparation with a nickel-titanium rotary file system, the specimens were randomly divided into 4 groups according to canal drying methods (1: complete drying, 2: blot drying/distilled water, 3: blot drying/NaOCl, 4: aspiration only). The root canals were obturated using a single-cone filling technique with a calcium silicate-based sealer. Nanoleakage was evaluated using a nanoflow device after 24 hours, 1 week, and 1 month. Data were collected twice per second at the nanoscale and measured in nanoliters per second. Data were statistically analyzed using the Kruskal-Wallis and Mann-Whitney U-tests (p < 0.05). Results The mean flow rate measured after 24 hours showed the highest value among the time periods in all groups. However, the difference in the flow rate between 1 week and 1 month was not significant. The mean flow rate of the complete drying group was the highest at all time points. After 1 month, the mean flow rate in the blot drying group and the aspiration group was not significantly different. Conclusions Within the limitations of this study, the canal drying method had a significant effect on leakage and sealing ability in root canal obturations using a calcium silicate-based sealer. Thus, a proper drying procedure is critical in endodontic treatment.
Collapse
Affiliation(s)
- Yoon-Joo Lee
- Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University, Gangneung, Korea
| | - Kyung-Mo Cho
- Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University, Gangneung, Korea
| | - Se-Hee Park
- Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University, Gangneung, Korea
| | - Yoon Lee
- Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University, Gangneung, Korea
| | - Jin-Woo Kim
- Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University, Gangneung, Korea
| |
Collapse
|
2
|
Vinola SM, Mahalaxmi S. Characterisation and evaluation of physical properties of AH-Plus sealer with and without the incorporation of petasin, pachymic acid, curcumin and shilajit-an invitro study. BMC Oral Health 2024; 24:352. [PMID: 38504287 PMCID: PMC10949824 DOI: 10.1186/s12903-024-04108-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 03/05/2024] [Indexed: 03/21/2024] Open
Abstract
BACKGROUND AH Plus, an epoxy resin-based sealer, is widely used in endodontic practice, owing to its good physical properties that confers longstanding dimensional stability and good adhesion to dentin. Nevertheless, its propensity to trigger inflammation, especially in its freshly mixed state, has been extensively documented. Phytochemicals such as Petasin, Pachymic acid, Curcumin, and Shilajit are known for their anti-inflammatory and analgesic effects. This study aimed to analyze and determine the effect of these natural products on the physical properties of AH Plus sealer when incorporated with the sealer. METHODS AH Plus (AHR) sealer was mixed with 10% petasin, 0.75% pachymic, 0.5% and 6%shilajit to obtain AHP, AHA, AHC and AHS in the ratio of 10:1 and 5:1 respectively. Five samples of each material were assessed for setting time, solubility, flow, and dimensional stability in accordance with the ISO 6876:2012 standardization. Sealers were characterized through scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy, X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. Statistical evaluation involved the Kolmogorov-Smirnov and Shapiro-Wilks tests for normality and the one-way ANOVA test for analysis. RESULTS In this investigation, the characterisation analysis revealed a relatively similar microstructure in all the experimental root canal sealers. All experimental groups, excluding the control group, exhibited an increase in flow ranging from 11.9 to 31.4% at a 10:1 ratio. Similarly, for the 5:1 ratio, the increase ranged from 12.02 to 31.83%. In terms of dimensional stability, all groups at the 10:1 ratio showed a decrease compared to the control group. The addition of natural agents to AHR in 10:1 ratio led to a reduction in setting time by 8.9-31.6%, and at a 5:1 ratio, the reduction ranged from 8.1 to 31.5%. However, regarding solubility, the addition of natural agents did not induce any significant alterations. CONCLUSION Based on the results of this study, it can be concluded that all tested root canal sealers exhibited properties that met the acceptable criteria outlined in the ISO 6876:2012 standardization.
Collapse
Affiliation(s)
- Selvanathan Mj Vinola
- Department of Conservative Dentistry and Endodontics, SRM Dental College, Bharathi Salai, Chennai, Tamil Nadu, 600089, India
| | - Sekar Mahalaxmi
- Department of Conservative Dentistry and Endodontics, SRM Dental College, Bharathi Salai, Chennai, Tamil Nadu, 600089, India.
| |
Collapse
|
3
|
Verma A, Arora A, Taneja S. Comparative evaluation of dentinal tubule penetration and push-out bond strength of new injectable hydraulic calcium disilicate based root canal sealer: A single blinded in vitro study. J Oral Biol Craniofac Res 2024; 14:143-151. [PMID: 38333088 PMCID: PMC10850956 DOI: 10.1016/j.jobcr.2024.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 01/08/2024] [Accepted: 01/17/2024] [Indexed: 02/10/2024] Open
Abstract
Objective To evaluate and compare dentinal tubule penetration and push-out bond strength of BIO-C ION+, AH Plus and NanoSeal-S using Confocal Laser Scanning Microscopy (CLSM) and Universal Testing Machine (UTM). Materials & method Sixty human mandibular premolars were prepared using ProTaper Gold till F3. Samples were then divided into 3 groups: Group I (n = 20) BIO-C ION + sealer, Group II (n = 20) AH Plus and Group III (n = 20) NanoSeal-S sealer. Groups were then sub-divided into two sub groups: In Subgroup A (n = 10) samples were obturated using single-cone with 0.1 % Rhodamine B dye and in Subgroup B (n = 10) samples were obturated using single cone. The samples were then transversely sectioned into coronal, middle and apical segments, samples in subgroup A & B were then submitted to CLSM analysis and UTM respectively. Results The Bond Strength data showed following means (MPa): Group I Subgroup B: (BIO-C ION+) coronal (1.64), middle (1.25), apical (0.93); Group II Subgroup B: (AH Plus) coronal (2.20), middle (1.85) apical (1.38) and Group III Subgroup B: (NanoSeal-S) coronal (1.26), middle (0.94), apical (0.58). The dentinal tubule penetration data showed following means: (μm) Group I Subgroup A (BIO-C ION+) coronal (1184.69), middle (997.03), apical (637.26); Group II Subgroup-A AH Plus (864.14) and NanoSeal-S (495.64). Statistical analysis (two-way ANOVA, Tukey's Post Hoc Test) showed significant difference among sealers (p < 0.001) and root canal thirds (p < 0.001). Conclusion The results of the study concluded that BIO-C ION + sealer showed maximum dentinal tubule penetration and AH Plus demonstrated maximum push-out bond strength.
Collapse
Affiliation(s)
- Aman Verma
- I.T.S dental college and research centre, murad nagar, Ghaziabad, uttar pradesh, India
| | - Anshul Arora
- department of conservative dentistry and endodontics, I.T.S dental college and research centre, murad nagar, Ghaziabad, uttar pradesh, India
| | - Sonali Taneja
- department of conservative dentistry and endodontics, I.T.S dental college and research centre, murad nagar, Ghaziabad, uttar pradesh, India
| |
Collapse
|
4
|
Radwanski M, Rozpedek-Kaminska W, Galita G, Siwecka N, Sokolowski J, Majsterek I, Özcan M, Lukomska-Szymanska M. Cytotoxicity and genotoxicity of bioceramic root canal sealers compared to conventional resin-based sealer. Sci Rep 2024; 14:4124. [PMID: 38374199 PMCID: PMC10876547 DOI: 10.1038/s41598-024-54726-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 02/15/2024] [Indexed: 02/21/2024] Open
Abstract
The aim of this study was to evaluate cytotoxicity and genotoxicity of calcium-silicate based sealers and comparing them with a gold standard-an epoxy-based sealant. Two experimental cell lines were used, gingival fibroblasts (hGF) and monocyte/macrophage peripheral blood cell line (SC). The cytotoxicity (XTT assay) and genotoxicity (comet assay) were evaluated both after 24-h and 48-h incubation. Additionally, after 48-h incubation, the cell apoptosis and cell cycle progression was detected. BioRoot Flow induced a significant decrease in hGF cells viability compared to the negative control groups both after 24-h (p < 0.001) and 48-h incubation (p < 0.01). In group with SC cells, after 24-h incubation significant increase in cells viability was detected for AH Plus Bioceramic Sealer in comparison to negative control (p < 0.05). BioRoot Flow and BioRoot RCS can be considered potentially genotoxic for the hGF cells after 48-h incubation (> 20% DNA damage). BioRoot Flow and BioRoot RCS, may have potential genotoxic effects and induce apoptosis in hGF cells which may irritate periapical tissues, resulting in a delayed healing. The findings of the study would be useful in selection of an appropriate sealant for root canal filling without causing cytotoxicity and genotoxicity.
