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Rosa SJ, Duarte MAH, Silva EJNL, Oliveira MCGD, Titato PCG, Vasconcelos BCD, Vivan RR, Alcalde MP. Does the Mixing Method of AH Plus Jet Affect its Physicochemical and Mechanical Properties? J Endod 2024:S0099-2399(24)00358-3. [PMID: 38901643 DOI: 10.1016/j.joen.2024.06.006] [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: 02/13/2024] [Revised: 05/22/2024] [Accepted: 06/10/2024] [Indexed: 06/22/2024]
Abstract
INTRODUCTION The purpose of this study was to evaluate whether the mixing method of AH Plus Jet sealer affects its physicochemical and mechanical properties. METHODS The properties of AH Plus Jet sealer were analyzed when mixed using either the Auto Mix Tip or manual mixing. The evaluated properties included radiopacity (n = 5), initial and final setting times (n = 5), flow (n = 5), and solubility (n = 3), following specifications outlined in ISO 6876/2012 and ADA Nº 57/2000. pH levels were measured at intervals of 3, 24, 72, and 168 hours (n = 10). The push-out bond strength test was conducted using a universal testing machine and using bovine teeth (n = 30). Failure modes were analyzed with stereomicroscopy. Porosity was evaluated under micro-CT (n = 5), and scanning electron microscopy was also performed (n = 5). One-way analysis of variance and Tukey, unpaired t-tests, or Mann-Whitney tests were used with a significance level of 5%. RESULTS The Auto Mix exhibited a radiopacity value of 12.11 mmAl, whereas manual mixing resulted in 12.55 mmAl (P > .05). For initial and final setting times, Auto Mix showed 901 minutes and 1779 minutes, respectively, while manual mixing recorded values of 631 minutes and 1504 minutes (P < .05). In terms of flow, Auto Mix demonstrated higher values (25.26 mm) than manual mixing (21.71 mm) (P < .05). No statistical differences were observed between the two methods for solubility and pH (P > .05). Manual mixing presented a higher bond strength value (14.52 MPa) than Auto Mix (9.81 MPa) (P < .05). The mixed failure mode was the most frequent outcome for both methods. The highest porosity was observed for Auto Mix (P < .05). Scanning electron microscopy analysis revealed that manual mixing resulted in a smoother surface with fewer pores and smaller, more evenly distributed agglomerates compared to automatic mixing. CONCLUSION The mixing method employed for AH Plus Jet sealer influences some physicochemical and mechanical properties of the material.
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Affiliation(s)
- Stefani Jovedi Rosa
- Department of Operative Dentistry, Endodontics, and Dental Materials, Bauru School of Dentistry, University of São Paulo - USP, Bauru, Brazil
| | - Marco Antonio Hungaro Duarte
- Department of Operative Dentistry, Endodontics, and Dental Materials, Bauru School of Dentistry, University of São Paulo - USP, Bauru, Brazil
| | | | - Maria Carolina Guiotti de Oliveira
- Department of Operative Dentistry, Endodontics, and Dental Materials, Bauru School of Dentistry, University of São Paulo - USP, Bauru, Brazil
| | - Pedro Cesar Gomes Titato
- Department of Operative Dentistry, Endodontics, and Dental Materials, Bauru School of Dentistry, University of São Paulo - USP, Bauru, Brazil
| | | | - Rodrigo Ricci Vivan
- Department of Operative Dentistry, Endodontics, and Dental Materials, Bauru School of Dentistry, University of São Paulo - USP, Bauru, Brazil
| | - Murilo Priori Alcalde
- Department of Operative Dentistry, Endodontics, and Dental Materials, Bauru School of Dentistry, University of São Paulo - USP, Bauru, Brazil.
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Seron MA, Nunes GP, Ferrisse TM, Strazzi-Sahyon HB, Dos Santos PH, Gomes-Filho JE, Cintra LTA, Sivieri-Araujo G. Influence of bioceramic sealers on dentinal tubule penetration and antimicrobial effectiveness: a systematic review and meta-analysis of in vitro studies. Odontology 2024:10.1007/s10266-024-00904-6. [PMID: 38374511 DOI: 10.1007/s10266-024-00904-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 01/08/2024] [Indexed: 02/21/2024]
Abstract
The aim of this systematic review and meta-analysis (SRM) was to evaluate whether bioceramic sealers have better penetration capacity in dentinal tubules and antimicrobial activity when compared to AH Plus® sealer. This SRM was recorded in the Open Science Framework database and followed the guidelines of the PRISMA 2020. Five databases were searched by two independent reviewers. Only in vitro studies that evaluated the effects of bioceramic sealers on dentinal tubule penetration and antimicrobial activity outcomes compared to AH Plus® sealer were included. Meta-analysis was conducted using R software, using the effect measure of the standardized mean difference (SMD) and inverse variance method. A modified Joanna Briggs Institute's Checklist was used for the risk of bias assessment. A total of 1486 studies were identified, and only 54 studies that fulfilled our eligibility criteria were included in this review. There was no statistical difference between the sealers evaluated for dentinal tubule penetration, in the thirds evaluated: coronal SMD 0.58 [0.14; 1.31], p = 0.12; middle SMD 0.07 [0.54; 0.39], p = 0.75; and apical SMD 0.08 [0.73; 0.56], p = 0.80. Both sealers demonstrated similar antimicrobial action (SMD [3.42; 5.32], p = 0.67 and SMD 0.67 [1.89; 0.55], p = 0.28). The studies presented a low risk of bias. Based on the in vitro studies included and according to the limitations of the present review, the data suggest that bioceramic and AH Plus® sealers present similar penetration capacity in dentinal tubules and antimicrobial effect, making them suitable materials to be considered in clinical practice.
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Affiliation(s)
- Marcelo Augusto Seron
- Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, São Paulo State University - UNESP, Rua José Bonifácio 1193, Araçatuba, SP, 16015-050, Brazil
| | - Gabriel Pereira Nunes
- Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, São Paulo State University - UNESP, Rua José Bonifácio 1193, Araçatuba, SP, 16015-050, Brazil.
