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Diniz AC, Bauer J, Veloso SDAR, Abreu-Pereira CA, Carvalho CN, Leitão TJ, Firoozmand LM, Maia-Filho EM. Effect of Bioactive Filler Addition on the Mechanical and Biological Properties of Resin-Modified Glass Ionomer. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1765. [PMID: 36902881 PMCID: PMC10004000 DOI: 10.3390/ma16051765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/05/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
The maintenance of affected dentin can promote the greater conservation of tooth structure. The development of materials that have properties capable of reducing the demineralizing potential and/or even helping in dental remineralization is important for conservative dentistry. This study aimed to evaluate, in vitro, the alkalizing potential, fluoride as well as calcium ion release ability, antimicrobial activity, and dentin remineralization properties of resin-modified glass ionomer cement (RMGIC) incorporated with a bioactive filler (niobium phosphate (NbG) and bioglass (45S5)). The study samples were grouped into RMGIC, NbG, and 45S5. The materials' alkalizing potential, ability to release calcium as well as fluoride ions, and antimicrobial properties concerning Streptococcus mutans UA159 biofilms were analyzed. The remineralization potential was evaluated using the Knoop microhardness test, which was performed at different depths. The alkalizing and fluoride release potential was higher for the 45S5 group (p < 0.001) over time. An increase in the microhardness of demineralized dentin was observed in the 45S5 and NbG groups (p < 0.001). No differences in biofilm formation were observed between the bioactive materials, although 45S5 exhibited lower biofilm acidogenicity at different time points (p < 0.001) and greater calcium ion release in the microbial environment. A resin-modified glass ionomer cement enriched with bioactive glasses, particularly 45S5, is a promising alternative for the treatment of demineralized dentin.
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Affiliation(s)
- Ana Carolina Diniz
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), São Luis 65080-805, MA, Brazil
| | - José Bauer
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), São Luis 65080-805, MA, Brazil
| | | | - César Augusto Abreu-Pereira
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), São Luis 65080-805, MA, Brazil
| | - Ceci Nunes Carvalho
- Department of Postgraduate Program in Dentistry, CEUMA University, São Luis 65075-120, MA, Brazil
| | - Tarcísio Jorge Leitão
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), São Luis 65080-805, MA, Brazil
| | - Leily Macedo Firoozmand
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), São Luis 65080-805, MA, Brazil
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Cold plasma enamel surface treatment to increase fluoride varnish uptake. Sci Rep 2022; 12:4657. [PMID: 35304509 PMCID: PMC8933491 DOI: 10.1038/s41598-022-08069-4] [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: 08/24/2021] [Accepted: 02/28/2022] [Indexed: 11/21/2022] Open
Abstract
Among the available methods of enamel strengthening, fluoride varnish (FV) treatment has relatively better results. On the other hand, cold plasma technology has shown promising capacities in sterilizing the environment, surface modification, and improving adhesion. Accordingly, this study aimed to increase the adhesion of FV to the enamel surface to prolong the enamel interaction with FV with subsequently increased fluoride uptake by enamel. Emphasizing that the change in adhesion is evidence-based and has not been explicitly measured. For this purpose, we randomly divided twenty bovine teeth into two groups A (consisting of four teeth) and B (composed of four subgroups, each containing four teeth). Samples of group A and one specimen of each subset B investigated the effect of using Helium-DBD (He-DBDJ), Argon (ArJ), and Air-DBD jet on the enamel surface. Other B specimens are devoted to studying the release of FV fluoride ions from processed enamel. Two diagnostic techniques, scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS), have been utilized to examine the samples' surface morphology and chemical analysis, respectively. Finally, the release of fluoride ions into distilled water was measured by an ion-selective electrode (ISE). SEM images showed that ArJ and Air-DBD significantly damaged enamel hexagonal structures, whereas, in the case of He-DBDJ, the hexagonal structures have only altered from convex to concave. EDX indicated an increase in calcium to phosphorus ratio and the amount of fluoride and sodium uptake on the enamel surface layer in the group processed with He-DBDJ plasma. The latter helps restore the damaged parts of the enamel. Analysis of fluoride released from the FV did not show a significant change owing to plasma processing (P ≤ 0.112). The combination of cold plasma and fluoride varnish treatment on the enamel surface might be considered as a more promising approach to increasing enamel resistance to tooth decay.