Collapse
Affiliation(s)
| | | | - Grzegorz Galita
- Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, Lodz, Poland
| | - Natalia Siwecka
- Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, Lodz, Poland
| | - Jerzy Sokolowski
- Department of General Dentistry, Medical University of Lodz, 251 Pomorska Str., 92-213, Lodz, Poland
| | - Ireneusz Majsterek
- Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, Lodz, Poland
| | - Mutlu Özcan
- Clinic of Masticatory Disorders and Dental Biomaterials, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Monika Lukomska-Szymanska
- Department of General Dentistry, Medical University of Lodz, 251 Pomorska Str., 92-213, Lodz, Poland.
| |
Collapse
|
5
|
Chew ST, Eshak Z, Al-Haddad A. Evaluation of interfacial adaptation and penetration of bioceramic-based sealers in oval root canals: A confocal laser scanning microscope study. Microsc Res Tech 2023; 86:754-761. [PMID: 37078493 DOI: 10.1002/jemt.24323] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 02/06/2023] [Accepted: 03/26/2023] [Indexed: 04/21/2023]
Abstract
To assess the interfacial adaptation and penetration depth of three different bioceramic-based sealers (CeraSeal, EndoSeal MTA, Nishika Canal Sealer BG) compared to an epoxy resin-based sealer (AH Plus) in oval root canals. Fourty extracted single-rooted mandibular premolar with oval canal were prepared and randomly allocated according to the obturation into; CeraSeal, EndoSeal MTA, Nishika Canal Sealer BG and AH Plus. The roots were sectioned at 3, 6 and 9 mm from the apex. The sealer adaptation and the penetration depth were evaluated under confocal laser scanning microscope. One-way ANOVA and Repeated measure ANOVA were used to statistically analyze the data. Nishika Canal Sealer BG showed significantly higher sealer adaptation than EndoSeal MTA (P < .001) at apical and middle thirds. Meanwhile, AH Plus showed significantly higher sealer adaptation than EndoSeal MTA (P = 0.011) at middle third. For sealer penetration, Nishika Canal Sealer BG showed the longest sealer penetration that was significant compared to AH Plus (P < .001) and EndoSeal MTA (P < .001) whereas CeraSeal was significantly higher than EndoSeal MTA (P = 0.029) at coronal third. For AH Plus, there was a significant less sealer penetration at coronal third compared to apical and middle thirds (P < .05). Whereas for EndoSeal MTA, the coronal third has significant less penetration compared to the middle third (P = 0.032). Endoseal has the lowest adaptation and penetration depth. Nishika Canal Sealer BG has better adaptation and penetration depth using single cone obturation technique in oval canal. RESEARCH HIGHLIGHTS: All the tested root canal sealers have some percentage of gaps and vary in their penetration capability into dentinal tubules. Nishika Canal Sealer BG has significantly better sealer adaptation to root dentinal walls than that of EndoSeal MTA at the apical and middle third but not significantly different from other type of sealers used. Nishika Canal Sealer BG has significantly better penetration depth than AH Plus and EndoSeal MTA at the coronal third of radicular dentin.
Collapse
Affiliation(s)
- Soo Teng Chew
- Department of Restorative Dentistry, Faculty of Dentistry, National University of Malaysia, Kuala Lumpur, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Zolkapli Eshak
- Department of Pharmacology and Pharmaceutical Chemistry, Faculty of Pharmacy, University Teknologi MARA Puncak Alam, Selangor, Malaysia
| | - Afaf Al-Haddad
- Department of Conservative Dentistry, Faculty of Dentistry, MAHSA University, Selangor, Malaysia
| |
Collapse
|
6
|
Çakir A. Effect of cleaning materials on microtensile bond strength of resin composite to primary dentin contaminated with root canal sealers. BMC Oral Health 2023; 23:396. [PMID: 37328843 PMCID: PMC10273635 DOI: 10.1186/s12903-023-03090-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 05/31/2023] [Indexed: 06/18/2023] Open
Abstract
BACKGROUND There have been no studies on the bond strength of adhesives with dentin surfaces contaminated with root canal sealers in primary teeth without underlying permanent teeth germs. This study investigated the cleaning materials used for primary tooth dentin contaminated with root canal sealers. The aim was to increase the success rate of root canal treatment in pedodontics clinics and retain the teeth for longer. METHODS The occlusal enamel layer was removed, followed by the application of root canal sealers (AH Plus or MTA Fillapex) to the dentin and cleaning using different irrigation solutions (saline, NaOCl, and ethanol). The specimens were restored using a self-etch adhesive and composite. Sticks with a thickness of approximately 1 mm were obtained from each sample, and the bond strengths were measured using a microtensile testing device. The interfacial morphology of the bonded space was evaluated using scanning electron microscopy. RESULTS The control and AH Plus saline groups had the highest bond strengths. The groups cleaned using ethanol had the lowest bond strengths (p < 0.01). CONCLUSION Cleaning the dentin with saline-soaked cotton pellets provided the best bond strengths. Therefore, saline is the most effective material for removing both epoxy resin- and calcium silicate-based root canal sealers from the access cavity.
Collapse
Affiliation(s)
- Asu Çakir
- Department of Pediatric Dentistry, Ahmet Keleşoğlu Faculty of Dentistry, Karamanoğlu Mehmetbey University, Yunus Emre Campus, Karaman, Türkiye.
| |
Collapse
|
7
|
Horhat RM, Bumbu BA, Orel L, Velea-Barta O, Cirligeriu L, Chicin GN, Pricop M, Rivis M, Dinu S, Horhat DI, Bratosin F, Fericean RM, Negrean RA, Nica LM. Assessing the Sealing Performance and Clinical Outcomes of Endodontic Treatment in Patients with Chronic Apical Periodontitis Using Epoxy Resin and Calcium Salicylate Seals. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1137. [PMID: 37374341 DOI: 10.3390/medicina59061137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/07/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023]
Abstract
Background and Objectives: Recognizing the significance of a hermetic apical seal for successful root canal treatment, the present investigation aimed to evaluate two sealing materials through an in vitro analysis, as well as to ascertain the clinical outcomes of patients treated with these two sealers in an in vivo setting. Materials and Methods: For the in vitro part of the study, two control groups of thirty monoradicular teeth were obturated with two sealers. Then, the sealers' performance was tested based on a predefined protocol. Group A included 30 patients treated with an epoxy oligomer resin-based sealer (Adseal, MetaBiomed), while Group S comprised 30 patients treated with a polymeric calcium salicylate-based sealer (Sealapex, Kerr). Samples were sectioned and evaluated under the microscope to determine the sealer's tightness by measuring the dye penetration into the root canal filling. For the in vivo part, a prospective study was designed to include 60 patients with chronic apical periodontitis in two endodontic treatment groups, using the same two sealers. Results: The in vitro analysis found that dye penetration in Group A was 0.82 mm (±0.428), while in Group S, the dye penetration was statistically significantly deeper, being 1.23 mm (±0.353). In the in vivo part of the study, the periapical index (PAI) significantly decreased 6 months after endodontic treatment, with 80.0% of patients in Group A having a PAI score of 2 compared to only 56.7% in Group S (p-value = 0.018). Similarly, tooth mobility scores significantly decreased after treatment, but with no difference between groups. The marginal bone loss decreased significantly more in the Adseal group compared to the Sealapex group (23.3% vs. 50.0%, p-value = 0.032). At the same time, 40.0% of patients in Group S had failed tooth healing compared to only 13.3% in Group A (p-value = 0.048). Conclusions: The in vitro study showed that Adseal had a better sealing capacity and a lower degree of dye penetration compared to Sealapex. However, on clinical evaluation in the in vivo study, both patient groups exhibited significant improvements in periapical index, tooth mobility scores, and pain reduction following endodontic treatment. Nevertheless, patients treated with Adseal showed a significantly greater improvement in PAI values, tooth mobility, and teeth healing after treatment. Overall, Adseal, as an endodontic sealer, may provide better sealing capabilities and enhanced clinical outcomes in the treatment of chronic apical periodontitis.