| | - Tulio Morandin Ferrisse
- Oral Medicine, Department of Diagnosis and Surgery, Araraquara School of Dentistry, São Paulo State University - UNESP, Araraquara, SP, Brazil
| | - Henrico Badaoui Strazzi-Sahyon
- Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University - UNESP, Araçatuba, SP, Brazil
| | - Paulo Henrique Dos Santos
- Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University - UNESP, Araçatuba, SP, Brazil
| | - João Eduardo Gomes-Filho
- Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, São Paulo State University - UNESP, Rua José Bonifácio 1193, Araçatuba, SP, 16015-050, Brazil
| | - Luciano Tavares Angelo Cintra
- Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, São Paulo State University - UNESP, Rua José Bonifácio 1193, Araçatuba, SP, 16015-050, Brazil
| | - Gustavo Sivieri-Araujo
- Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, São Paulo State University - UNESP, Rua José Bonifácio 1193, Araçatuba, SP, 16015-050, Brazil
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Karobari MI, Batul R, Snigdha NTS, AL-Rawas M, Noorani TY. Evaluation of push-out bond strength, dentinal tubule penetration and adhesive pattern of bio-ceramic and epoxy resin-based root canal sealers. PLoS One 2023; 18:e0294076. [PMID: 37956149 PMCID: PMC10642786 DOI: 10.1371/journal.pone.0294076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open
Abstract
INTRODUCTION Root canal sealing materials play a crucial role in an endodontic procedure by forming a bond between the dentinal walls and the gutta-percha. The current study aims to analyse the dentinal tubule penetration and adhesive pattern, including the push-out bond strength of six commercially available root canal sealers. METHODOLOGY Eighty-four mandibular first premolars were split into seven groups (and n = 12), Group 1: Dia-Root, Group 2: One-Fil, Group 3: BioRoot RCS, Group 4: AH Plus, Group 5: CeraSeal, Group 6: iRoot SP, Group 7: GP without sealer (control). Two groups were made, one for dentinal tubule penetration and the other for push-out bond strength; the total sample size was one hundred sixty-eight. Root canal treatment was performed using a method called the crown down technique, and for obturation, the single cone technique was used. A confocal laser scanning microscope (Leica, Microsystem Heidel GmbH, Version 2.00 build 0585, Germany) was used to evaluate dentinal tubule penetration, and Universal Testing Machine was utilised to measure the push-out bond strength (Shimadzu, Japan) using a plunger size of 0.4 mm and speed of 1mm/min. Finally, the adhesive pattern of the sealers was analysed by HIROX digital microscope (KH-7700). Statistical analysis was carried out by a one-way Anova test, Dunnet's T3 test, and Chi-square test. RESULTS Highest dentinal tubule penetration was noticed with One-Fil (p<0.05), followed by iRoot SP, CeraSeal, AH Plus, Dia-Root also, the most negligible value was recorded for BioRoot RCS. Meanwhile, BioRoot RCS (p<0.05) demonstrated the greater value of mean push-out bond strength, followed by One-fil, iRoot SP, CeraSeal, AH Plus and Dia-Root. Regarding adhesive pattern, most of the samples were classified as type 3 and type 4 which implies greater sealing ability and better adherence to the dentinal wall. However, BioRoot RCS revealed the most type 4 (p<0.05), followed by AH Plus, One-Fil, CeraSeal and Dia-Root. CONCLUSION The highest dentinal tubule penetration was shown by One-Fil compared to other groups. Meanwhile, BioRoot RCS had greater push-out bond strength and more adhesive pattern than other tested materials.
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Affiliation(s)
- Mohmed Isaqali Karobari
- Department of Restorative Dentistry & Endodontics, Faculty of Dentistry, University of Puthisastra, Phnom Penh, Cambodia
- Dental Research Unit, Center for Global health Research, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| | - Rumesa Batul
- Conservative Dentistry Unit, School of Dental Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian, Kota Bharu, Kelantan, Malaysia
| | - Niher Tabassum Siddiqua Snigdha
- Department of Paediatric Dentistry, School of Dental Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian, Kota Bharu, Kelantan, Malaysia
| | - Matheel AL-Rawas
- Prosthodontics Unit, School of Dental Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Kelantan, Malaysia
| | - Tahir Yusuf Noorani
- Dental Research Unit, Center for Global health Research, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
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Nomura LH, Bortoluzzi EA, Tay FR, Garcia LDFR, Teixeira CDS. The effects of heating on the physicochemical properties of tricalcium silicate root canal sealers. Braz Dent J 2023; 34:34-43. [PMID: 37909640 PMCID: PMC10642270 DOI: 10.1590/0103-6440202305237] [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: 10/03/2022] [Accepted: 07/16/2023] [Indexed: 11/03/2023] Open
Abstract
This study evaluated the effect of heating on the physicochemical properties and surface changes of tricalcium silicate sealers. Three tricalcium silicate root canal sealers (Bio-C Sealer, BioRoot-RCS, EndoSequence BC Sealer), and one epoxy resin-based sealer (AH Plus; control) were tested. The effect of heating on setting time (ST) and flowability were assessed according to ANSI/ADA 57 and ISO 6876 standards. Solubility and dimensional change (DC) of the set sealers were evaluated at 24 hours and after 30 days; the pH of the water used in the DC testing was also measured. Tests were repeated with heated sealers in an oven at 100 °C for 1 min. SEM and EDS analysis were performed. Data were analyzed using One-Way ANOVA and Tukey post-hoc tests (α=5%). Heating decreased the ST for AH Plus and EndoSequence (p<0.05). Heating reduced flowability (p<0.05) and increased pH for AH Plus (p<0.05). The solubility of Bio-C (dried specimens) was not in accordance with the ANSI/ADA standard. The solubility of EndoSequence was significantly higher (p<0.05) when it was heated and dried after 30 days. DC of Bio-C (24 h and 30 days), BioRoot-RCS (30 days) and AH Plus (24 h and 30 days) were not in accordance with the standards. SEM and EDS analysis showed significant changes in sealer microstructure after heating. In conclusion, heating decreased the ST and increased the solubility of EndoSequence BC sealer. No significant changes in flowability, DC, and pH were identified for all three tricalcium silicate sealers after heat application. However, all sealers had significant surface changes.
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Affiliation(s)
- Lincon Hideo Nomura
- Department of Dentistry, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - Eduardo Antunes Bortoluzzi
- Department of Dentistry, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
- Department of Diagnosis & Oral Health, Division of Endodontics, University of Louisville, Louisville, KY, USA
| | - Franklin R. Tay
- Department of Endodontics, The Dental College of Georgia, Augusta University, GA, USA
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Koo J, Kwak SW, Kim HC. Differences in setting time of calcium silicate-based sealers under different test conditions. J Dent Sci 2022. [DOI: 10.1016/j.jds.2022.11.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Silva GFD, Coelho LAS, Costa VAS, Conti LC, Lima ACDA, Sodré GCDS, Martins MRL, Duarte MAH, Vivan RR. Laboratory study of tissue repair of resin-based endodontic sealers in critical surgical defects. J Appl Oral Sci 2022; 30:e20220108. [PMID: 35920449 PMCID: PMC9365338 DOI: 10.1590/1678-7757-2022-0108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 06/21/2022] [Indexed: 11/22/2022] Open
Abstract
Filling materials should be restricted to the root canal space. However, sometimes it is impossible to control the apical extrusion, in this case, the fate of the filling material and the result of the treatment will depend on its physicochemical properties and biocompatibility.