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Effect of Simultaneous Sintering of Bioglass to a Zirconia Core on Properties and Bond Strength. MATERIALS 2021; 14:ma14237107. [PMID: 34885262 PMCID: PMC8658472 DOI: 10.3390/ma14237107] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/05/2021] [Accepted: 11/08/2021] [Indexed: 01/23/2023]
Abstract
This study aimed to assess bioglass sintering to a zirconia core on surface properties and bonding strength to resin cement. Zirconia specimens were divided into four groups: G I: sintered; G II: bioglass modified zirconia (a bioglass slurry was sintered with zirconia at 1550 °C); G III: sandblasted using 50 μm Al2O3 particles; and G IV: Z-prime plus application. Surface morphology and chemical analysis were studied using a scanning electron microscope and energy-dispersive spectroscopy. Surface roughness was evaluated using a profilometer. Surface hardness was measured using an indentation tester. For the microshear bond strength test, resin cement cylinders were bonded to a zirconia surface. Half of the specimens were tested after 24 h; the other half were thermocycled (5-55 °C) for 1000 cycles. A shearing load was applied at a crosshead speed of 0.5 mm/min on a universal testing machine. Data were analyzed with ANOVA using SPSS software at (p < 0.05). Results: tThe mean surface roughness of G II was significantly higher than G I and G III. The microhardness of G II was significantly lower than all groups. For bond strength, there was no significant difference between groups II, III, and IV after thermocycling. Conclusions: Bioactive glass can increase the bond strength of zirconia to resin cement, and is comparable to sandblasting and Z-prime bonding agents.
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Nyland BP, Pereira CP, Soares P, da Luz Weiss DS, Mikos WL, Brancher JA, Vieira S, Freire A. Enamel erosion control by strontium-containing TiO 2- and/or MgO-doped phosphate bioactive glass. Clin Oral Investig 2021; 26:1915-1925. [PMID: 34505917 DOI: 10.1007/s00784-021-04168-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 08/24/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To evaluate the effect of strontium-containing titanium- and/or magnesium-doped phosphate bioactive glass on the control of dental erosion. MATERIALS AND METHODS Fifty fragments of human enamel were divided into five groups: negative control, 45S5 bioglass, strontium-containing Ti-doped phosphate bioactive glass (PBG-Ti), strontium-containing Mg-doped phosphate bioactive glass (PBG-Mg), and strontium-containing Ti- and Mg-doped phosphate bioactive glass (PBG-TiMg). The specimens underwent cycles of erosive challenge twice daily for 5 days with 1 mL of citric acid for 2 min followed by 1 mL of the suspension with bioactive substances for 3 min. After the cycles, profilometry, roughness and microhardness testing, and scanning electron microscopy (SEM) were performed. The following statistical tests were used: one-way ANOVA (profile, roughness, and surface microhardness (%VMS) data variation), Tukey's HSD (%VMS), Games-Howell test (profilometry), Student's t test (roughness), and Pearson's correlation between the variables. RESULTS The lower loss of enamel surface and lower %VMS was observed in the PBG-Mg and PBG-TiMg groups, and only the PBG-Mg group showed similar roughness between baseline and eroded areas (p > 0.05). On SEM micrographs, PBG-Ti and PBG-Mg groups showed lower apparent demineralization. CONCLUSION All bioactive materials protected the enamel against erosion. However, strontium-containing phosphate bioactive glasses showed lower enamel loss, and the presence of Mg in these bioactive glasses provided a greater protective effect. CLINICAL RELEVANCE Experimental strontium-containing phosphate bioactive glasses are effective in controlling enamel erosion. The results obtained in this study will guide the development of new dental products.
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Affiliation(s)
| | | | - Paulo Soares
- Polytechnic School, Pontifícia Universidade Católica Do Paraná, Curitiba, Brasil
| | | | - Walter Luís Mikos
- Mechanical Engineering Department, Universidade Tecnológica Federal Do Paraná, Curitiba, Brasil
| | - João Armando Brancher
- School of Life Sciences, Pontifícia Universidade Católica Do Paraná, Curitiba, Brasil
| | - Sérgio Vieira
- School of Life Sciences, Pontifícia Universidade Católica Do Paraná, Curitiba, Brasil
| | - Andrea Freire
- School of Life Sciences, Pontifícia Universidade Católica Do Paraná, Curitiba, Brasil. .,School of Dentistry- FAODO, Universidade Federal de Mato Grosso Do Sul, Av. Costa e Silva, S/N, Universitário, Campo Grande, MS, 79070-900, Brasil.