Collapse
Affiliation(s)
- Razvan Mihai Horhat
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
- Advanced and Digital Endodontic, Restorative and Prosthodontic Treatment (TADERP) Research Center, Department of Conservative Dentistry and Endodontics, Faculty of Dental Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Bogdan Andrei Bumbu
- Department of Dental Medicine, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
| | - Laura Orel
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Oana Velea-Barta
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Laura Cirligeriu
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
- Advanced and Digital Endodontic, Restorative and Prosthodontic Treatment (TADERP) Research Center, Department of Conservative Dentistry and Endodontics, Faculty of Dental Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Gratiana Nicoleta Chicin
- Faculty of General Medicine, "Vasile Goldis" Western University of Arad, Bulevardul Revolutiei 94, 310025 Arad, Romania
- National Institute of Public Health, Strada Doctor Leonte Anastasievici 1-3, 050463 Bucharest, Romania
| | - Marius Pricop
- Discipline of Oral and Maxillo-Facial Surgery, Faculty of Dental Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Mircea Rivis
- Department of Anesthesiology and Oral Surgery, Multidisciplinary Center for Research, Evaluation, Diagnosis and Therapies in Oral Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Stefania Dinu
- Department of Pediatric Dentistry, Faculty of Dental Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Delia Ioana Horhat
- ENT Department, "Victor Babes" University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Square, 300041 Timisoara, Romania
| | - Felix Bratosin
- Department of Infectious Diseases, "Victor Babes" University of Medicine and Pharmacy, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | - Roxana Manuela Fericean
- Department of Infectious Diseases, "Victor Babes" University of Medicine and Pharmacy, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| | | | - Luminita Maria Nica
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
- Advanced and Digital Endodontic, Restorative and Prosthodontic Treatment (TADERP) Research Center, Department of Conservative Dentistry and Endodontics, Faculty of Dental Medicine, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania
| |
Collapse
|
8
|
Rodrigues Schneider L, da Silva Barboza A, Ribeiro de Andrade JS, Coelho Dos Santos D, Cuevas-Suárez CE, Piva E, Campos AD, Lund RG. Antibacterial activity and physicochemical properties of a sealer containing copaiba oil. BIOFOULING 2023; 39:110-120. [PMID: 36946247 DOI: 10.1080/08927014.2023.2189012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 03/01/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
This study aimed to evaluate the antimicrobial activity and physicochemical properties of a novel dual-cure endodontic sealer containing copaiba oil. The copaiba oil was obtained and characterized by gas chromatography (GC), and the minimum inhibitory concentration (MIC) was performed. The experimental sealers were formulated with copaiba oil concentrations of 0, 0.5, 1, and 2%, and the RealSeal™ (Sybron endo, Orange, USA) and AH Plus (Dentsply De Trey Gmbh, Konstanz, Germany) were used as the commercial references. The antimicrobial activity of the sealers was evaluated by the direct contact test for 1h and 24h. To evaluate the physicochemical properties of the sealers, the degree of conversion, setting time, film thickness, dimensional stability, and radiopacity tests were performed. The data were statistically analyzed by one-way ANOVA and Tukey's test (α = 0.05). Concerning the results, the sealers containing copaiba oil showed antimicrobial activity without harming the physicochemical properties.
Collapse
Affiliation(s)
- Lara Rodrigues Schneider
- Post-Graduate Program in Biochemistry and Bioprospection, Laboratory of Oral Microbiology, Pelotas Dental School, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Andressa da Silva Barboza
- Post-Graduate Program in Dentistry, Pelotas Dental School, Federal University of Pelotas, Pelotas, RS, Brazil
| | | | - Daniela Coelho Dos Santos
- Post-Graduate Program in Biochemistry and Bioprospection, Laboratory of Oral Microbiology, Pelotas Dental School, Federal University of Pelotas, Pelotas, RS, Brazil
| | | | - Evandro Piva
- Post-Graduate Program in Dentistry, Pelotas Dental School, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Angela Diniz Campos
- Brazilian Agricultural Research Corporation - Embrapa, Embrapa Temperate Agriculture - CPACT, Pelotas, RS, Brazil
| | - Rafael Guerra Lund
- Post-Graduate Program in Biochemistry and Bioprospection, Laboratory of Oral Microbiology, Pelotas Dental School, Federal University of Pelotas, Pelotas, RS, Brazil
- Post-Graduate Program in Dentistry, Pelotas Dental School, Federal University of Pelotas, Pelotas, RS, Brazil
| |
Collapse
|
9
|
Eğemen A, Belli S. The Effect of Primary Root Canal Treatment on Dentinal Tubule Penetration of Calcium Silicate-based Sealers during Endodontic Retreatment. J Endod 2022; 48:1169-1177. [PMID: 35667566 DOI: 10.1016/j.joen.2022.05.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 05/22/2022] [Accepted: 05/26/2022] [Indexed: 12/31/2022]
Abstract
INTRODUCTION The aim of this study was to evaluate the effect of previous root canal treatment on dentinal tubule penetration of calcium silicate-based sealers during endodontic retreatment and to compare 2 different (commonly used and modified) tubule penetration depth measurement techniques. METHODS The crowns of mandibular premolar teeth were removed, and root canals were prepared (ProTaper Universal; Dentsply Sirona, York, PA) and obturated using AH Plus (AH; Dentsply DeTrey, Konstanz, Germany), MTA Fillapex (MTAF; Angelus, Londrina, Brazil), and WellRoot ST (WRST; Vericom, Gyeonggi-do, South Korea); 0.1% red Rhod-2 dye (Chemodex, St Gallen, Switzerland) was added to the sealers. After storage for 3 weeks (37°C, 100% humid), the following sealer combination subgroups were created (the sealer used during the primary root canal treatment/the sealer used during the retreatment, n = 8): AH/AH, AH/MTAF, and AH/WRST; MTAF/AH, MTAF/MTAF, and MTAF/WRST; and WRST/AH, WRST/MTAF, and WRST/WRST. Green Fluo-3 dye (0.1%) was added to the sealers during retreatment. Sealer penetration depths were measured at 8 points and averaged, and the ratio of the retreatment sealer to the initial sealer was recorded as the mean tubule penetration depth ratio in the first technique, whereas the percentage of the circumferential penetration area ratios of the retreatment and initial sealers was calculated in the second technique. Statistical analyses were performed using Kolmogorov-Smirnov, Kruskal-Wallis, and Mann-Whitney U tests. RESULTS The mean penetration depth of AH and MTFA was found to be higher at the coronal third region in the control groups (P < .05). Both methods showed a significant difference among the groups at the coronal and median regions (P < .05). The AH/WRST, MTAH/AH, MTAF/MTAF, MTAF/WRSTS, and WRST/WRST groups showed deeper tubule penetration (first technique, P = .01). Both techniques showed that the penetration depth of the sealers was the same at the apical region (P > .05), whereas a difference was found among the techniques at the coronal and median regions. The sealers used in the previous root canal treatment limited the penetration depth of the sealers used during the retreatment process (P < .05). When MTAF was used as the initial sealer, the penetration depth of the second sealer did not change, whereas if WRST was the initial sealer, the penetration depth of the sealers at the median and apical regions is negatively affected during the retreatment process (P < .05). CONCLUSIONS Previous root canal treatment affects the penetration depth of calcium silicate-based sealers. The use of AH Plus and MTA Fillapex during the retreatment process showed an advantage. Both measurement techniques showed similar performances at the apical region, whereas the results varied at the coronal and midcoronal regions; therefore, a more stable sealer penetration measurement technique is still necessary.