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Affiliation(s)
| | - Letycia Accioly Simões Coelho
- Universidade de São Paulo , Faculdade de Odontologia de Bauru , Departamento de Dentística, Endodontia e Materiais Odontológicos , Bauru , SP , Brasil
| | - Vanessa Abreu Sanches Costa
- Universidade de São Paulo , Faculdade de Odontologia de Bauru , Departamento de Dentística, Endodontia e Materiais Odontológicos , Bauru , SP , Brasil
| | - Letícia Citelli Conti
- Universidade de São Paulo , Faculdade de Odontologia de Bauru , Departamento de Dentística, Endodontia e Materiais Odontológicos , Bauru , SP , Brasil
| | - Ana Carolina de Almeida Lima
- Universidade de São Paulo , Faculdade de Odontologia de Bauru , Departamento de Dentística, Endodontia e Materiais Odontológicos , Bauru , SP , Brasil
| | - Gabriela Cristina de Santi Sodré
- Universidade de São Paulo , Faculdade de Odontologia de Bauru , Departamento de Dentística, Endodontia e Materiais Odontológicos , Bauru , SP , Brasil
| | - Mateus Rinaldi Lucio Martins
- Universidade de São Paulo , Faculdade de Odontologia de Bauru , Departamento de Dentística, Endodontia e Materiais Odontológicos , Bauru , SP , Brasil
| | - Marco Antonio Hungaro Duarte
- Universidade de São Paulo , Faculdade de Odontologia de Bauru , Departamento de Dentística, Endodontia e Materiais Odontológicos , Bauru , SP , Brasil
| | - Rodrigo Ricci Vivan
- Universidade de São Paulo , Faculdade de Odontologia de Bauru , Departamento de Dentística, Endodontia e Materiais Odontológicos , Bauru , SP , Brasil
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Padoin K, Bohrer TC, Ceolin LG, Bier CAS, Rosa RAD, Morgental RD. Does ultrasonic activation improve the bond strength and root canal filling quality of endodontic sealers? Braz Dent J 2022; 33:28-37. [PMID: 35766714 DOI: 10.1590/0103-6440202204728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 03/07/2022] [Indexed: 11/22/2022] Open
Abstract
This study aimed to investigate the effect of ultrasonic activation (UA) of three endodontic sealers on the bond strength to root dentin and root canal filling quality. Ninety six bovine incisors were instrumented and root canal filling was carried out using AH Plus (AP), Sealer Plus (SP), or Sealer Plus BC (BC), with or without UA (n=16/group). Two 1.5-mm slices were obtained from each root third. The first slice was subjected to push-out testing and failure mode analysis, while the second was observed under a stereomicroscope for filling quality assessment. Data were analyzed by Kruskal-Wallis, Mann-Whitney and Friedman tests (α=0.05). SP showed higher bond strength and fewer voids than BC in the apical third and when root thirds data were pooled. SP also had higher bond strength compared with AH Plus in the apical third. UA improved the bond strength when BC was used but did not affect the filling quality of any sealer. There were no significant differences between the ultrasonically activated sealers regarding bond strength and filling quality. When root thirds were compared, the bond strength was similar along the root, but there was a tendency to worsen filling quality, with more voids, in the apical segment. In conclusion, UA was effective in increasing the bond strength of the calcium silicate-based sealer but did not improve its filling quality. For the epoxy resin-based sealers, these properties were not affected by UA.
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Affiliation(s)
- Karine Padoin
- Graduate Program in Dental Sciences, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Thais Camponogara Bohrer
- Graduate Program in Dental Sciences, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Lucas Galle Ceolin
- School of Dentistry, Federal University of Santa Maria(UFSM), Santa Maria, RS, Brazil
| | | | - Ricardo Abreu da Rosa
- Graduate Program in Dentistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
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Zordan-Bronzel CL, Tanomaru-Filho M, Torres FFE, Chávez-Andrade GM, Rodrigues EM, Guerreiro-Tanomaru JM. Physicochemical Properties, Cytocompatibility and Antibiofilm Activity of a New Calcium Silicate Sealer. Braz Dent J 2021; 32:8-18. [PMID: 34787254 DOI: 10.1590/0103-6440202103314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 01/16/2021] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to evaluate the physicochemical properties, cytocompatibility and antibiofilm activity of a new calcium silicate-based endodontic sealer, Sealer Plus BC (MK Life, Brazil), in comparison with TotalFill BC Sealer (FKG Dentaire SA, Switzerland) and AH Plus (Dentsply, Germany). Setting time and flow were evaluated based on ISO 6876 standard. The pH was evaluated after different periods, and radiopacity by radiographic analysis (mmAl). Solubility (% mass loss) and volumetric change (by micro-CT) were assessed after 30 days of immersion in distilled water. Cytocompatibility was assessed by methyltetrazolium (MTT) and neutral red (NR) assays, after exposure of Saos-2 cells to the sealer extract for 24 h. An additional analysis was performed by using MTT assay after 1, 3 and 7 days of exposure of Saos-2 to the sealers 1:8 dilution extracts. Antibiofilm activity against Enterococcus faecalis and/or Candida albicans was evaluated by crystal violet assay and modified direct contact test. The physicochemical properties were analyzed using ANOVA/Tukey tests; MTT and NR data were analyzed by ANOVA and Bonferroni tests; the antimicrobial tests were analyzed by Kruskal-Wallis and Dunn tests (α=0.05). Sealer Plus BC had proper setting time, radiopacity, flow and alkalization capacity. Sealer Plus BC was significantly more soluble than AH Plus (p<0.05) and presented volumetric change similar to AH Plus and TotalFill BC (p>0.05). Sealer Plus BC presented antibiofilm activity and no cytotoxic effect. In conclusion, although Sealer Plus BC had higher solubility, this sealer showed proper physicochemical properties, cytocompatibility, and antibiofilm activity.
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Affiliation(s)
| | - Mario Tanomaru-Filho
- Department of Restorative Dentistry, São Paulo State University (UNESP), School of Dentistry, Araraquara, SP, Brazil
| | | | | | - Elisandra Marcia Rodrigues
- Department of Restorative Dentistry, São Paulo State University (UNESP), School of Dentistry, Araraquara, SP, Brazil
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Pedrinha VF, Alencar CDM, Jassé FFDA, Zaniboni JF, Dantas AAR, de Andrade FB, Kuga MC. Effect of the several epoxy resin-based sealer compositions on adhesion interface in radicular dentin after calcium hydroxide intracanal medication removal. J Clin Exp Dent 2021; 13:e913-e919. [PMID: 34603620 PMCID: PMC8464395 DOI: 10.4317/jced.58375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 06/28/2021] [Indexed: 01/04/2023] Open
Abstract
Background This study evaluated the effects of several epoxy resin-based sealer compositions (AHP, AH Plus; ADS, Adseal; SPL, Sealer Plus) on bond strength and intratubular dentin penetration of the endodontic obturation, in root canal previously treated with calcium hydroxide intracanal medication (CH) and removed by continuous ultrasonic irrigation (CUI). Material and Methods Forty-five maxillary canines were prepared up to F5 (ProTaper system), filled with CH, coronally sealed, and stored at 37ºC. After 1 week, CH was removed using 2.5% sodium hypochlorite energized by CUI. The specimens were randomly distributed in three groups (n=15) and root canal obturated, according to epoxy-based resin sealer composition (AHP, ADS or SPL). The roots were transversally sectioned in cervical, middle, and apical thirds. In each radicular third, push out bond strength using universal machine and intratubular dentin using confocal laser scanning microscopy (CLSM) and Image J Program were evaluated. Bond strength and intratubular dentin penetration were statistically evaluated by ANOVA one-way and Tukey tests and Kruskal Wallis test, respectively (α = 0.05). Results In middle and apical thirds, AHP showed higher bond strength values (p<0.05), and ADS and SPL were similar each other (p>0.05). All epoxy resin-based sealers presented similar intratubular dentin penetration, independently of the radicular thirds (p>0.05). Cohesive and mixed failures were predominant in the cervical thirds. In the middle and apical thirds, AHP showed more cohesive type failures, while ADS and SPL showed more adhesive-type failures. Conclusions AHP has the highest bond strength in middle and apical radicular thirds, after calcium hydroxide intracanal medication removal using continuous ultrasonic irrigation, although intratubular dentin infiltration being similar among epoxy resin-based sealer with several chemical composition. Key words:Continuous ultrasonic irrigation, endodontic sealers, epoxy resin-based sealers, root canal obturation.
