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Colonello GP, Suffredini IB, Andia DC, Lima AF, Saraceni CHC. Evaluating antimicrobial, cytotoxic and immunomodulatory effects of glass ionomer cement modified by chitosan and hydroxyapatite. Dent Mater 2024; 40:1305-1311. [PMID: 38876828 DOI: 10.1016/j.dental.2024.05.021] [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: 12/26/2023] [Revised: 05/13/2024] [Accepted: 05/22/2024] [Indexed: 06/16/2024]
Abstract
OBJECTIVES This study aimed to assess antimicrobial efficacy, cytotoxicity, and cytokine release (IL-1b, IL-6, IL-10, TNF-α) from human dental pulp stem cells (hDPSCs) of chitosan (CH) and hydroxyapatite (HAp)-modified glass ionomer cements (GIC). METHODS GICs with varied CH and HAp concentrations (0 %, 0.16 %, 2 %, 5 %, 10 %) were tested against S. mutans for 24 h or 7 days. Antimicrobial activity was measured using an MTT test. Cytotoxicity evaluation followed for optimal concentrations, analyzing mitochondrial activity and apoptosis in hDPSCs. Cytokine release was assessed with MAGPIX. Antimicrobial analysis used Shapiro-Wilk, Kruskal-Wallis, and Dunnett tests. Two-way ANOVA, Tukey, and Dunnett tests were applied for hDP metabolism and cytokine release. RESULTS CH 2 % and HAp 5 % significantly enhanced GIC antimicrobial activity, especially after seven days. In immediate analysis, all materials showed reduced mitochondrial activity compared to the control. After 24 h, CH demonstrated mitochondrial metabolism similar to the control. All groups exhibited mild cytotoxicity (∼30 % cell death). Only IL-6 was influenced, with reduced release in experimental groups. SIGNIFICANCE CH 2 % and HAp 5 % were most effective for antibacterial effects. GIC-CH 2 % emerged as the most promising formula, displaying significant antibacterial effects with reduced hDPSC toxicity.
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Affiliation(s)
- Gabriel Peres Colonello
- Dental Research Division, Paulista University, Rua Doutor Bacelar, 1212l̥, Sao Paulo 04026-002, Brazil
| | - Ivana Barbosa Suffredini
- Programa de Pós Graduação em Patologia Ambiental e Experimental, Universidade Paulista - Unip, São Paulo, SP, Brazil
| | - Denise Carleto Andia
- Dental Research Division, Paulista University, Rua Doutor Bacelar, 1212l̥, Sao Paulo 04026-002, Brazil
| | - Adriano Fonseca Lima
- Dental Research Division, Paulista University, Rua Doutor Bacelar, 1212l̥, Sao Paulo 04026-002, Brazil.
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Fernandes GLP, Vanim MM, Delbem ACB, Martorano AS, Raucci LMSDC, de Oliveira PT, Zucolotto V, Dias BJM, Brighenti FL, de Oliveira AB, Moraes JCS, de Camargo ER, Danelon M. Antibacterial, cytotoxic and mechanical properties of a orthodontic cement with phosphate nano-sized and phosphorylated chitosan: An in vitro study. J Dent 2024; 146:105073. [PMID: 38782176 DOI: 10.1016/j.jdent.2024.105073] [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: 03/22/2024] [Revised: 05/10/2024] [Accepted: 05/13/2024] [Indexed: 05/25/2024] Open
Abstract