Collapse
Affiliation(s)
- Ayşenur Eğemen
- Department of Endodontics, Selçuk University, Konya, Turkey
| | - Sema Belli
- Department of Endodontics, Selçuk University, Konya, Turkey.
| |
Collapse
|
10
|
Lim M, Jung C, Shin DH, Cho YB, Song M. Calcium silicate-based root canal sealers: a literature review. Restor Dent Endod 2020; 45:e35. [PMID: 32839716 PMCID: PMC7431927 DOI: 10.5395/rde.2020.45.e35] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/20/2019] [Accepted: 10/24/2019] [Indexed: 12/23/2022] Open
Abstract
Epoxy resin-based sealers are currently widely used, and several studies have considered AH Plus to be the gold-standard sealer. However, it still has limitations, including possible mutagenicity, cytotoxicity, inflammatory response, and hydrophobicity. Drawing upon the advantages of mineral trioxide aggregate, calcium silicate-based sealers were introduced with high levels of biocompatibility and hydrophilicity. Because of the hydrophilic environment in root canals, water resorption and solubility of root canal sealers are important factors contributing to their stability. Sealers displaying lower microleakage and stronger push-out bond strength are also needed to endure the dynamic tooth environment. Although the physical properties of calcium silicate-based sealers meet International Organization for Standardization recommendations, and they have consistently reported to be biocompatible, they have not overcome conventional resin-based sealers in actual practice. Therefore, further studies aiming to improve the physical properties of calcium silicate-based sealers are needed.
Collapse
Affiliation(s)
- Miyoung Lim
- Department of Conservative Dentistry, College of Dentistry, Dankook University, Cheonan, Korea
| | - Chanyong Jung
- Department of Conservative Dentistry, College of Dentistry, Dankook University, Cheonan, Korea
| | - Dong-Hoon Shin
- Department of Conservative Dentistry, College of Dentistry, Dankook University, Cheonan, Korea
| | - Yong-bum Cho
- Department of Conservative Dentistry, College of Dentistry, Dankook University, Cheonan, Korea
| | - Minju Song
- Department of Conservative Dentistry, College of Dentistry, Dankook University, Cheonan, Korea
| |
Collapse
|
11
|
Torres FFE, Guerreiro-Tanomaru JM, Bosso-Martelo R, Espir CG, Camilleri J, Tanomaru-Filho M. Solubility, Porosity, Dimensional and Volumetric Change of Endodontic Sealers. Braz Dent J 2019; 30:368-373. [PMID: 31340227 DOI: 10.1590/0103-6440201902607] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 03/03/2019] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to evaluate physical properties of endodontic sealers (AH Plus, MTA Fillapex and Endofill), by conventional and micro-CT tests. Dimensional stability was evaluated after immersion of materials in distilled water for 30 days. Solubility and volumetric change were evaluated after 7 and 30 days of immersion in distilled water. Solubility was evaluated by means of mass loss and volumetric change was assessed by micro-CT. Porosity was evaluated under a microscope after 7 days of immersion in distilled water, and by using micro-CT after setting and immersion in distilled water for 7 and 30 days. Statistical analysis was performed by ANOVA and Tukey's test with 5% significance level. MTA Fillapex presented the highest solubility (p<0.05), showing values above the ISO/ADA recommendations. MTA Fillapex presented higher volumetric and dimensional changes, followed by Endofill and AH Plus (p<0.05). Dimensional stability of the MTA Fillapex and AH Plus did not follow ISO/ADA standards. The highest total porosity was observed for MTA Fillapex (p<0.05). Endofill had higher total porosity than AH Plus according to microscope evaluation (p<0,05), and both sealers were similar in micro-CT assessment (p>0,05). In conclusion, MTA Fillapex presented higher solubility, dimensional and volumetric change besides porosity compared to the other evaluated sealers. The assessed physical properties of sealers are related, and the different tests provided complementary data. Micro-CT is a valuable method for assessment of physical properties of endodontic materials.
Collapse
Affiliation(s)
| | | | - Roberta Bosso-Martelo
- Department of Dentistry, School of Dentistry, UFBA - Universidade Federal da Bahia, Salvador, BA, Brazil
| | - Camila Galletti Espir
- Department of Restorative Dentistry, School of Dentistry, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Josette Camilleri
- School of Dentistry, Institute of Clinical Sciences, College of Clinical and Medical Sciences, University of Birmingham, Edgbaston, Birmingham, UK
| | - Mario Tanomaru-Filho
- Department of Restorative Dentistry, School of Dentistry, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
| |
Collapse
|
12
|
Razdan A, Benetti AR, Bjørndal L. Do in vitro solubility studies on endodontic sealers demonstrate a high level of evidence? A systematic review. Acta Odontol Scand 2019; 77:253-263. [PMID: 30849267 DOI: 10.1080/00016357.2018.1538535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
OBJECTIVE To systematically review the quality of evidence of available in vitro solubility studies on endodontic sealers according to prespecified evidence criteria. MATERIAL AND METHODS This systematic review was based on the PRISMA guidelines and the AMSTAR measurement tool. A systematic duplicate search of the literature on endodontic sealer solubility studies was conducted in PubMed and Embase databases (until 18 October 2017). Mapping terms to subject headings and free text terms were used and combined with hand searching before exclusion of duplicates. Studies specifically dealing with endodontic sealer solubility were selected. The evidence level was graded (low, medium or high) independently by two investigators following systematic data extraction in pilot forms, which was based on prespecified evidence criteria and the modified CONSORT checklist for in vitro studies on dental materials. RESULTS The search retrieved 1053 articles, from which 88 were assessed in full. From the 63 articles retained in the final analysis, 11 were classified as having moderate and 52 as low quality of evidence (0 high). The studies graded as low had low sample size (n < 10) and/or insufficient details to allow replicability. Most of the studies did not conform to the modified CONSORT checklist and did not include parameters considered relevant in the prespecified criteria. CONCLUSIONS Existing in vitro studies on the solubility of endodontic sealers do not demonstrate a high quality of evidence. Most of these studies do not present systematic reporting nor employ relevant parameters prespecified in our evidence criteria.
Collapse
Affiliation(s)
- Ankur Razdan
- Section of Cariology and Endodontics, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Section of Dental Materials, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ana Raquel Benetti
- Section of Dental Materials, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lars Bjørndal
- Section of Cariology and Endodontics, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
13
|
Saraiva JA, da Fonseca TS, da Silva GF, Sasso-Cerri E, Guerreiro-Tanomaru JM, Tanomaru-Filho M, Cerri PS. Reduced interleukin-6 immunoexpression and birefringent collagen formation indicate that MTA Plus and MTA Fillapex are biocompatible. Biomed Mater 2018; 13:035002. [DOI: 10.1088/1748-605x/aaa1f5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
14
|
Huang Y, Celikten B, de Faria Vasconcelos K, Ferreira Pinheiro Nicolielo L, Lippiatt N, Buyuksungur A, Jacobs R, Orhan K. Micro-CT and nano-CT analysis of filling quality of three different endodontic sealers. Dentomaxillofac Radiol 2017; 46:20170223. [PMID: 28845679 PMCID: PMC5965939 DOI: 10.1259/dmfr.20170223] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 07/23/2017] [Accepted: 08/07/2017] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES To investigate voids in different root canal sealers using micro-CT and nano-CT, and to explore the feasibility of using nano-CT for quantitative analysis of sealer filling quality. METHODS 30 extracted mandibular central incisors were randomly assigned into three groups according to the applied root canal sealers (Total BC Sealer, Sure Seal Root, AH Plus) by the single cone technique. Subsequently, micro-CT and nano-CT were performed to analyse the incidence rate of voids, void fraction, void volume and their distribution in each sample. RESULTS Micro-CT evaluation showed no significant difference among sealers for the incidence rate of voids or void fraction in the whole filling materials (p > 0.05), whereas a significant difference was found between AH Plus and the other two sealers using nano-CT (p < 0.05). All three sealers presented less void volume in the apical third; however, higher void volumes were observed in the apical and coronal thirds in AH Plus using micro-CT (p < 0.05), while nano-CT results displayed higher void volume in AH Plus among all the sealers and regions (p < 0.05). CONCLUSIONS Bioactive sealers showed higher root filling rate, lower incidence rate of voids, void fraction and void volume than AH Plus under nano-CT analysis, when round root canals were treated by the single cone technique. The disparate results suggest that the higher resolution of nano-CT have a greater ability of distinguishing internal porosity, and therefore suggesting the potential use of nano-CT in quantitative analysis of filling quality of sealers.