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Affiliation(s)
- Victor-Feliz Pedrinha
- Department of Restorative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil
| | - Cristiane-de Melo Alencar
- Department of Restorative Dentistry, Araraquara School of Dentistry, State University of São Paulo (UNESP), Araraquara, SP, Brazil
| | | | - Joissi-Ferrari Zaniboni
- Department of Restorative Dentistry, Araraquara School of Dentistry, State University of São Paulo (UNESP), Araraquara, SP, Brazil
| | - Andréa-Abi-Rached Dantas
- Department of Restorative Dentistry, Araraquara School of Dentistry, State University of São Paulo (UNESP), Araraquara, SP, Brazil
| | - Flaviana-Bombarda de Andrade
- Department of Restorative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil
| | - Milton-Carlos Kuga
- Department of Restorative Dentistry, Araraquara School of Dentistry, State University of São Paulo (UNESP), Araraquara, SP, Brazil
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Saghiri MA, Dadvand S, Abdolmaleki A. The evaluation of physical properties of a polyurethane expandable endodontic sealer: a preliminary study. AUST ENDOD J 2021; 47:550-558. [PMID: 33988276 DOI: 10.1111/aej.12521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 02/19/2021] [Accepted: 04/11/2021] [Indexed: 11/28/2022]
Abstract
Endodontic sealers play a vital role in providing 3-dimensional (3D) filling of complex root canal system (RCS). This study intended to compare the physical properties of a Polyurethane Expandable Sealer (PES), AH Plus and EndoSequence. Three properties including setting time, radiopacity and flow (rheology) were evaluated based on ISO 6876 standard. For evaluation of each of these physical properties, five samples from experimental groups: AH Plus, EndoSequence, PES (controlled expansion) and PES (high expansion) were used (n = 5). Data were analysed by one-way ANOVA and Post Hoc Tukey tests (a = 0.05). EndoSequence showed the longest setting time (P < 0.000); AH Plus showed that highest radiopacity (P < 0.000); and PES (high expansion) showed the highest flow (diameter and surface area) (P < 0.000). EndoSequence and PES (controlled expansion) showed promising and comparable physical properties to the AH Plus sealer in terms of flow, setting time and radiopacity.
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Affiliation(s)
- Mohammad Ali Saghiri
- Director of Biomaterial and Prosthodontics Laboratory, Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, NJ, USA.,Department of Endodontics, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, CA, USA
| | - Sahar Dadvand
- Department of Preventive and Restorative Dental Sciences, San Francisco School of Dentistry, University of California, San Francisco, CA, USA
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Carvalho NK, Barbosa AFA, Coelho BDP, Gonçalves LDS, Sassone LM, Silva EJNL. Antibacterial, biological, and physicochemical properties of root canal sealers containing chlorhexidine-hexametaphosphate nanoparticles. Dent Mater 2021; 37:863-874. [PMID: 33648745 DOI: 10.1016/j.dental.2021.02.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 01/27/2021] [Accepted: 02/12/2021] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the influence of the incorporation of chlorhexidine-hexametaphosphate nanoparticles (CHX-HMP NPs) on antibacterial, cytotoxic and physicochemical properties of AH Plus (AH), MTA Fillapex (MTA) and Pulp Canal Sealer (PCS). METHODS The NPs were synthesized and characterized by Scanning Electron Microscopy (SEM), Dynamic Light Scattering (DLS), zeta potential, Atomic Force Microscopy (AFM) and Energy-Dispersive X-ray Spectroscopy (EDS). The incorporation was made by weight, 2% and 5% of NPs. The antimicrobial activity, cytotoxicity, flow, radiopacity, setting time, solubility and pH were evaluated. The statistical analysis was performed by two-way analysis of variance test and Tukey post hoc test (P < 0.05). RESULTS SEM analysis showed the tendency for CHX-HMP NPs to cluster, the effective mean diameter measured by DLS: 169.39 nm and the zeta potential: -10.18 mV. The NPs were individually measured by AFM: 22.99-52.75 nm. EDS analysis identified the presence of C, N, O, Na, P, Cl. After incorporation: The Direct Contact Test showed an increase in the antimicrobial action of AH, PCS and MTA; the sealers showed a decrease in flow and at 24 h of immersion also an increase in solubility, but did not affect the radiopacity of the samples; AH setting time increased and MTA did not reach setting under any of the conditions tested. All samples showed a decrease in pH value as the immersion time progressed. SIGNIFICANCE The incorporation of NPs can improve the antimicrobial performance of endodontic sealers without impairing other biological and physicochemical properties.
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Affiliation(s)
- Nancy Kudsy Carvalho
- Department of Endodontics, School of Dentistry, State University of Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil
| | - Ana Flávia Almeida Barbosa
- Department of Endodontics, School of Dentistry, State University of Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil
| | - Bárbara de Paula Coelho
- Department of Endodontics, School of Dentistry, State University of Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil
| | | | - Luciana Moura Sassone
- Department of Endodontics, School of Dentistry, State University of Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil
| | - Emmanuel João Nogueira Leal Silva
- Department of Endodontics, School of Dentistry, State University of Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil; Department of Endodontics, School of Dentistry, Grande Rio University (UNIGRANRIO), Rio de Janeiro, RJ, Brazil.
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Miyashita H, Asaumi R, Sakamoto A, Kawai T, Igarashi M. Root canal sealers affect artifacts on cone-beam computed tomography images. Odontology 2021; 109:679-686. [PMID: 33550479 DOI: 10.1007/s10266-021-00590-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 01/08/2021] [Indexed: 11/29/2022]
Abstract
The purpose of this study was to evaluate the appearance of artifacts by four types of root canal filling sealers on cone-beam computed tomography (CBCT) images. Thirty standardized tooth models were given the radiopacity equivalent to human teeth, and root canal preparation was performed using WaveOne Gold. Root canal filling by a single-point method was performed using WaveOne Gold gutta-percha points and four types of root canal sealers: AH Plus (AH), CANALS (CA), BioRoot RCS (BR), and MTA Fillapex (MTA). Samples were taken by periapical radiography at 60 kV and scanned by CBCT at three tube voltages (70, 85, and 100 kV). The gray-scale values (GVs) of the periapical radiographs were measured and the aluminum equivalents were calculated. On the CBCT axial images, the artifact and dentin area GVs were measured and the rate of change in the GV (RCGV) was calculated as follows: RCGV (%) = (dentin area GV - artifact GV)/dentin area GV × 100. High-density areas with artifacts on the CBCT images were also measured. On the periapical radiographs, the aluminum equivalent was largest for AH and smallest for MTA. On the CBCT images, AH showed the largest values for both RCGV and the high-density areas, while BR and MTA showed comparable values. Correlations were found between the radiopacity on the periapical radiographs and the degree of artifacts on the CBCT images. These findings suggest that the greater the contrast in the 2D image, the higher the artifacts in the 3D image.