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Jungbauer G, Moser D, Müller S, Pfister W, Sculean A, Eick S. The Antimicrobial Effect of Cold Atmospheric Plasma against Dental Pathogens-A Systematic Review of In-Vitro Studies. Antibiotics (Basel) 2021; 10:211. [PMID: 33672690 PMCID: PMC7924351 DOI: 10.3390/antibiotics10020211] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/16/2021] [Accepted: 02/18/2021] [Indexed: 12/14/2022] Open
Abstract
Interest in the application of cold atmospheric plasma (CAP) in the medical field has been increasing. Indications in dentistry are surface modifications and antimicrobial interventions. The antimicrobial effect of CAP is mainly attributed to the generation of reactive oxygen and reactive nitrogen species. The aim of this article is to systematically review the available evidence from in-vitro studies on the antimicrobial effect of CAP on dental pathogens. A database search was performed (PubMed, Embase, Scopus). Data concerning the device parameters, experimental set-ups and microbial cultivation were extracted. The quality of the studies was evaluated using a newly designed assessment tool. 55 studies were included (quality score 31-92%). The reduction factors varied strongly among the publications although clusters could be identified between groups of set pathogen, working gases, and treatment time intervals. A time-dependent increase of the antimicrobial effect was observed throughout the studies. CAP may be a promising alternative for antimicrobial treatment in a clinically feasible application time. The introduced standardized protocol is able to compare the outcome and quality of in-vitro studies. Further studies, including multi-species biofilm models, are needed to specify the application parameters of CAP before CAP should be tested in randomized clinical trials.
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Affiliation(s)
- Gert Jungbauer
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland; (D.M.); (A.S.); (S.E.)
| | - Dominick Moser
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland; (D.M.); (A.S.); (S.E.)
| | - Steffen Müller
- Department of Cranio-Maxillofacial Surgery, Hospital of the University of Regensburg, 93053 Regensburg, Germany;
| | - Wolfgang Pfister
- Department of Hospital Hygiene, Sophien- und Hufeland-Klinikum Weimar, 99425 Weimar, Germany;
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland; (D.M.); (A.S.); (S.E.)
| | - Sigrun Eick
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland; (D.M.); (A.S.); (S.E.)
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6
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Changes in enamel after bleaching pre-treatment with non-thermal atmospheric plasma. CLINICAL PLASMA MEDICINE 2020. [DOI: 10.1016/j.cpme.2020.100106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kermanshah H, Saeedi R, Ahmadi E, Ranjbar Omrani L. Efficacy of cavity liners with/without atmospheric cold helium plasma jet for dentin remineralization. Biomater Investig Dent 2020; 7:120-125. [PMID: 32939456 PMCID: PMC7470099 DOI: 10.1080/26415275.2020.1803074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Aim: This study aimed to assess the efficacy of cavity liners with/without the atmospheric cold plasma jet (ACPJ) for dentin remineralization.
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Affiliation(s)
- Hamid Kermanshah
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran.,Restorative Dentistry Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Saeedi
- School of Dentistry, Shahid Sadoughi University of Medical Sciences, Tehran, Iran
| | - Elham Ahmadi
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran.,Restorative Dentistry Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Ladan Ranjbar Omrani
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran.,Restorative Dentistry Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
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Mocquot C, Attik N, Pradelle-Plasse N, Grosgogeat B, Colon P. Bioactivity assessment of bioactive glasses for dental applications: A critical review. Dent Mater 2020; 36:1116-1143. [PMID: 32605848 DOI: 10.1016/j.dental.2020.03.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 03/19/2020] [Accepted: 03/19/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE In the context of minimally invasive dentistry and tissue conservation, bioactive products are valuable. The aim of this review was to identify, clarify, and classify the methodologies used to quantify the bioactive glasses bioactivity. METHODS Specific search strategies were performed in electronic databases: PubMed, Embase, Cochrane Library, and Scopus. Papers were selected after a review of their title, abstract, and full text. The following data were then examined for final selection: BAG investigated, objectives, criteria, methods, and outcomes. RESULTS Sixty-one studies published from 2001 to 2019, were included. The bioactivity of BAG can be evaluated in vitro in contact with solutions, enamel, dentin, or cells. Other studies have conducted in vivo evaluation by BAG contact with dentin and dental pulp. Studies have used various analysis techniques: evaluation of apatite with or without characterization or assessment of mechanical properties. Reprecipitation mechanisms and pulp cell stimulation are treated together through the term 'bioactivity'. SIGNIFICANCE Based on these results, we suggested a classification of methodologies for a better understanding of the bioactive properties of BAG. According to all in vitro studies, BAG appear to be bioactive materials. No consensus has been reached on the results of in vivo studies, and no comparison has been conducted between protocols to assess the bioactivity of other bioactive competitor products.