Collapse
Affiliation(s)
| | | | | | | | - Nicholas Lippiatt
- BIOMATEN and Department of Biotechnology, Middle East Technical University, Ankara, Turkey
| | - Arda Buyuksungur
- Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | - Kaan Orhan
- Department of DentoMaxillofacial Radiology, Ankara University, Ankara, Turkey
| |
Collapse
|
15
|
Tanomaru-Filho M, Torres FFE, Chávez-Andrade GM, de Almeida M, Navarro LG, Steier L, Guerreiro-Tanomaru JM. Physicochemical Properties and Volumetric Change of Silicone/Bioactive Glass and Calcium Silicate-based Endodontic Sealers. J Endod 2017; 43:2097-2101. [PMID: 29032816 DOI: 10.1016/j.joen.2017.07.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 07/02/2017] [Accepted: 07/05/2017] [Indexed: 12/20/2022]
Abstract
INTRODUCTION This study evaluated setting time (ST), radiopacity, pH, flow, solubility, and volumetric change (VC) of a silicone, gutta-percha, and bioactive glass-based sealer, GuttaFlow Bioseal (GFB), and a calcium silicate-based sealer, TotalFill BC Sealer (TFBC), in comparison with AH Plus. METHODS ST and flow were evaluated in accordance with the ISO 6876 Standard. pH was evaluated after different time intervals (1, 3, 7, 14, 21, and 28 days). Radiopacity was evaluated by radiographic analysis in millimeters of aluminum. Solubility was evaluated by means of mass loss (%) after 7 and 30 days of immersion in distilled water. VC was evaluated by micro-computed tomography, by using cavities 3 mm deep and 1 mm in diameter in acrylic resin, filled with the materials. The materials were evaluated after setting and after 7 and 30 days of immersion in distilled water. The data were submitted to analysis of variance and Tukey statistical tests (P < .05). RESULTS TFBC demonstrated the highest pH and solubility. GFB had the shortest ST, and lowest radiopacity and flow values. VC was similar for the sealers in both time intervals. CONCLUSIONS TFBC presented the highest pH and solubility, but showed similar VC to GFB and AH Plus. GFB showed proper physicochemical properties. Micro-computed tomography complements the physicochemical analysis of endodontic sealers.
Collapse
Affiliation(s)
- Mario Tanomaru-Filho
- Department of Restorative Dentistry, Araraquara Dental School, São Paulo State University, Araraquara, São Paulo, Brazil.
| | | | | | - Madelise de Almeida
- Department of Restorative Dentistry, Araraquara Dental School, São Paulo State University, Araraquara, São Paulo, Brazil
| | - Luciana Guilherme Navarro
- Department of Restorative Dentistry, Araraquara Dental School, São Paulo State University, Araraquara, São Paulo, Brazil
| | - Liviu Steier
- Warwick Medical School, The University of Warwick, Coventry, UK
| | | |
Collapse
|
16
|
Physicochemical Properties of Epoxy Resin-Based and Bioceramic-Based Root Canal Sealers. Bioinorg Chem Appl 2017; 2017:2582849. [PMID: 28210204 PMCID: PMC5292198 DOI: 10.1155/2017/2582849] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 12/08/2016] [Indexed: 11/26/2022] Open
Abstract
Three bioceramic sealers (EndoSequence BC sealer, EndoSeal MTA, and MTA Fillapex) and three epoxy resin-based sealers (AH-Plus, AD Seal, and Radic-Sealer) were tested to evaluate the physicochemical properties: flow, final setting time, radiopacity, dimensional stability, and pH change. The one-way ANOVA and Tukey's post hoc test were used to analyze the data (P = 0.05). The MTA Fillapex sealer had a highest flow and the BC Sealer presented a flow significantly lower than the others (P < 0.05). The BC Sealer and MTA Fillapex samples were not set in humid incubator condition even after one month. EndoSeal MTA had the longest setting time among the measurable materials and Radic-Sealer and AD Seal showed shorter setting time than the AH-Plus (P < 0.05). AH-Plus and EndoSeal MTA showed statistically higher values and MTA Fillapex showed statistically lower radiopacity (P < 0.05). BC Sealer showed the highest alkaline pH in all evaluation periods. Set samples of 3 epoxy resin-based sealers and EndoSeal MTA presented a significant increase of pH over experimental time for 4 weeks. In conclusion, the bioceramic sealer and epoxy resin-based sealers showed clinical acceptable physicochemical properties, but BC Sealer and MTA Fillapex were not set completely.
Collapse
|
17
|
Awaad AS, AL-Mudhayyif HA, Al-Othman MR, Zain ME, El-Meligy RM. Amhezole, A Novel Fungal Secondary Metabolite fromAspergillus terreusfor Treatment of Microbial Mouth Infection. Phytother Res 2017; 31:395-402. [DOI: 10.1002/ptr.5760] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 11/20/2016] [Accepted: 11/28/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Amani S. Awaad
- Pharmacognosy Department, College of Pharmacy; Sattam Bin Abdulaziz University; Al-Kharj Saudi Arabia
| | - Hind A. AL-Mudhayyif
- Microbiology Department, Faculty of Science; King Saud University; Riyadh Saudi Arabia
| | - Monerah R. Al-Othman
- Microbiology Department, Faculty of Science; King Saud University; Riyadh Saudi Arabia
| | - Mohamed E. Zain
- Botany and Microbiology Department, Faculty of Science; Al-Azhar University; Cairo Egypt
| | - Reham M. El-Meligy
- Aromatic and Medicinal Plants Department; Desert Research Center; Cairo Egypt
| |
Collapse
|
18
|
Zogheib C, Hanna M, Pasqualini D, Naaman A. Quantitative volumetric analysis of cross-linked gutta-percha obturators. ANNALI DI STOMATOLOGIA 2017; 7:46-51. [PMID: 28149450 DOI: 10.11138/ads/2016.7.3.046] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
AIM The purpose of this study was to evaluate the effects of technique on the filling quality of 2 recently introduced obturation systems comparatively with warm vertical compaction using micro-computed tomography. METHODS 36 single-rooted teeth were selected, root canals prepared, and assigned to 3 groups (n=12), according to the filling technique: warm vertical compaction technique WVC, GuttaCore (Dentsply Tulsa Dental Specialties, Tulsa, OK) and Gutta Fusion (VDW, Germany). Each specimen was scanned using a micro-CT. Percentage of voids was calculated and data statistically analyzed using Kruskal Wallis test with a significance level of 5%. RESULTS All obturations showed satisfactory similar results at the apical level. Differences between the three obturation methods were not significant at 1 mm (-p-value >0.05), 3 mm (-p-value >0.05) and 5 mm (-p-value >0.05). No root fillings were void-free. No significant difference was found between the WVC technique, the GuttaCore technique and the Gutta Fusion technique concerning percentage of apical voids regardless of canal level. CONCLUSION This study shows the efficiency of cross-linked obturators in filling root canals hermetically by comparing them to the warm vertical compaction technique. Results show that these obturation techniques were equally sufficient concerning apical adaptation making them appropriate to use in endodontic obturations.
Collapse
Affiliation(s)
- Carla Zogheib
- Ass Pr, Department of Endodontics, St Joseph University, Beirut, Lebanon
| | - Monique Hanna
- Department of Endodontics, St Joseph University, Beirut, Lebanon
| | | | - Alfred Naaman
- Pr, Department of Endodontics, St Joseph University, Beirut, Lebanon
| |
Collapse
|
19
|
Bhagavaldas MC, Diwan A, Kusumvalli S, Pasha S, Devale M, Chava DC. Efficacy of two rotary retreatment systems in removing Gutta-percha and sealer during endodontic retreatment with or without solvent: A comparative in vitro study. J Conserv Dent 2017; 20:12-16. [PMID: 28761246 PMCID: PMC5514802 DOI: 10.4103/0972-0707.209075] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Objectives: The aim of this in vitro study was to compare the efficacy of two retreatment rotary systems in the removal of Gutta-percha (GP) and sealer from the root canal walls with or without solvent. Materials and Methods: Forty-eight extracted human mandibular first premolars were prepared and obturated with GP and AH Plus sealer. Samples were then randomly divided into four groups. Group I was retreated with MtwoR rotary system without solvent, Group II was retreated with MtwoR rotary system with Endosolv R as the solvent, Group III with D-RaCe rotary system without solvent, and Group IV with D-RaCe rotary system and Endosolv R solvent. The cleanliness of canal walls was determined by stereomicroscope (×20) and AutoCAD software. Kruskal–Wallis test and Mann–Whitney U-test were used to compare the data. Results: Results showed that none of the retreatment systems used in this study was able to completely remove the root canal filling material. D-RaCe with or without solvent showed significantly (P > 0.05) less filling material at all levels compared to MtwoR with/without solvent. Conclusion: Within the limitation of the current study, D-RaCe rotary retreatment system is more effective in removing filling material from root canal walls when compared to MtwoR rotary retreatment system.