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Affiliation(s)
- Hazuki Miyashita
- Department of Endodontics, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.
| | - Rieko Asaumi
- Department of Oral and Maxillofacial Radiology, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
| | - Ayaka Sakamoto
- Radiographic Laboratory, The Nippon Dental University Hospital, Tokyo, Japan
| | - Taisuke Kawai
- Department of Oral and Maxillofacial Radiology, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
| | - Masaru Igarashi
- Department of Endodontics, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan
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Baratto-Filho F, Vavassori de Freitas J, Fagundes Tomazinho FS, Leão Gabardo MC, Mazzi-Chaves JF, Damião Sousa-Neto M. Cone-Beam Computed Tomography Detection of Separated Endodontic Instruments. J Endod 2020; 46:1776-1781. [DOI: 10.1016/j.joen.2020.08.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/28/2020] [Accepted: 08/10/2020] [Indexed: 11/30/2022]
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Aksel H, Makowka S, Bosaid F, Guardian MG, Sarkar D, Azim AA. Effect of heat application on the physical properties and chemical structure of calcium silicate-based sealers. Clin Oral Investig 2020; 25:2717-2725. [PMID: 32975704 DOI: 10.1007/s00784-020-03586-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/14/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To determine the effect of heat application on the setting and chemical properties of HiFlow BC Sealer and compare to other calcium silicate (CSBS) and epoxy resin-based root canal sealers. MATERIALS AND METHODS AH Plus, BioRoot RCS (BioRoot), Endosequence BC (Endosequence), and HiFlow BC (HiFlow) sealers were placed at 37 °C or subjected to heat at 200 °C for 10 or 30 s, followed by incubation at 37 °C in a humidified incubator during experiments. Setting time, viscosity, and flow were assessed, and changes in chemical structure were evaluated using the Fourier-transform infrared spectroscopy (FTIR). Thermogravimetric analysis was also used to evaluate the weight change (%) of the sealers upon heating from room temperature to 37 °C or 200 °C at a rate of 20 °C/min. Data were analyzed using a two-way ANOVA with a Bonferroni post-hoc test (p = 0.05). RESULTS Application of heat extended the setting time for Endosequence and HiFlow but resulted in a faster setting of AH Plus and BioRoot. The highest flow and lower viscosity were observed in HiFlow at high temperature (p < 0.05), whereas the lowest flow with the highest viscosity and greatest weight loss were observed in BioRoot after heat application (p < 0.05). FTIR spectra demonstrated no changes to functional groups after heat application, except for the strong H-O-H absorption peak corresponding to water in BioRoot. CONCLUSIONS Endosequence and HiFlow showed similar chemical properties with a higher flow and lower viscosity in HiFlow after heat application. Heat application resulted in reduced flow, increased viscosity, and weight loss for BioRoot. The setting of AH Plus was fastened with heat, while its weight loss, viscosity, and flow characteristics were stable. CLINICAL RELEVANCE HiFlow, Endosequence, and AH Plus can be all used with WVC obturation techniques. Heat application resulted in minor changes in their physical properties including setting time, flow, weight loss, and chemical properties, while BioRoot showed a significant amount of weight loss, increase in viscosity, and reduced flowability after heat application.
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Affiliation(s)
- Hacer Aksel
- Division of Endodontics, School of Dental Medicine, University at Buffalo, Buffalo, NY, USA.
| | - Steven Makowka
- Dental Materials Research Laboratory, University at Buffalo, Buffalo, NY, USA
| | - Fatima Bosaid
- Division of Endodontics, School of Dental Medicine, University at Buffalo, Buffalo, NY, USA
| | | | - Debanjan Sarkar
- Department of Biomedical Engineering, Jacobs School of Medicine & Biomedical Sciences, Buffalo, NY, USA
| | - Adham A Azim
- Division of Endodontics, School of Dental Medicine, University at Buffalo, Buffalo, NY, USA.
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Katakidis A, Sidiropoulos K, Koulaouzidou E, Gogos C, Economides N. Flow characteristics and alkalinity of novel bioceramic root canal sealers. Restor Dent Endod 2020; 45:e42. [PMID: 33294407 PMCID: PMC7691256 DOI: 10.5395/rde.2020.45.e42] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 04/26/2020] [Accepted: 05/08/2020] [Indexed: 11/27/2022] Open
Abstract
Objective This study aimed to examine the physical properties (pH and flow) of 2 novel bioceramic sealers. Materials and Methods The tested sealers were a calcium hydroxide sealer (Sealapex) and 2 bioceramic sealers (BioRoot RCS and TotalFill BC Sealer). Flow measurements were conducted according to ISO 6876/2012, with a press method of 0.05 mL of sealer. The pH of fresh samples was tested immediately after manipulation, while set samples were stored for 3 times the recommended setting time. The predetermined time intervals ranged from 3 minutes to 24 hours for fresh samples and from 10 minutes to 7 days and 4 weeks for the set samples. Analysis of variance was performed, with p = 0.05 considered indicating significance. Results The mean flow values were 26.99 mm for BioRoot, 28.19 for Sealapex, and 30.8 mm for TotalFill BC Sealer, satisfying the ISO standard. In the set samples, BioRoot RCS had higher pH values at 24 hours to 1 week after immersion in distilled water. At 2 weeks, both bioceramic sealers had similar pH values, greater than that of Sealapex. In the fresh samples, the bioceramic sealers had significantly higher initial pH values than Sealapex (p < 0.05). At 24 hours post-immersion, all sealers showed an alkaline pH, with the highest pH observed for TotalFill. Conclusions The TotalFill BC Sealer demonstrated the highest flow. The bioceramic sealers initially presented higher alkaline activity than the polymeric calcium hydroxide sealer. However, at 3 and 4 weeks post-immersion, all sealers had similar pH values.
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Affiliation(s)
- Anastasios Katakidis
- Section of Pathology and Therapeutics of Dental Tissues, School of Health Sciences, Faculty of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Konstantinos Sidiropoulos
- Section of Pathology and Therapeutics of Dental Tissues, School of Health Sciences, Faculty of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Elisabeth Koulaouzidou
- Section of Pathology and Therapeutics of Dental Tissues, School of Health Sciences, Faculty of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Christos Gogos
- Section of Pathology and Therapeutics of Dental Tissues, School of Health Sciences, Faculty of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Nikolaos Economides
- Section of Pathology and Therapeutics of Dental Tissues, School of Health Sciences, Faculty of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
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De Bem IA, de Oliveira RA, Weissheimer T, Bier CAS, Só MVR, Rosa RAD. Effect of Ultrasonic Activation of Endodontic Sealers on Intratubular Penetration and Bond Strength to Root Dentin. J Endod 2020; 46:1302-1308. [PMID: 32615175 DOI: 10.1016/j.joen.2020.06.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/10/2020] [Accepted: 06/19/2020] [Indexed: 11/18/2022]
Abstract
INTRODUCTION This study aimed to evaluate the effect of ultrasonic activation (UA) of endodontic sealers on dentin tubule penetration and the bond strength to root dentin. METHOD One hundred single-rooted teeth were prepared with 40.06 nickel-titanium instruments and divided into 2 groups: with or without UA. Three resin-based sealers (MTA Fillapex [Angelus Dental Solutions, Londrina, PR, Brazil], Sealer Plus [MK Life Medical and Dental Products, Porto Alegre, RS, Brazil], and AH Plus [Dentsply, DeTrey GmbH, Konstanz, Germany]; n = 20) and 2 calcium silicate-based sealers (Sealer Plus BC [MK Life Medical and Dental Products] and EndoSequence BC [Brasseler, Savannah, GA], n = 20) were used and subdivided (n = 10) according to the protocols. Fluo-3 (Thermo Fisher Scientific, Waltham, MA) and rhodamine B dyes were added to the calcium silicate- and resin-based sealers, respectively. In the UA groups, the activation was performed for 40 seconds followed by lateral compaction. Samples were transversely sectioned to evaluate the dentin tubule penetration and the bond strength to root dentin. The penetration data were analyzed with the Student t test, 1-factor analysis of variance, and Bonferroni tests. Bond strength was evaluated using the Student t test, Kruskal-Wallis, and Dunn post hoc test. RESULTS Resin-based sealers showed the highest tubule penetration without UA (P < .05). UA significantly enhanced MTA Fillapex and Endosequence BC dentin tubule penetration (P < .05). AH Plus and Sealer Plus BC improved their bond strength to root dentin after UA (P < .05). AH Plus/UA, Sealer Plus/UA, and Sealer Plus BC/UA presented the highest bond strength values (P < .05). Adhesive failures were predominant in all groups regardless of the use of ultrasound. CONCLUSIONS UA interferes with tubule penetration and the bond strength to root dentin of resin- and calcium silicate-based sealers.