OBJECTIVES Evaluate, in vitro, the effect of incorporating nano-sized sodium trimetaphosphate (TMPnano) and phosphorylated chitosan (Chi-Ph) into resin-modified glass ionomer cement (RMGIC) used for orthodontic bracket cementation, on mechanical, fluoride release, antimicrobial and cytotoxic properties. METHODS RMGIC was combined with Chi-Ph (0.25%/0.5%) and/or TMPnano (14%). The diametral compressive/tensile strength (DCS/TS), surface hardness (SH) and degree of conversion (%DC) were determined. For fluoride (F) release, samples were immersed in des/remineralizing solutions. Antimicrobial/antibiofilm activity was evaluated by the agar diffusion test and biofilm metabolism (XTT). Cytotoxicity in fibroblasts was assessed with the resazurin method. RESULTS After 24 h, the RMGIC-14%TMPnano group showed a lower TS value (p < 0.001); after 7 days the RMGIC-14%TMPnano-0.25%Chi-Ph group showed the highest value (p < 0.001). For DCS, the RMGIC group (24 h) showed the highest value (p < 0.001); after 7 days, the highest value was observed for the RMGIC-14%TMPnano-0.25%Chi-Ph (p < 0.001). RMGIC-14%TMPnano, RMGIC-14%TMPnano-0.25%Chi-Ph, RMGIC-14%TMPnano-0.5%Chi-Ph showed higher and similar release of F (p > 0.001). In the SH, the RMGIC-0.25%Chi-Ph; RMGIC-0.5%Chi-Ph; RMGIC-14%TMPnano-0.5%Chi-Ph groups showed similar results after 7 days (p > 0.001). The RMGIC-14%TMPnano-0.25%Chi-Ph group showed a better effect on microbial/antibiofilm growth, and the highest efficacy on cell viability (p < 0.001). After 72 h, only the RMGIC-14%TMPnano-0.25%Chi-Ph group showed cell viability (p < 0.001). CONCLUSION The RMGIC-14%TMPnano-0.25%Chi-Ph did not alter the physical-mechanical properties, was not toxic to fibroblasts and reduced the viability and metabolism of S. mutans. CLINICAL RELEVANCE The addition of phosphorylated chitosan and organic phosphate to RMGIC could provide an antibiofilm and remineralizing effect on the tooth enamel of orthodontic patients, who are prone to a high cariogenic challenge due to fluctuations in oral pH and progression of carious lesions.
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Affiliation(s)
- Gabriela Leal Peres Fernandes
- São Paulo State University (UNESP), School of Dentistry, Araçatuba, Department of Preventive and Restorative Dentistry, Rua José Bonifácio 1193 Araçatuba, SP, 16015-050, Brazil
| | - Manuela Marquesini Vanim
- School of Dentistry, University of Ribeirão Preto - UNAERP, Ribeirão Preto, SP, 14096-900, Brazil
| | - Alberto Carlos Botazzo Delbem
- São Paulo State University (UNESP), School of Dentistry, Araçatuba, Department of Preventive and Restorative Dentistry, Rua José Bonifácio 1193 Araçatuba, SP, 16015-050, Brazil
| | | | | | | | - Valtencir Zucolotto
- São Carlos Institute of Physics, University of São Paulo, São Carlos, SP, Brazil
| | | | - Fernanda Lourenção Brighenti
- Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, São Paulo State University (Unesp), School of Dentistry, R. Humaitá, 1680 - Centro, Araraquara, São Paulo 14801-903, Brazil
| | - Analú Barros de Oliveira
- Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, São Paulo State University (Unesp), School of Dentistry, R. Humaitá, 1680 - Centro, Araraquara, São Paulo 14801-903, Brazil
| | - João Carlos Silos Moraes
- Department of Physics and Chemistry, São Paulo State University (UNESP), Ilha Solteira, SP, Brazil
| | - Emerson Rodrigues de Camargo
- Interdisciplinary Laboratory of Electrochemistry and Ceramics, Department of Chemistry, Federal University of São Carlos (UFSCar), Rod. Washington Luiz, s/n, São Carlos, 13565-905 Brazil
| | - Marcelle Danelon
- São Paulo State University (UNESP), School of Dentistry, Araçatuba, Department of Preventive and Restorative Dentistry, Rua José Bonifácio 1193 Araçatuba, SP, 16015-050, Brazil.