Collapse
Affiliation(s)
- Moushmi Chalakkarayil Bhagavaldas
- Department of Conservative Dentistry and Endodontics, Sri Rajiv Gandhi College of Dental Sciences and Hospital, Bengaluru, Karnataka, India
| | - Abhinav Diwan
- Department of Conservative Dentistry and Endodontics, Sri Rajiv Gandhi College of Dental Sciences and Hospital, Bengaluru, Karnataka, India
| | - S Kusumvalli
- Department of Conservative Dentistry and Endodontics, Sri Rajiv Gandhi College of Dental Sciences and Hospital, Bengaluru, Karnataka, India
| | - Shiraz Pasha
- Department of Conservative Dentistry and Endodontics, Sri Rajiv Gandhi College of Dental Sciences and Hospital, Bengaluru, Karnataka, India
| | - Madhuri Devale
- Department of Conservative Dentistry and Endodontics, Sri Rajiv Gandhi College of Dental Sciences and Hospital, Bengaluru, Karnataka, India
| | - Deepak Chowdary Chava
- Department of Conservative Dentistry and Endodontics, Sri Rajiv Gandhi College of Dental Sciences and Hospital, Bengaluru, Karnataka, India
| |
Collapse
|
20
|
Venkateshbabu N, Anand S, Abarajithan M, Sheriff SO, Jacob PS, Sonia N. Natural Therapeutic Options in Endodontics - A Review. Open Dent J 2016; 10:214-26. [PMID: 27386007 PMCID: PMC4911752 DOI: 10.2174/1874210601610010214] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 01/10/2016] [Accepted: 01/28/2016] [Indexed: 11/22/2022] Open
Abstract
Complete eradication of microbial biofilms and elimination of the smear layer are the key factors during endodontic treatment. Various chemical irrigants have been proposed in the literature for the same. The major setback with these chemical irrigants is that they are not bio-friendly to the dental and peri-radicular tissues. In the recent years, research to use natural products for root canal disinfection has gained importance. The aim of this article is to compile various herbal products that have been used as an irrigants and intracanal medicaments in the field of Endodontics to eradicate the biofilm and remove smear layer.
Collapse
Affiliation(s)
| | - Suresh Anand
- Department of Conservative Dentistry and Endodontics, Penang International Dental College, Penang, Malaysia
| | | | - Sultan O Sheriff
- Department of Restorative Dentistry, International Medical University, Kuala lumpur, Malaysia
| | - Pulikkotil S Jacob
- Department of Restorative Dentistry, International Medical University, Kuala lumpur, Malaysia
| | - Nath Sonia
- Department of Periodontology, Vananchal Dental College, Garhwa, India
| |
Collapse
|
21
|
Forghani M, Gharechahi M, Karimpour S. In vitroevaluation of tooth discolouration induced by mineral trioxide aggregate Fillapex and iRoot SP endodontic sealers. AUST ENDOD J 2016; 42:99-103. [DOI: 10.1111/aej.12144] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Maryam Forghani
- Dental Research Center and Department of Endodontics; Faculty of Dentistry; Mashhad University of Medical Sciences; Mashhad Iran
| | - Maryam Gharechahi
- Dental Materials Research Center and Department of Endodontics; Faculty of dentistry; Mashhad University of Medical Sciences; Mashhad Iran
| | - Sahar Karimpour
- Faculty of Dentistry; Mashhad University of Medical Sciences; Mashhad Iran
| |
Collapse
|
22
|
Cytotoxicity and genotoxicity of natural resin-based experimental endodontic sealers. Clin Oral Investig 2015; 20:815-9. [DOI: 10.1007/s00784-015-1567-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Accepted: 08/13/2015] [Indexed: 01/21/2023]
|
23
|
Amezcua O, Gonzalez ÁC, Borges ÁH, Bandeca MC, Estrela CRDA, Estrela C. Sealing ability of root-end filling materials. J Contemp Dent Pract 2015; 16:210-4. [PMID: 26057920 DOI: 10.5005/jp-journals-10024-1663] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND The aim of this research was to compare the apical sealing ability of different root-end filling materials (SuperEBA(®), ProRoot MTA(®), thermoplasticized gutta-percha + AH-Plus(®), thermoplasticized RealSeal(®)), by means of microbial indicators. MATERIALS AND METHODS Thus, 50 human single-rooted teeth were employed, which were shaped until size 5 0, retro - prepared with ultrasonic tips and assigned to 4 groups, retro-filled with each material or controls. A platform was employed, which was split in two halves: upper chamber-where the microbial suspension containing the biological indicators was introduced (E. faecalis + S. aureus + P. aeruginosa + B. subtilis + C. albicans); and a lower chamber containing the culture medium brain, heart influsion, where 3 mm of the apical region of teeth were kept immersed. Lectures were made daily for 60 days, using the turbidity of the culture medium as indicative of microbial contamination. Statistical analyses were carried out at 5% level of significance. RESULTS The results showed microbial leakage at least in some specimens in all of the groups. RealSeal(®) has more microbial leakage, statistically significant, compared to ProRoot(®) MTA and SuperEBA(®). No significant differences were observed when compared ProRoot(®) MTA and SuperEBA(®). The gutta-percha + AH Plus results showed no statistically significant differences when compared with the other groups. CONCLUSIONS All the tested materials showed microbial leakage. Root-end fillings with Super-EBA or MTA had the lowest bacterial filtration and RealSeal shows highest bacterial filtration.
Collapse
Affiliation(s)
- Octávio Amezcua
- Department of Endodontics, University of Guadalajara, Jalisco, México
| | | | | | | | | | - Carlos Estrela
- Professor, Department of Stomatologic Sciences, Federal University of Goiás, Praça Universitária s/n, Setor Universitário CEP: 74605-220, Gaiânia, GO, Brazil, e-mail:
| |
Collapse
|
24
|
Malka VB, Hochscheidt GL, Larentis NL, Grecca FS, Fontanella VRC, Kopper PMP. A new in vitro method to evaluate radio-opacity of endodontic sealers. Dentomaxillofac Radiol 2015; 44:20140422. [PMID: 25651275 DOI: 10.1259/dmfr.20140422] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES To evaluate a new method for assessing the radio-opacity of endodontic sealers and to compare radio-opacity values with a well-established standard method. METHODS The sealers evaluated in this study were AH Plus(®) (Dentsply DeTrey GmbH, Konstanz, Germany), Endo CPM Sealer (EGEO SRL, Buenos Aires, Argentina) and MTA Fillapex(®) (Angelus Dental Products Industry S/A, Londrina, Parana, Brazil). Two methods were used to evaluate radio-opacity: (D) standard discs and (S) a tissue simulator. For (D), ten standard discs were prepared for each sealer and were radiographed using Digora(®) phosphor storage plates (Soredex; Orion Corporation, Helsinki, Finland), alongside an aluminium stepwedge. For (S), polyethylene tubes filled with sealer (n = 10 for each) were radiographed inside the simulator as described. The digital images were analysed using Adobe Photoshop(®) software v. 10.0 (Adobe Systems, San Jose, CA). To compare the radio-opacity among the sealers, the data were analysed by ANOVA and Tukey's test, and to compare methods, they were analysed by the Mann-Whitney U test. To compare the data obtained from dentin and sealers in method (S), Student's paired t-test was used (=0.05). RESULTS In both methods, the sealers showed significant differences, according to the following decreasing order: AH Plus, MTA Fillapex and Endo CPM. In (D), MTA Fillapex and Endo CPM showed less radio-opacity than aluminium. For all of the materials, the radio-opacity was higher in (S) than in (D). Compared with dentin, all of the materials were more radio-opaque. CONCLUSIONS The comparison of the two assessment methods for sealer radio-opacity testing validated the use of a tissue simulator block.