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Affiliation(s)
- Caroline Mocquot
- Université de Lyon - Université Claude Bernard Lyon 1, UMR CNRS 5615, Laboratoire des Multimatériaux et Interfaces, 69372 Lyon Cedex 08, France; Assistance Publique-Hôpitaux de Paris, Hôpital Rothschild, Service d'Odontologie, Université de Paris, Faculté dentaire, France.
| | - Nina Attik
- Université de Lyon - Université Claude Bernard Lyon 1, UMR CNRS 5615, Laboratoire des Multimatériaux et Interfaces, 69372 Lyon Cedex 08, France; Université de Lyon, Université Claude Bernard Lyon 1, Faculté d'Odontologie, 69008 Lyon, France.
| | - Nelly Pradelle-Plasse
- Université de Lyon - Université Claude Bernard Lyon 1, UMR CNRS 5615, Laboratoire des Multimatériaux et Interfaces, 69372 Lyon Cedex 08, France; Assistance Publique-Hôpitaux de Paris, Hôpital Rothschild, Service d'Odontologie, Université de Paris, Faculté dentaire, France
| | - Brigitte Grosgogeat
- Université de Lyon - Université Claude Bernard Lyon 1, UMR CNRS 5615, Laboratoire des Multimatériaux et Interfaces, 69372 Lyon Cedex 08, France; Université de Lyon, Université Claude Bernard Lyon 1, Faculté d'Odontologie, 69008 Lyon, France; Hospices civils de Lyon, Service d'Odontologie, 69007 Lyon, France
| | - Pierre Colon
- Université de Lyon - Université Claude Bernard Lyon 1, UMR CNRS 5615, Laboratoire des Multimatériaux et Interfaces, 69372 Lyon Cedex 08, France; Assistance Publique-Hôpitaux de Paris, Hôpital Rothschild, Service d'Odontologie, Université de Paris, Faculté dentaire, France
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Ghadirian H, Geramy A, Shallal W, Heidari S, Noshiri N, Keshvad MA. The Effect of Remineralizing Agents With/Without CO 2 Laser Irradiation on Structural and Mechanical Properties of Enamel and its Shear Bond Strength to Orthodontic Brackets. J Lasers Med Sci 2020; 11:144-152. [PMID: 32273955 DOI: 10.34172/jlms.2020.25] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Introduction: Remineralizing agents may be used for the treatment of white spot lesions (WSLs) prior to bracket bonding. However, some concerns exist regarding their possible interference with the etching and bonding process, negatively affecting the bond strength. This study aimed to assess the effect of two remineralizing agents with/without CO2 laser irradiation on the mechanical properties and shear bond strength (SBS) of demineralized enamel to the orthodontic bracket. Methods: This study evaluated 60 premolar teeth in 6 groups (n=10) as follows: (I) sound enamel, (II) demineralized enamel, (III) Nupro remineralizing agent (N), (IV) Nupro and CO2 laser (N/L), (V) Teethmate remineralizing agent (T), and (VI) Teethmate and CO2 laser (T/L). The remineralizing agents were applied to the enamel surfaces after their immersion in a demineralizing solution for 5 days. In groups IV and VI, the CO2 laser with a 10.6 μm wavelength, 10 ms pulse duration, a 50 Hz repetition rate, 0.3 mm beam diameter and 0.7 W power was irradiated after applying the remineralizing agents. Brackets were bonded to the enamel surfaces and SBS was measured by a universal testing machine. For the assessment of enamel microhardness, 20 sections of molar teeth were divided into 4 groups (n=5; N, N/L, T, T/L) and their microhardness was measured before demineralization, after demineralization and after remineralization. X-ray diffraction (XRD) analysis, field-emission scanning electron microscopy (FESEM) and energy-dispersive spectrometry (EDS) were carried out to assess the formation of hydroxyapatite. The atomic percentages of the C, O, P, Ca, Na, Si, F and Ca/P ratio were determined by EDS analysis. Results: The SBS significantly decreased in group II (P<0.001). There was no significant difference among the groups I, III, IV, V and VI (P<0.05). This finding was similar to the microhardness results, which showed an increase in microhardness after remineralization (P<0.05), with no difference among the remineralizing agents. The Ca/P ratio was the highest in the Nupro group and the lowest in the demineralized group. Conclusion: Remineralizing agents can significantly improve the microhardness and structural properties of demineralized enamel to a level similar to that of sound enamel with no adverse effect on SBS to orthodontic brackets.