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Vilela HS, Trinca RB, Alves TVM, Scaramucci T, Sakae LO, Mariano FS, Giannini M, Silva FRO, Braga RR. Effect of a calcium silicate cement and experimental glass ionomer cements containing calcium orthophosphate particles on demineralized dentin. Clin Oral Investig 2024; 28:97. [PMID: 38225525 DOI: 10.1007/s00784-024-05489-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 01/03/2024] [Indexed: 01/17/2024]
Abstract
OBJECTIVE The study aims to evaluate the effect of a glass ionomer cement (GIC; Fuji 9 Gold Label, GC) with added calcium orthophosphate particles and a calcium silicate cement (CSC; Biodentine, Septodont) regarding ion release, degradation in water, mineral content, and mechanical properties of demineralized dentin samples. METHODS GIC, GIC + 5% DCPD (dicalcium phosphate dihydrate), GIC + 15% DCPD, GIC + 5% β-TCP (tricalcium phosphate), GIC + 15% β-TCP (by mass), and CSC were evaluated for Ca2+/Sr2+/F- release in water for 56 days. Cement mass loss was evaluated after 7-day immersion in water. Partially demineralized dentin disks were kept in contact with materials while immersed in simulated body fluid (SBF) at 37 °C for 56 days. The "mineral-to-matrix ratio" (MMR) was determined by ATR-FTIR spectroscopy. Dentin hardness and elastic modulus were obtained by nanoindentation. Samples were observed under scanning and transmission electron microscopy. Data were analyzed by ANOVA/Tukey test (α = 0.05). RESULTS Ca2+ release from CSC and GIC (μg/cm2) were 4737.0 ± 735.9 and 13.6 ± 1.6, respectively. In relation to the unmodified GIC, the addition of DCPD or β-TCP increased ion release (p < 0.001). Only the dentin disks in contact with CSC presented higher MMR (p < 0.05) and mechanical properties than those restored with a resin composite used as control (p < 0.05). Mass loss was similar for GIC and CSC; however, the addition of DCPD or β-TCP increased GIC degradation (p < 0.05). CONCLUSION Despite the increase in ion release, the additional Ca2+ sources did not impart remineralizing capability to GIC. Both unmodified GIC and CSC showed similar degradation in water. CLINICAL RELEVANCE CSC was able to promote dentin remineralization.
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Affiliation(s)
- Handially S Vilela
- Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227, São Paulo, SP, 05508-000, Brazil
| | - Rafael B Trinca
- Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227, São Paulo, SP, 05508-000, Brazil
| | - Tarsila V M Alves
- Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227, São Paulo, SP, 05508-000, Brazil
| | - Tais Scaramucci
- Department of Restorative Dentistry, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Leticia O Sakae
- Department of Restorative Dentistry, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Flávia S Mariano
- Department of Restorative Dentistry, School of Dentistry, University of Campinas, São Paulo, Brazil
| | - Marcelo Giannini
- Department of Restorative Dentistry, School of Dentistry, University of Campinas, São Paulo, Brazil
| | - Flávia R O Silva
- Institute of Energy and Nuclear Research, University of São Paulo, São Paulo, Brazil
| | - Roberto R Braga
- Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227, São Paulo, SP, 05508-000, Brazil.
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Bilić-Prcić M, Rajić VB, Ivanišević A, Pilipović A, Gurgan S, Miletić I. Mechanical Properties of Glass Ionomer Cements after Incorporation of Marine Derived Porous Cuttlefish Bone Hydroxyapatite. MATERIALS 2020; 13:ma13163542. [PMID: 32796624 PMCID: PMC7475982 DOI: 10.3390/ma13163542] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/06/2020] [Accepted: 08/09/2020] [Indexed: 01/11/2023]
Abstract
The purpose of this study was to evaluate the effects of the incorporation of hydroxyapatite (HA) derived from cuttlefish bone on the mechanical properties of glass ionomer cements (GIC). Fuji II LC and Fuji IX GP Extra (GC Corporation, Tokyo, Japan) were used in the study. There were four groups (n = 11–18) for each material: a group without the addition of HA particles and three groups modified by incorporation of 2, 5, and 10 wt% HA. The tests were performed on a universal testing machine (Shimadzu, Duisburg, Germany) and descriptive statistics, two-way analysis of variance (ANOVA) for the comparison of three mechanical properties, and one-way ANOVA for the comparison of different concentrations for each material were performed. Regarding the Fuji IX groups, compressive strength (CS) and flexural strength (FS) were highest in the group without HA particles added. The differences in CS between the Fuji IX group without HA particles and the Fuji IX groups with 2 wt% HA and 10 wt% HA were significant. The Fuji II 5 wt% HA group exhibited higher diametral tensile strength (DTS) and CS than other Fuji II groups, but not significantly. The Fuji II group, modified with 10 wt% HA, exhibited significantly higher FS than the Fuji II group without HA particles (p < 0.05). Porous HA incorporated into the Fuji IX groups had a significant impact on mechanical properties only in the Fuji IX 5 wt% HA group. Fuji II groups modified with 10 wt% HA showed the most favorable results with respect to FS.