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Affiliation(s)
- Igor Abreu De Bem
- Department of Conservative Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Renata Aqel de Oliveira
- Department of Conservative Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Theodoro Weissheimer
- Department of Conservative Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | | | - Marcus Vinícius Reis Só
- Department of Conservative Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Ricardo Abreu da Rosa
- Department of Conservative Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
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Sun X, Sun A, Jia X, Jin S, Zhang D, Xiao K, Wang Q. In vitro bioactivity of AH plus with the addition of nano-magnesium hydroxide. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:313. [PMID: 32355757 PMCID: PMC7186602 DOI: 10.21037/atm.2020.02.133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background AH Plus (AH) has been widely used as a root canal sealer in the endodontic field due to its superior physicochemical properties. However, clinical application of AH is limited due to its weak bioactivity. Methods In this study, we have developed an AH cement containing nano-magnesium hydroxide (NMH) as an additive to enhance the bioactivity of AH. The NMH can neutralize pH and facilitate bone formation. The objective of this study was to evaluate the effects of NMH and modified AH on osteoblasts behavior in vitro. The CCK-8, alkaline phosphatase (ALP) staining, and real-time polymerase chain reaction (PCR) assays were used to assess the proliferation and differentiation of MC3T3-E1 cells, respectively. The adhesion and spreading of MC3T3-E1 cells were investigated in vitro by scanning electron microscopy (SEM). Meanwhile, the flow and magnesium ion release of the modified AH was also concerned. Results In vitro cell assays further showed that the addition of NMH into AH cement, which was denoted as modified AH (especially AH+3%NMH), could effectively improve the proliferation and osteogenic differentiation of MC3T3-E1 cells. Conclusions Taken all together, we believe that the modified AH samples (especially AH+3%NMH) have outstanding biocompatibility and osteogenic properties and may have great potential in endodontic field.
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Affiliation(s)
- Xiujuan Sun
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China
| | - Aoteng Sun
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China
| | - Xingya Jia
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China
| | - Shi Jin
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China
| | - Dan Zhang
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China.,Liaoning Provincial Key Laboratory of Oral Diseases, China Medical University, Shenyang 110002, China
| | - Keshen Xiao
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110002, China
| | - Qiang Wang
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China.,Liaoning Provincial Key Laboratory of Oral Diseases, China Medical University, Shenyang 110002, China
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Comparative Evaluation of Physicochemical Properties and Apical Sealing Ability of a Resin Sealer Modified with Pachymic Acid. Eur Endod J 2020; 5:23-27. [PMID: 32342034 PMCID: PMC7183805 DOI: 10.14744/eej.2019.68442] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 09/04/2019] [Indexed: 02/05/2023] Open
Abstract
Objective: The addition of pachymic acid (PA) to AH Plus (an epoxy resin sealer) offsets the cytotoxicity of the latter. Prior to the clinical implementation of this formulation, a thorough knowledge of its physicochemical properties and sealing ability becomes mandatory. Hence, this in vitro study aimed to characterize and evaluate the physicochemical properties and apical sealing ability of AH Plus (AHP) with and without the addition of PA. Methods: Flow, setting time, film thickness, solubility and radiopacity of AHP (group 1) and AHP modified with PA (AHP/PA, group 2) were evaluated in accordance with the guidelines put forth by ISO 6876:2012. The percentage was determined under each parameter. Apical sealing ability was assessed using fluid filtration device. An independent samples t-test was used for inter- and intra-group comparisons of mean fluid flow (MFF). Results: Incorporating PA to AHP decreased its flow, setting time and film thickness by 24.34%, 2.14% and 31.71% respectively. The solubility of group 2 increased on day 1 by 85.71% and decreased on days 3, 7 and 14 by 46.67%, 34.79% and 13.8% respectively. The radiopacity of AHP was not altered by the addition of PA. MFF rates of group 2 was significantly higher than group 1 on day 1, but not significantly different on day 7. Conclusion: AHP/PA exhibited physicochemical properties that were within the requirements of ISO and with time, and showed fluid flow similar to AHP.
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Guimarães VBDS, Barboza ADS, Cuevas-Suárez CE, Collares T, Larré Oliveira T, Ribeiro AS, Lisboa MT, Pappen FG, Lund RG. Physico-chemical and antimicrobial properties and the shelf life of experimental endodontic sealers containing metal methacrylates. BIOFOULING 2020; 36:416-427. [PMID: 32441120 DOI: 10.1080/08927014.2020.1767081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 04/27/2020] [Accepted: 04/29/2020] [Indexed: 06/11/2023]
Abstract
The objective of this study was to evaluate the physico-chemical and antimicrobial properties of a dual polymerization experimental endodontic sealer (E) and experimental sealers containing dibutyltin methacrylate (Sn2+) (ETs) or calcium methacrylate (Ca2+) (ECs). The pH and ion release levels of the sealers were measured. The dimensional stability was evaluated in accordance with ISO 6876. Biofilm growth inhibition was evaluated using confocal laser scanning microscopy (CLSM). Biofilm viability analysis was performed using the SYTO 9 technique. The shelf life was evaluated through the degree of conversion and film thickness tests after the sealers had been stored for different periods of time. For statistical analysis, ANOVA and Tukey's post hoc test were used, with a significance level of 5%. ETs revealed better anti-biofilm potential after 15 days than that of the controls. The degree of conversion was reduced after the shelf-life period. The addition of calcium and dibutyltin methacrylate improved the anti-biofilm properties of the experimental endodontic sealer without impairing their physico-chemical properties.