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Affiliation(s)
- Hannaneh Ghadirian
- Department of Orthodontics, School of Dentistry, Tehran University of Medical sciences, Tehran, Iran
| | - Allahyar Geramy
- Department of Orthodontics, School of Dentistry, Tehran University of Medical sciences, Tehran, Iran
| | | | - Soolmaz Heidari
- Department of Operative Dentistry, Dental Caries Prevention Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Nooshin Noshiri
- Medical Image Processing Laboratory (MIPL), Department of Technology and Engineering, Alzahra University, Tehran, Iran
| | - Mohammad Ali Keshvad
- Department of Orthodontics, School of Dentistry, Tehran University of Medical sciences, Tehran, Iran
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10
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Mechanisms of Bioactive Glass on Caries Management: A Review. MATERIALS 2019; 12:ma12244183. [PMID: 31842454 PMCID: PMC6947261 DOI: 10.3390/ma12244183] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/02/2019] [Accepted: 12/10/2019] [Indexed: 12/13/2022]
Abstract
This review investigates the mechanisms of bioactive glass on the management of dental caries. Four databases (PubMed, Web of Science, EMBASE (via Ovid), Medline (via Ovid)) were systematically searched using broad keywords and terms to identify the literature pertaining to the management of dental caries using "bioactive glass". Titles and abstracts were scrutinized to determine the need for full-text screening. Data were extracted from the included articles regarding the mechanisms of bioactive glass on dental caries management, including the aspect of remineralizing effect on enamel and dentine caries, and antimicrobial effect on cariogenic bacteria. After removal of duplicates, 1992 articles were identified for screening of the titles and abstracts. The full texts of 49 publications were scrutinized and 23 were finally included in this review. Four articles focused on the antimicrobial effect of bioactive glass. Twelve papers discussed the effect of bioactive glass on demineralized enamel, while 9 articles investigated the effect of bioactive glass on demineralized dentine. In conclusion, bioactive glass can remineralize caries and form apatite on the surface of enamel and dentine. In addition, bioactive glass has an antibacterial effect on cariogenic bacteria of which may help to prevent and arrest dental caries.
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Sleibi A, Tappuni AR, Karpukhina NG, Hill RG, Baysan A. A comparative evaluation of ion release characteristics of three different dental varnishes containing fluoride either with CPP-ACP or bioactive glass. Dent Mater 2019; 35:1695-1705. [PMID: 31563405 DOI: 10.1016/j.dental.2019.08.113] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 08/13/2019] [Accepted: 08/31/2019] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To compare ion release characteristics of three different dental varnishes either containing CPP-ACP and fluoride (CPP-ACPF, MI Varnish GC, Japan), bioactive glass and fluoride (BGAF, Dentsply Sirona USA) or fluoride alone (NUPRO White, Dentsply Sirona USA) using fluoride-Ion Selective Electrode (F-ISE), Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES), X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), 19F and 31P Magic Angle Spinning-Nuclear Magnetic Resonance (MAS-NMR). METHODS A thin layer (0.0674±0.0005g) of each varnish (20×25mm in area) was spread on a roughened glass slide (n=7). They were separately immersed in 10ml Tris buffer (0.06M, pH=7.30), and changed after 1, 2, 4, 6, 24 and 48h. Fluoride-ion concentration at each time using the F-ISE, whilst calcium and phosphate release were investigated using ICP-OES. XRD, FTIR. MAS-NMR analyses were also performed before and after immersion. RESULTS The cumulative F-ion release was significantly higher in CPP-ACPF (1.113mmol/g)>BGAF(0.638)>F(0.112) (p<0.001). The cumulative calcium and phosphorus were higher in the CPP-ACPF (0.137mmol/g, 0.119) than BGAF (0.067, 0.015) (p<0.001) respectively. The XRD and 19F MAS-NMR confirmed the presence of NaF peaks in all cases before immersion. There were less prominent signal and appearance of fluorapatite crystals after immersion. 19F MAS-NMR revealed CaF2 formation after immersion in both CPP-ACPF and BGAF. 31P MAS-NMR showed phosphate signals in both CPP-ACPF and BGAF before immersion. FTIR failed to show any signs of apatite formation. SIGNIFICANCE Both CPP-ACP and bioactive glass enhanced ion release without compromising the bioavailability of fluoride. The CPP-ACPF varnish had the most promising ion release.