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Affiliation(s)
- Maja Bilić-Prcić
- School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia; (M.B.-P.); (V.B.R.); (I.M.)
| | - Valentina Brzović Rajić
- School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia; (M.B.-P.); (V.B.R.); (I.M.)
| | - Ana Ivanišević
- School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia; (M.B.-P.); (V.B.R.); (I.M.)
- Correspondence: ; Tel.: +385-1-4802-126
| | - Ana Pilipović
- Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Lučićeva 5, 10000 Zagreb, Croatia;
| | - Sevil Gurgan
- School of Dentistry, Hacettepe University, Ankara 06100, Turkey;
| | - Ivana Miletić
- School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia; (M.B.-P.); (V.B.R.); (I.M.)
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Imataki R, Shinonaga Y, Nishimura T, Abe Y, Arita K. Mechanical and Functional Properties of a Novel Apatite-Ionomer Cement for Prevention and Remineralization of Dental Caries. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E3998. [PMID: 31810251 PMCID: PMC6926968 DOI: 10.3390/ma12233998] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 11/28/2019] [Accepted: 11/29/2019] [Indexed: 01/17/2023]
Abstract
Especially in pediatric dentistry, prevention by the control of initial lesions prior to cavitation is very important, and application of a pit and fissure sealant is essential to achieve this. Numerous reports have suggested that resin-based sealants are inferior to sealants based on glass-ionomer cement (GIC), because of GIC's many advantages, such as fluoride ion release properties and its good adhesion to tooth structures. However, the use of GIC is impeded due to its low flexural strength and fracture toughness. In this paper, we developed and characterized an apatite-ionomer cement (AIC) that incorporates hydroxyapatite (HAp) into the GIC; this development was aimed at not only reinforcing the flexural and compressive strength but also improving some functional properties for the creation of the material suitable for sealant. We examined the influence of differences in the compounding conditions of GIC powder, liquid, and HAp on flexural and compressive strengths, fracture toughness, fluoride ion release property, shear bond strength to bovine enamel, surface pH of setting cements, and acid buffer capability. These methods were aimed at elucidating the reaction mechanism of porous spherical-shaped HAp (HApS) in AIC. The following observations were deduced. (1) HAp can improve the mechanical strengths of AIC by strengthening the cement matrix. (2) The functional properties of AIC, such as acid buffer capability, improved by increasing the releasing amounts of various ions including fluoride ions. The novel AIC developed in this study is a clinically effective dental material for prevention and remineralization of tooth and initial carious lesion.
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Affiliation(s)
- Rie Imataki
- Graduate School of Dentistry (Department of Pediatric Dentistry), Osaka Dental University, 8-1, Kuzuhahanazono-cho, Hirakata-shi, Osaka 573-1121, Japan;
| | - Yukari Shinonaga
- Department of Pediatric Dentistry, School of Dentistry, Osaka Dental University, 8-1, Kuzuhahanazono-cho, Hirakata-shi, Osaka 573-1121, Japan; (T.N.); (Y.A.); (K.A.)
| | - Takako Nishimura
- Department of Pediatric Dentistry, School of Dentistry, Osaka Dental University, 8-1, Kuzuhahanazono-cho, Hirakata-shi, Osaka 573-1121, Japan; (T.N.); (Y.A.); (K.A.)
| | - Yoko Abe
- Department of Pediatric Dentistry, School of Dentistry, Osaka Dental University, 8-1, Kuzuhahanazono-cho, Hirakata-shi, Osaka 573-1121, Japan; (T.N.); (Y.A.); (K.A.)
| | - Kenji Arita
- Department of Pediatric Dentistry, School of Dentistry, Osaka Dental University, 8-1, Kuzuhahanazono-cho, Hirakata-shi, Osaka 573-1121, Japan; (T.N.); (Y.A.); (K.A.)