Collapse
Affiliation(s)
- V B Malka
- 1 Department of Conservative Dentistry, Dental School, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | | | | | | | | | | |
Collapse
|
25
|
Physicochemical properties and surfaces morphologies evaluation of MTA FillApex and AH plus. ScientificWorldJournal 2014; 2014:589732. [PMID: 24883413 PMCID: PMC4032737 DOI: 10.1155/2014/589732] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 04/07/2014] [Indexed: 11/17/2022] Open
Abstract
The solubility, pH, electrical conductivity, and radiopacity of AH Plus and MTA FillApex were evaluated. In addition, the surfaces morphologies of the sealers were analyzed by using scanning electron microscopy. For pH test, the samples were immersed in distilled water at different periods of time. The same solution was used for electrical conductivity measurement. The solubility and radiopacity were evaluated according to ANSI/ADA. Statistical analyses were carried out at 5% level of significance. MTA FillApex presented higher mean value for solubility and electrical conductivity. No significant difference was observed in the mean values for pH reading. AH Plus presented higher radiopacity mean values. MTA FillApex presented an external surface with porosities and a wide range of sizes. In conclusion, the materials fulfill the ANSI/ADA requirements when considering the radiopacity and solubility. AH Plus revealed a compact and homogeneous surface with more regular aspects and equal particle sizes.
Collapse
|
26
|
Viapiana R, Baluci CA, Tanomaru-Filho M, Camilleri J. Investigation of chemical changes in sealers during application of the warm vertical compaction technique. Int Endod J 2014; 48:16-27. [DOI: 10.1111/iej.12271] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Accepted: 02/17/2014] [Indexed: 11/26/2022]
Affiliation(s)
- R. Viapiana
- Department of Restorative Dentistry; Araraquara Dental School; São Paulo State University (UNESP); Araraquara SP Brazil
| | - C. A. Baluci
- Diagnostic Science Laboratories; Heritage Malta Kalkara Malta
| | - M. Tanomaru-Filho
- Department of Restorative Dentistry; Araraquara Dental School; São Paulo State University (UNESP); Araraquara SP Brazil
| | - J. Camilleri
- Department of Restorative Dentistry; Faculty of Dental Surgery; University of Malta; Msida Malta
| |
Collapse
|
27
|
Rippe MP, Santini MF, Bier CAS, Borges ALS, Valandro LF. Root Canal Filling: Fracture Strength of Fiber-Reinforced Composite-Restored Roots and Finite Element Analysis. Braz Dent J 2013; 24:619-25. [DOI: 10.1590/0103-6440201301996] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2012] [Accepted: 10/10/2013] [Indexed: 11/22/2022] Open
Abstract
The aims of this study were to evaluate the effect of root canal filling techniques on root fracture resistance and to analyze, by finite element analysis (FEA), the expansion of the endodontic sealer in two different root canal techniques. Thirty single-rooted human teeth were instrumented with rotary files to a standardized working length of 14 mm. The specimens were embedded in acrylic resin using plastic cylinders as molds, and allocated into 3 groups (n=10): G(lateral) - lateral condensation; G(single-cone) - single cone; G(tagger) - Tagger's hybrid technique. The root canals were prepared to a length of 11 mm with the #3 preparation bur of a tapered glass fiber-reinforced composite post system. All roots received glass fiber posts, which were adhesively cemented and a composite resin core was built. All groups were subjected to a fracture strength test (1 mm/min, 45°). Data were analyzed statistically by one-way ANOVA with a significance level of 5%. FEA was performed using two models: one simulated lateral condensation and Tagger's hybrid technique, and the other one simulated the single-cone technique. The second model was designed with an amount of gutta-percha two times smaller and a sealer layer two times thicker than the first model. The results were analyzed using von Mises stress criteria. One-way ANOVA indicated that the root canal filling technique affected the fracture strength (p=0.004). The G(lateral) and G(tagger) produced similar fracture strength values, while G(single-cone) showed the lowest values. The FEA showed that the single-cone model generated higher stress in the root canal walls. Sealer thickness seems to influence the fracture strength of restored endodontically treated teeth.
Collapse
|
28
|
Dias-da-Silva MA, Pereira AC, Marin MC, Salgado MA. The influence of topic and systemic administration of copaiba oil on the alveolar wound healing after tooth extraction in rats. J Clin Exp Dent 2013; 5:e169-73. [PMID: 24455075 PMCID: PMC3892244 DOI: 10.4317/jced.51104] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Accepted: 06/22/2013] [Indexed: 11/17/2022] Open
Abstract
The Copaiba oil has been used as an auxiliary treatment of inflammations, skin disorders and stomach ulcers, however, in dentistry, this “alternative” medicine has not been investigated yet. The purpose of this study was to evaluate the influence of topic and systemic administration of copaiba oil on the alveolar wound healing after tooth extraction. Twenty-eight wistar male rats had their lower first molar teeth extracted. Subsequently, they were divided in four groups, according to the treatment performed: (a) alveolar socket irrigation with copaiba oil; (b) alveolar socket irrigation with physiological serum; (c) daily gavage with copaiba oil or (d) daily gavage with physiological serum. After the sacrifice, the mandibles were removed and processed in order to obtain decalcified histological sections. The results demonstrated high level of epithelial migration, small number of inflammatory cells and vascular enhancement in the animals which received systemic administration of copaiba oil. The rats treated with topic administration of copaiba oil presented ulcerations and large number of inflammatory cells. An increased bone neoformation was observed in both groups treated with copaiba oil when compared with placebo group. It could be concluded that topic or systemic administration of copaiba oil leads to a better alveolar bone healing, however the topic application on connective tissue should be carefully considered, regarding the whole socket wound healing.
Key words:Alveolar wound healing, oil-resin, copaiba.
Collapse
Affiliation(s)
- Marco A Dias-da-Silva
- Academic Unit of Biological Sciences, School of Dentistry, Federal University of Campina Grande (UFCG), Patos-PB, Brazil
| | - Andresa C Pereira
- Academic Unit of Biological Sciences, School of Dentistry, Federal University of Campina Grande (UFCG), Patos-PB, Brazil
| | - Miguel Cc Marin
- University of Vale do Paraiba (UNIVAP), São José dos Campos-SP, Brazil
| | - Miguel Ac Salgado
- Department of Biosciences and Oral Diagnosis, São José dos Campos Dental School, São Paulo State University (UNESP), São José dos Campos-SP, Brazil
| |
Collapse
|
29
|
Viapiana R, Flumignan DL, Guerreiro-Tanomaru JM, Camilleri J, Tanomaru-Filho M. Physicochemical and mechanical properties of zirconium oxide and niobium oxide modified Portland cement-based experimental endodontic sealers. Int Endod J 2013; 47:437-48. [DOI: 10.1111/iej.12167] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 07/09/2013] [Indexed: 11/30/2022]
Affiliation(s)
- R. Viapiana
- Department of Restorative Dentistry; Araraquara Dental School; São Paulo State University (UNESP); Araraquara SP Brazil
| | - D. L. Flumignan
- São Paulo Federal Institute of Education; Science and Technology - IFSP; Matão SP Brazil
| | - J. M. Guerreiro-Tanomaru
- Department of Restorative Dentistry; Araraquara Dental School; São Paulo State University (UNESP); Araraquara SP Brazil
| | - J. Camilleri
- Department of Restorative Dentistry; Faculty of Dental Surgery; University of Malta; Msida Malta
| | - M. Tanomaru-Filho
- Department of Restorative Dentistry; Araraquara Dental School; São Paulo State University (UNESP); Araraquara SP Brazil
| |
Collapse
|
30
|
Baldi JV, Bernardes RA, Duarte MAH, Ordinola-Zapata R, Cavenago BC, Moraes JCS, de Moraes IG. Variability of physicochemical properties of an epoxy resin sealer taken from different parts of the same tube. Int Endod J 2012; 45:915-20. [DOI: 10.1111/j.1365-2591.2012.02049.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
31
|
Pieri FA, Mussi MCM, Fiorini JE, Moreira MAS, Schneedorf JM. Bacteriostatic effect of copaiba oil (Copaifera officinalis) against Streptococcus mutans. Braz Dent J 2012; 23:36-8. [DOI: 10.1590/s0103-64402012000100006] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Accepted: 11/17/2011] [Indexed: 11/22/2022] Open
Abstract
This study evaluated the inhibitory activity of copaiba oil (Copaifera officinalis against the cariogenic microorganism, Streptococcus mutans. For such purpose, a minimum inhibition concentration test of copaiba oil against S. mutans was performed, using the serial dilution in broth technique, with a negative control, a positive control (0.12% chlorhexidine) and a 10% copaíba oil solution as a test. A minimum bactericidal concentration test with tubes presenting microbial inhibition was also conduced. In the minimum inhibitory concentration test, copaiba oil showed inhibition of bacterial growth at all concentrations tested up to 0.78 µL/mL of the 10% copaiba oil solution in the broth. In addition, the negative control had no inhibition, and the 0.12% chlorhexidine solution was effective up to 6.25 µL/mL in the broth. Copaiba oil showed a bacteriostatic activity against S. mutans at low concentrations, and could be a an option of phytotherapic agent to be used against cariogenic bacteria in the prevention of caries disease.