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Affiliation(s)
| | | | - Carlos Enrique Cuevas-Suárez
- Dental Materials Laboratory, Academic Area of Dentistry, Autonomous University of Hidalgo State, San Agustín Tlaxiaca, Hgo, Mexico
| | - Tiago Collares
- Cancer Biotechnology Laboratory, School of Biotechnology, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Thaís Larré Oliveira
- Cancer Biotechnology Laboratory, School of Biotechnology, Federal University of Pelotas, Pelotas, RS, Brazil
- Laboratory of Vaccinology, School of Biotechnology, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Anderson Schwingel Ribeiro
- Graduate Program in Chemistry, School of Chemistry, Chemical Metrology Laboratory (LabMeQui), Federal University of Pelotas, Pelotas, RS, Brazil
| | - Meibel Teixeira Lisboa
- Graduate Program in Chemistry, School of Chemistry, Chemical Metrology Laboratory (LabMeQui), Federal University of Pelotas, Pelotas, RS, Brazil
| | | | - Rafael Guerra Lund
- Laboratory of Microbiology, Pelotas Dental School, Federal University of Pelotas, Pelotas, RS, Brazil
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Jing Y, Gong T, Duan C, Wang H, Zhang C, Neelakantan P. In vitro cytocompatibility and osteogenic potential of calcium silicate-based dental cements in a root canal-filling model. J Int Med Res 2020; 48:300060519894801. [PMID: 31884862 PMCID: PMC7645323 DOI: 10.1177/0300060519894801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 11/12/2019] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVE To investigate the in vitro cytocompatibility and osteogenic potential of an experimental calcium silicate-based cement and the inflammatory response in human periodontal ligament stem cells (hPDLSCs). METHODS Cellular responses, osteogenic-related gene expression, and the production of inflammatory cytokines including interleukin (IL)-6 and IL-8 were studied in hPDLSCs exposed to the experimental root canal-filling material C-Root, the commercial tricalcium silicate-based material BioRoot RCS, and the epoxy resin-based material AH Plus. Differences were analyzed using one-way ANOVA with Bonferroni-adjusted pairwise comparison. RESULTS Exposure to BioRoot and C-Root caused time-dependent increases in cell proliferation. Significantly more mineralized nodules were formed in cells exposed to AH Plus and BioRoot compared with the negative control. Alkaline phosphatase (ALP) activity was significantly lower in AH Plus cells compared with negative control, BioRoot, and C-Root cells. ALP, osteocalcin (OCN), and runt-related transcription factor2 (RUNX2) mRNA expression levels were all significantly higher in C-Root compared with AH Plus cells at day 7. IL-6 and IL-8 levels differed significantly among the experimental groups, with the highest IL-8 levels in BioRoot cells at days 7 and 14. CONCLUSION The experimental root canal-filling material C-Root has similar in vitro cytocompatibility to BioRoot and better osteogenic potential than AH Plus.
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Affiliation(s)
- Yan Jing
- The Fifth Division, Peking University School of Stomatology, Beijing, China
- Discipline of Endodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR
| | - Ting Gong
- Discipline of Endodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR
| | - Chenggang Duan
- The Fifth Division, Peking University School of Stomatology, Beijing, China
| | - Huan Wang
- The Fifth Division, Peking University School of Stomatology, Beijing, China
| | - Chengfei Zhang
- Discipline of Endodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR
| | - Prasanna Neelakantan
- Discipline of Endodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR
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Influence of endodontic sealers with different chemical compositions on bond strength of the resin cement/glass fiber post junction to root dentin. Clin Oral Investig 2020; 24:3417-3423. [PMID: 31980923 DOI: 10.1007/s00784-020-03212-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 01/15/2020] [Indexed: 10/25/2022]
Abstract
OBJECTIVE This study evaluated the influence of endodontic sealers with different chemical compositions on bond strength of resin cement/glass fiber post junction to root dentin. MATERIALS AND METHODS Seventy-two maxillary canines roots were instrumented with Reciproc (#R50) and distributed in 6 groups (n = 12) according to endodontic sealers: G1-control (no sealer); G2-Endofill; G3-Sealapex; G4-AH Plus; G5-Sealer Plus; G6-EndoSequence BC. The glass fiber post was cemented with Panavia F in 10 of the specimens. Two specimens from each group did not receive post and were analyzed by SEM to verify presence of filling material. Three slices were obtained from each third. The first slice was subjected to push-out test and type of failure. The second slice was imaged using laser confocal microscopy for evaluation of dentin/resin cement adhesive interface. Bond strength (BS) data were analyzed using two-way ANOVA and Tukey's post hoc tests; for LCM data, we used Kruskal-Wallis and Dunn's tests. RESULTS Endofill yielded the lowest BS values (p < 0.05). The control and AH Plus groups differed from all others (p < 0.05). In all groups, adhesive to dentin failure predominated. Most specimens of control and AH Plus groups had acceptable interfaces, while those of EndoSequence BC, Sealapex, and Sealer Plus groups ranged between acceptable and poor interfaces. Overall, few filling material remnants were observed on the dentin. CONCLUSION EndoSequence BC, Sealapex, Sealer Plus, and Endofill negatively interfere with BS of glass fiber post/resin cement junction to root dentin. CLINICAL RELEVANCE In cases whose restoration planning includes a post cemented with resin cement, it is recommended that endodontic sealer be based on epoxy resin.
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Tanomaru-Filho M, Cristine Prado M, Torres FFE, Viapiana R, Pivoto-João MMB, Guerreiro-Tanomaru JM. Physicochemical Properties and Bioactive Potential of a New Epoxy Resin-based Root Canal Sealer. Braz Dent J 2019; 30:563-568. [PMID: 31800750 DOI: 10.1590/0103-6440201802861] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 07/29/2019] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to evaluate physicochemical properties and bioactive potential of Sealer Plus, in comparison with MTA Fillapex, Sealapex and AH Plus. Setting time, flow, and radiopacity were evaluated based on ISO 6876 Standard. Flow was also assessed in area (mm²). The solubility and volumetric change of the sealers were evaluated after 7 and 30 days of immersion in distilled water. Solubility was evaluated by the difference in mass of materials before and after immersion. Volumetric change was evaluated by using microcomputed tomography (micro-CT). The bioactive potential was observed by Scanning Electron Microscopy (SEM) after immersion in PBS. Data were compared using ANOVA and Tukey tests (α=0.05). Sealer Plus presented the shortest setting time (196 min.) and Sealapex the longest (912 min.) (p<0.05). AH Plus showed the highest radiopacity (9.5 mm Al) and MTA Fillapex the lowest (2.7 mm Al) (p<0.05). All the sealers presented flow in accordance with ISO 6876/2012 (>17 mm). Sealer Plus showed low solubility and volumetric change (<1%), and MTA Fillapex showed the highest solubility (>25%), and volumetric change (>4%) after all time intervals (p<0.05). MTA Fillapex was the only sealer that showed bioactive potential. In conclusion, Sealer Plus presented proper physicochemical properties. However, this sealer did not present a bioactive potential.