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Effects of Powdery Cellulose Nanofiber Addition on the Properties of Glass Ionomer Cement. MATERIALS 2019; 12:ma12193077. [PMID: 31547222 PMCID: PMC6803938 DOI: 10.3390/ma12193077] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 09/18/2019] [Accepted: 09/19/2019] [Indexed: 11/17/2022]
Abstract
In this study, we aimed to evaluate the effect of the addition of powdery cellulose nanofibers (CNFs) on the mechanical properties of glass ionomer cement (GIC) without negatively affecting its chemical properties. Commercial GIC was reinforced with powdery CNFs (2–8 wt.%) and characterized in terms of flexural strength, compressive strength, diametral tensile strength, and fluoride-ion release properties. Powdery CNFs and samples subjected to flexural strength testing were observed via scanning electron microscopy. CNF incorporation was found to significantly improve the flexural, compressive, and diametral tensile strengths of GIC, and the corresponding composite was shown to contain fibrillar aggregates of nanofibers interspersed in the GIC matrix. No significant differences in fluoride-ion release properties were observed between the control GIC and the CNF-GIC composite. Thus, powdery CNFs were concluded to be a promising GIC reinforcement agent.
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Kutuk ZB, Vural UK, Cakir FY, Miletic I, Gurgan S. Mechanical properties and water sorption of two experimental glass ionomer cements with hydroxyapatite or calcium fluorapatite formulation. Dent Mater J 2019; 38:471-479. [PMID: 31068548 DOI: 10.4012/dmj.2018-085] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this study the mechanical behavior and water sorption (Ws) of experimental glass-ionomer-cements (GICs) with hydroxyapatite (HA) or calcium fluorapatite (CFA) prototype formulations were examined. Specimens from two experimental and one commercially available GIC were prepared in three protocols; (1) according to the manufacturer's instructions, (2) with coating and (3) with heat application. The specimens were stored in distilled water or artificial saliva at 37°C for 7- and 30-days. Flexural strength (FS), Vickers hardness (VHN) and Ws of GICs were evaluated. Experimental GICs showed higher FS values than commercial GIC (p<0.001). Higher FS and VHN values were observed when GICs were prepared according to manufacturer's recommendation. FS was affected only by GIC-type (η2=0.027), whereas VHN was affected by GIC-type (η2=0.331), treatment-protocols (η2=0.067), storage-medium (η2=0.100) and increased storage-duration (η2=0.317). The tested parameters did not significantly influence the Ws of all tested GICs (p>0.05). The GICs with HA or CFA formulations might represent a promising approach due to their FS, VHN and Ws characteristics.
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Affiliation(s)
- Zeynep Bilge Kutuk
- Department of Restorative Dentistry, School of Dentistry, Hacettepe University
| | - Uzay Koc Vural
- Department of Restorative Dentistry, School of Dentistry, Hacettepe University
| | - Filiz Yalcin Cakir
- Department of Restorative Dentistry, School of Dentistry, Hacettepe University
| | - Ivana Miletic
- Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb
| | - Sevil Gurgan
- Department of Restorative Dentistry, School of Dentistry, Hacettepe University
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Microstructure and Corrosion Resistance of PEO Coatings Formed on KBM10 Mg Alloy Pretreated with Nd(NO₃)₃. MATERIALS 2018; 11:ma11071062. [PMID: 29932445 PMCID: PMC6073551 DOI: 10.3390/ma11071062] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 06/19/2018] [Accepted: 06/20/2018] [Indexed: 11/17/2022]
Abstract
Plasma electrolytic oxidation (PEO) technique is one of the important methods used in the surface modification of magnesium alloys. In this paper, the ceramic coatings on pretreated KBM10 magnesium alloy with Nd(NO3)3 solution were prepared by PEO. The effects of Nd(NO3)3 solution concentration on the microstructure and corrosion resistance of PEO coatings on magnesium alloys were investigated by means of scanning electron microscopy (SEM), X-ray diffractometer (XRD), and electrochemical workstation. It was found that the surface of the coatings was porous after PEO, and element Nd could be deposited on the surface of the coatings by pretreatment and existed in the PEO coatings. The coating formed at Nd(NO3)3 solution concentration of 0.06 mol/L exhibited the best corrosion resistance among all the as-prepared coatings.
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Antibacterial glass-ionomer cement restorative materials: A critical review on the current status of extended release formulations. J Control Release 2017; 262:317-328. [DOI: 10.1016/j.jconrel.2017.07.041] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 07/28/2017] [Accepted: 07/29/2017] [Indexed: 02/02/2023]
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