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Affiliation(s)
- Ahmed Sleibi
- Institute of Dentistry, Queen Mary University of London, Turner Street, EI 2AD, London, United Kingdom; College of Dentistry, Mustansiriyah University, Baghdad, Iraq.
| | - A R Tappuni
- Institute of Dentistry, Queen Mary University of London, Turner Street, EI 2AD, London, United Kingdom
| | - Natalia G Karpukhina
- Dental Physical Sciences Unit, Institute of Dentistry, Queen Mary University of London, Mile End Road, EI 4NS, London, United Kingdom
| | - Robert G Hill
- Dental Physical Sciences Unit, Institute of Dentistry, Queen Mary University of London, Mile End Road, EI 4NS, London, United Kingdom
| | - A Baysan
- Institute of Dentistry, Queen Mary University of London, Turner Street, EI 2AD, London, United Kingdom
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12
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Comparison of efficacy of dental varnish containing fluoride either with CPP-ACP or bioglass on root caries: Ex vivo study. J Dent 2018; 73:91-96. [DOI: 10.1016/j.jdent.2018.04.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 04/12/2018] [Indexed: 01/05/2023] Open
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13
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Sanavia C, Tatullo M, Bassignani J, Cotellessa S, Fantozzi G, Acito G, Iommiello A, Chiavistelli L, Iommiello A, Sabatini S, Nardi GM. Remineralization Strategies in Oral Hygiene: A Position Paper of Italian Society of Oral Hygiene Sciences-S.I.S.I.O. Working Group. Open Dent J 2017; 11:527-538. [PMID: 29238413 PMCID: PMC5712655 DOI: 10.2174/1874210601711010527] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 08/25/2017] [Accepted: 09/19/2017] [Indexed: 11/22/2022] Open
Abstract
Background/Objective: The clinical conditions that lead to an alteration of the enamel structure are numerous. The diet high in sugars and acidifying substances, psychological stress that triggers parafunctional behaviors, the reduced intake of fiber-rich foods or alkalizing substances, together with other factors, contribute to demineralization of the tooth enamel. Dental mineralizing products on the current market are distinguished according to the dosage form, the active ingredient, the release technology, clinical indications and patient choice. Currently, it is necessary to propose to oral health professionals a guide to orient themselves in this chaotic choice, in order to prefer the most effective product for their own clinical target. Methods: Italian Society of Oral Hygiene Sciences-S.I.S.I.O. is one of the leading scientific Italian societies representing those dental hygienists working with high-quality standards and in agreement with scientific evidence: in the last year, the SISIO working group has carried out a study focused on remineralizing agents in dentistry, in order to give an authoritative point of view to indicate a guideline in the decision process of the choice of a remineralizing agent. We will report the results pointed out from the last consensus meeting in 2017. Results: We have reported the good the bad and the ugly have been discussed in a critical discussion of such topic. Conclusion: The SISIO experience has been reported in this position paper with the aim to serve as a useful aid in the daily choice of the clinical steps to perform, when dental professionals need to treat demineralized teeth.
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Affiliation(s)
- Consuelo Sanavia
- Italian Society of Oral Hygiene Sciences-S.I.S.I.O. working group, Pisa, Italy
| | | | - Jessica Bassignani
- Italian Society of Oral Hygiene Sciences-S.I.S.I.O. working group, Pisa, Italy
| | - Silvia Cotellessa
- Italian Society of Oral Hygiene Sciences-S.I.S.I.O. working group, Pisa, Italy
| | - Giulia Fantozzi
- Italian Society of Oral Hygiene Sciences-S.I.S.I.O. working group, Pisa, Italy
| | - Giovanna Acito
- Italian Society of Oral Hygiene Sciences-S.I.S.I.O. working group, Pisa, Italy
| | - Alessia Iommiello
- Italian Society of Oral Hygiene Sciences-S.I.S.I.O. working group, Pisa, Italy
| | | | - Alessia Iommiello
- Italian Society of Oral Hygiene Sciences-S.I.S.I.O. working group, Pisa, Italy
| | - Silvia Sabatini
- Italian Society of Oral Hygiene Sciences-S.I.S.I.O. working group, Pisa, Italy
| | - Gianna Maria Nardi
- Italian Society of Oral Hygiene Sciences-S.I.S.I.O. working group, Pisa, Italy.,Department of Oral and Maxillofacial Science, University of Rome "Sapienza", Rome, Italy
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