Collapse
|
32
|
Borges RP, Sousa-Neto MD, Versiani MA, Rached-Júnior FA, De-Deus G, Miranda CES, Pécora JD. Changes in the surface of four calcium silicate-containing endodontic materials and an epoxy resin-based sealer after a solubility test. Int Endod J 2011; 45:419-28. [PMID: 22150403 DOI: 10.1111/j.1365-2591.2011.01992.x] [Citation(s) in RCA: 121] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM To compare the changes in the surface structure and elemental distribution, as well as the percentage of ion release, of four calcium silicate-containing endodontic materials with a well-established epoxy resin-based sealer, submitted to a solubility test. METHODOLOGY Solubility of AH Plus, iRoot SP, MTA Fillapex, Sealapex and MTA-Angelus (MTA-A) was tested according to ANSI/ADA Specification 57. The deionized water used in the solubility test was submitted to atomic absorption spectrophotometry to determine and quantify Ca(2+), Na(+), K(+), Zn(2+), Ni(2+) and Pb(2+) ions release. In addition, the outer and inner surfaces of nonsubmitted and submitted samples of each material to the solubility test were analysed by means of scanning electron microscopy and energy-dispersive spectroscopy (SEM/EDX). Statistical analysis was performed by using one-way anova and Tukey's post hoc tests (α = 0.05). RESULTS Solubility results, in percentage, sorted in an increasing order were -1.24 ± 0.19 (MTA-A), 0.28 ± 0.08 (AH Plus), 5.65 ± 0.80 (Sealapex), 14.89 ± 0.73 (MTA Fillapex) and 20.64 ± 1.42 (iRoot SP). AH Plus and MTA-A were statistically similar (P > 0.05), but different from the other materials (P < 0.05). High levels of Ca(2+) ion release were observed in all groups except AH Plus sealer. MTA-A also had the highest release of Na(2+) and K(+) ions. Zn(+2) ion release was observed only with AH Plus and Sealapex sealers. After the solubility test, all surfaces had morphological changes. The loss of matrix was evident and the filler particles were more distinguishable. EDX analysis displayed high levels of calcium and carbon at the surface of Sealapex, MTA Fillapex and iRoot SP. CONCLUSIONS AH Plus and MTA-A were in accordance with ANSI/ADA's requirements regarding solubility whilst iRoot SP, MTA Fillapex and Sealapex did not fulfil ANSI/ADA's protocols. High levels of Ca(2+) ion release were observed in all materials except AH Plus. SEM/EDX analysis revealed that all samples had morphological changes in both outer and inner surfaces after the solubility test. High levels of calcium and carbon were also observed at the surface of all materials except AH Plus and MTA-A.
Collapse
Affiliation(s)
- R P Borges
- Department of Endodontics, University of Ribeirão Preto, Ribeirão Preto, São Paulo, Brazil
| | | | | | | | | | | | | |
Collapse
|
33
|
Marques AA, Sponchiado EC, Garcia LF, Garrido AD, França SC, Lia RC. Morphological analysis of tissue reaction caused by a new endodontic paste in subcutaneous tissue of rats. J Conserv Dent 2011; 14:309-13. [PMID: 22025840 PMCID: PMC3198566 DOI: 10.4103/0972-0707.85823] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Revised: 01/28/2011] [Accepted: 02/11/2011] [Indexed: 11/25/2022] Open
Abstract
Aim: To assess the biocompatibility of an experimental endodontic paste based on the ethyl acetate fraction of Pothomorphe umbellata + calcium hydroxide, using propylene glycol as vehicle, in connective tissue of rats. Materials and Methods: Fifteen rats had four polyethylene tubes implanted in their backs, with each one containing the experimental paste. The tube side was considered the control group. After 7, 21, and 42 days, animals were euthanized. Results: Intense inflammatory reaction was noticed after 7 days for experimental paste and it was moderate for control group. At 21 days, the inflammatory reaction was moderate for experimental paste and discrete for control group; and at 42 days, it was discrete for experimental paste and control group. Statistical analysis (Dunn's test, P < 0.01) demonstrated significant difference between the fibrous capsule area at 7 and 42 days (P > 0.01) for experimental paste. Conclusions: Experimental endodontic paste presented satisfactory tissue reaction in the connective tissue of rats.
Collapse
Affiliation(s)
- André Af Marques
- Department of Endodontics, School of Dentistry, Federal University of Amazonas, Manaus, AM, Brazil
| | | | | | | | | | | |
Collapse
|
34
|
Somma F, Cretella G, Carotenuto M, Pecci R, Bedini R, De Biasi M, Angerame D. Quality of thermoplasticized and single point root fillings assessed by micro-computed tomography. Int Endod J 2011; 44:362-9. [DOI: 10.1111/j.1365-2591.2010.01840.x] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
35
|
Flores DSH, Rached-Júnior FJA, Versiani MA, Guedes DFC, Sousa-Neto MD, Pécora JD. Evaluation of physicochemical properties of four root canal sealers. Int Endod J 2010; 44:126-35. [DOI: 10.1111/j.1365-2591.2010.01815.x] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
36
|
Rosa PCFD, Mancini MNG, Camargo SEA, Garrido ADB, Camargo CHR, Rode SDM. Dimensional alterations and solubility of new endodontic sealers. Braz Dent J 2010; 21:301-4. [PMID: 20976378 DOI: 10.1590/s0103-64402010000400002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This study evaluated the dimensional alterations and the solubility of two experimental endodontic sealers based on Copaifera multijuga oil-resin (Biosealer) and castor oil bean cement (Poliquil), maintained in different storage solutions. Twenty specimens (3 mm diameter and 2 mm height) of each sealer were assigned to 2 groups (n=10) according to the storage solution: simulated tissue fluid (STF) or distilled water (DW). The specimens were stored in these solutions during 90 days, being removed every 30 days for weighting. The solutions were renewed every 15 days. The results were subjected to statistical analysis by Dunn's and Mann-Whitney tests (a=0.05). The solubility of Poliquil was higher in STF (38.4 ± 36.0) than in DW (28.4 ± 15.0), while Biosealer showed higher solubility in DW (34.61 ± 6.0) than in STF (18.59 ± 8.0). The storage solution influenced the behavior of sealers in relation to the weight variation (p=0.0001). Poliquil presented higher variation of weight independent of the solution (p=0.239). Biosealer also presented higher variation of weight regardless of the solution (p=0.0001). The solubility of Biosealer was different from that of Poliquil, but both sealers showed low solubility in STF. Under the tested conditions, neither of the materials were according to the ADA'S specification.
Collapse
|