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Affiliation(s)
- Mario Tanomaru-Filho
- Department of Restorative Dentistry, School of Dentistry, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Maiby Cristine Prado
- Department of Restorative Dentistry, School of Dentistry, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
| | | | - Raqueli Viapiana
- Department of Restorative Dentistry, School of Dentistry, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
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Evaluation of Physicochemical Properties of a New Calcium Silicate–based Sealer, Bio-C Sealer. J Endod 2019; 45:1248-1252. [DOI: 10.1016/j.joen.2019.07.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 07/09/2019] [Accepted: 07/10/2019] [Indexed: 12/27/2022]
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Vilela Teixeira AB, de Carvalho Honorato Silva C, Alves OL, Cândido dos Reis A. Endodontic Sealers Modified with Silver Vanadate: Antibacterial, Compositional, and Setting Time Evaluation. BIOMED RESEARCH INTERNATIONAL 2019; 2019:4676354. [PMID: 31211137 PMCID: PMC6532301 DOI: 10.1155/2019/4676354] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 04/04/2019] [Accepted: 04/23/2019] [Indexed: 11/18/2022]
Abstract
The incorporation of nanoparticles into endodontic sealers aims at increasing antimicrobial activity of the original material. Aim. The aim of this study is to incorporate the nanostructured silver vanadate decorated with silver nanoparticles (AgVO3, at 2.5%, 5%, and 10%) into three endodontic sealers and evaluate the antibacterial activity of freshly sealers, surface topography and chemical composition, and setting time. Material and Methods. The AgVO3 was incorporated into AH Plus, Sealer 26, and Endomethasone N at concentrations 0%, 2.5%, 5%, and 10% (in mass). The antibacterial activity of freshly sealers was assessed by direct contact with Enterococcus faecalis and CFU/mL count (n=10), surface topography, and chemical composition were measured by SEM/EDS, and the setting time was measured by Gillmore needle (n=10). The Kruskal-Wallis and Dunn statistical tests were applied (α=0.05). Results. All groups of sealers evaluated inhibited E. faecalis (p>0.05). The incorporation of AgVO3 altered the atomic proportions between components of the endodontic sealers, and the percentage of silver (Ag) and vanadium (V) increased proportionally to the concentrations of AgVO3. Topography analysis showed differences in components distribution on the surface of the specimens. The sealers incorporated with AgVO3 of AH Plus presented a lower setting time than the control group (p<0.05). For Sealer 26 and Endomethasone N, the incorporation of AgVO3 increased the setting time in relation to control group (p<0.05). Conclusions. The modification of endodontic sealers by AgVO3 increased the atomic percentage of Ag and V proportionally to the concentration of the nanomaterial and changed the atomic percentage of the sealer components and setting times. It cannot be affirmed that the AgVO3 promote differences in the antimicrobial activity of freshly sealers, and further investigations of the antimicrobial activity of the set sealers should be carried out.
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Affiliation(s)
- Ana Beatriz Vilela Teixeira
- Dental Materials and Prosthesis Department, Ribeirão Preto School of Dentistry, University of São Paulo, 14040-904 Ribeirão Preto, SP, Brazil
| | - Caroline de Carvalho Honorato Silva
- Dental Materials and Prosthesis Department, Ribeirão Preto School of Dentistry, University of São Paulo, 14040-904 Ribeirão Preto, SP, Brazil
| | - Oswaldo Luiz Alves
- Laboratory of Solid State Chemistry, Institute of Chemistry, University of Campinas (Unicamp), 13083-970 Campinas, SP, Brazil
| | - Andréa Cândido dos Reis
- Dental Materials and Prosthesis Department, Ribeirão Preto School of Dentistry, University of São Paulo, 14040-904 Ribeirão Preto, SP, Brazil
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Mendes AT, Silva PBD, Só BB, Hashizume LN, Vivan RR, Rosa RAD, Duarte MAH, Só MVR. Evaluation of Physicochemical Properties of New Calcium Silicate-Based Sealer. Braz Dent J 2018; 29:536-540. [DOI: 10.1590/0103-6440201802088] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 06/21/2018] [Indexed: 11/22/2022] Open
Abstract
Abstract This study aimed to evaluate the physicochemical properties of a calcium silicate-based sealer (Sealer Plus BC; MK Life, Porto Alegre, Brazil) compared with an epoxy-resin sealer (AH Plus; Dentsply DeTrey GmbH, Konstanz, Germany). Initial and final setting time was assessed based on ISO 6876:2012 and ASTM C266:03. Calcium ion release and pH were evaluated by filling polyethylene tubes with sealers and then immersing them in 10 mL of deionized water. Following experimental periods of 1, 24, 72 and 168 hours, the samples were measured regarding pH and calcium ion release with a pH meter and a colorimetric spectrophotometer, respectively. The flow was examined based on ISO 6876:2012. Rings of 10 mm in diameter with 1 mm thickness were prepared to analyze the radiopacity (ISO 6876:2012 and ADA n.57) and solubility (ISO 6876:2012). The data were analyzed by variance analysis, Student-T and Tukey tests (p<0.05). The calcium ion release and pH values were significantly higher for the Sealer Plus BC compared with the AH Plus (p<0.05). Lower setting time, flow and radiopacity were observed for the bioceramic sealer than for AH Plus (p<0.05). Sealer Plus BC exhibited higher solubility compared with AH Plus (p<0.05). Sealer Plus BC showed physicochemical properties as setting time, pH, calcium release, flow, and radiopacity following the required standards, but higher solubility than the minimum values required by ISO 6876:2012.
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Piai GG, Duarte MAH, Nascimento ALD, Rosa RAD, Só MVR, Vivan RR. Penetrability of a new endodontic sealer: A confocal laser scanning microscopy evaluation. Microsc Res Tech 2018; 81:1246-1249. [PMID: 30295382 DOI: 10.1002/jemt.23129] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 07/05/2018] [Accepted: 08/20/2018] [Indexed: 11/11/2022]
Abstract
This study aimed to evaluate the penetration of a new endodontic sealer into the dentinal tubules. Twenty single-rooted teeth were selected. The crown was sectioned, and the canals were instrumented with a reciprocating system. Irrigation was performed with 2 mL of 2.5% sodium hypochlorite between each file change. After instrumentation, the root canals were irrigated with 2 mL of17% EDTA for 3 min followed by saline solution. The specimens were randomized into two groups (n =10) according to the endodontic sealer: AH Plus (AP) or Sealer Plus (SP). All specimens were filled using the lateral compaction technique. Rhodamine B dye (red) was incorporated to the sealers to provide the fluorescence which will enable confocal laser scanning microscopy (CLSM) assessment. The roots were sectioned 2, 4, and 6 mm from the apex and assessed by CLSM. The root canal level affected the penetration of the sealer, but no statistical significant differences were found between the two experimental groups (p > .05). SP presented similar dentinal penetration and perimeter integrity to the gold standard (AP). RESEARCH HIGHLIGHTS: Sealer Plus presents dentinal penetrability and perimeter integrity similar to the gold standard sealer (AH Plus), demonstrating excellent ability of filling areas of difficult access.
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Affiliation(s)
- Gabriela Gonçalez Piai
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Marco Antônio Húngaro Duarte
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Angela Longo do Nascimento
- Department of Conservative Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Ricardo Abreu da Rosa
- Department of Conservative Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Marcus Vinícius Reis Só
- Department of Conservative Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Rodrigo Ricci Vivan
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
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RIVERA-PEÑA ME, DUARTE MAH, ALCALDE MP, DE ANDRADE FB, VIVAN RR. A novel ultrasonic tip for removal of filling material in flattened/oval-shaped root canals: a microCT study. Braz Oral Res 2018; 32:e88. [DOI: 10.1590/1807-3107bor-2018.vol32.0088] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 07/17/2018] [Indexed: 11/22/2022] Open
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28
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Almeida LHS, Moraes RR, Morgental RD, Cava SS, Rosa WLO, Rodrigues P, Ribeiro AS, Só M, Pappen FG. Synthesis of silver-containing calcium aluminate particles and their effects on a MTA-based endodontic sealer. Dent Mater 2018; 34:e214-e223. [DOI: 10.1016/j.dental.2018.05.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 03/29/2018] [Accepted: 05/09/2018] [Indexed: 10/16/2022]
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