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Chevitarese AB, Leite KLDF, Dutra PB, Pithon MM, Faria LCM, Ruellas ACDO. Effect of an aqueous 4% titanium tetrafluoride solution on preventing caries in orthodontic patients: a controlled clinical trial. Dental Press J Orthod 2023; 28:e2321304. [PMID: 37018831 PMCID: PMC10069748 DOI: 10.1590/2177-6709.28.1.e2321304.oar] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 08/31/2022] [Indexed: 04/07/2023] Open
Abstract
INTRODUCTION Titanium tetrafluoride (TiF4) is a fluoride compound that, when is applied over enamel, promotes a protection against demineralization through a titanium dioxide (TiO2) acid-resistant coat. OBJECTIVES This study sought to verify the hypothesis that a single application of 4% TiF4 increases the resistance of enamel to dental demineralization in orthodontic patients. MATERIALS AND METHODS This controlled clinical trial followed CONSORT guidelines and investigated the prevention of enamel demineralization, fluoride retention, and the presence of a Ti layer after TiF4 application on banded teeth exposed to clinical cariogenic biofilm. Forty premolars were divided into a control group (CG; n = 20) and a test group (TG; n = 20). Teeth from both groups received prophylaxis and orthodontic bands with a cariogenic locus. In the TG, all teeth additionally underwent aqueous 4% TiF4 solution application after prophylaxis before being banded. After one month, teeth from both groups were extracted and prepared to assess the microhardness, fluoride retention, and evaluation of the Ti coating over the enamel surface. All data were analyzed with a paired Student's t-test (p<0.05). RESULTS Enamel microhardness and fluoride uptake were higher in TG than in CG, while the Ti layer could be seen over TG teeth that received TiF4 application. CONCLUSION Under clinical circumstances, the 4% aqueous TiF4 solution was effective in preventing enamel mineral loss through increasing the enamel resistance to dental demineralization, enhancing its microhardness and fluoride uptake, and forming a Ti coat.
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Affiliation(s)
- Ana Beatriz Chevitarese
- Universidade Federal do Rio de Janeiro, Departamento de Ortodontia e Odontologia Pediátrica (Rio de Janeiro/RJ, Brazil)
| | - Karla Lorene de França Leite
- Universidade Federal do Rio de Janeiro, Departamento de Ortodontia e Odontologia Pediátrica (Rio de Janeiro/RJ, Brazil)
| | - Paulo Bechara Dutra
- Instituto de Química Analítica da Universidade Federal do Rio de Janeiro (Rio do Janeiro/RJ, Brazil)
| | - Matheus Melo Pithon
- Universidade Federal do Rio de Janeiro, Departamento de Ortodontia e Odontologia Pediátrica (Rio de Janeiro/RJ, Brazil)
- Universidade do Sudeste da Bahia, Departamento de Ortodontia (Jequié/BA, Brazil)
| | - Lucianne Cople Maia Faria
- Universidade Federal do Rio de Janeiro, Departamento de Ortodontia e Odontologia Pediátrica (Rio de Janeiro/RJ, Brazil)
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Silva CV, Mantilla TF, Engel Y, Tavares JP, Freitas PM, Rechmann P. The effect of CO 2 9.3 μm short-pulsed laser irradiation in enamel erosion reduction with and without fluoride applications-a randomized, controlled in vitro study. Lasers Med Sci 2020; 35:1213-1222. [PMID: 32030555 DOI: 10.1007/s10103-020-02979-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 01/31/2020] [Indexed: 10/25/2022]
Abstract
The aim of this in vitro study was to evaluate the protective effect of short-pulsed CO2 9.3 μm laser irradiation against erosion in human enamel without and combined with TiF4 and AmF/NaF/SnCl2 applications, respectively, as well as compared to the protective effect of these fluoride treatments alone. After polishing, ninety enamel samples (3 × 3mm) were used for 9 different treatment groups: 4% TiF4 gel (pH 1.5, 24,533 ppm F-); AmF/NaF/SnCl2 rinse (pH 4.5; 500 ppm F-, 800 ppm Sn2); CO2 laser (average power 0.58 W); CO2 laser (0.58 W) + TiF4; CO2 laser (0.58 W) + AmF/NaF/SnCl2; CO2 laser (0.69 W); CO2 laser (0.69 W) + TiF4; CO2 laser (0.69 W) + AmF/NaF/SnCl2; negative control (deionized water). TiF4 gel was brushed on only once before the first erosive cycling, while samples treated with AmF/NaF/SnCl2 were daily immersed in 5 ml of the solution before cycling. Laser treatment occurred with a CO2 laser (wavelength 9.3 μm, pulse repetition rate 100 Hz, pulse duration 14.6 μs/18 μs, average power 0.58 W/0.69 W, fluence 1.9 J/cm2/2.2 J/cm2, beam diameter 0.63 mm, irradiation time 10 s, air cooling). TiF4 was applied only once, while AmF/NaF/SnCl2 was applied once daily before the erosive challenge. Surface loss (in μm) was measured with optical profilometry immediately after treatment, and after 5 and 10 days of erosive cycling (0.5% citric acid, pH 2.3, 6 × 2 min/day). Additionally, scanning electron microscopy investigations were performed. All application measures resulted in loss of surface height immediately after treatment. After 5 days, significantly reduced surface loss was observed after applying laser irradiation (both power settings) followed by applications of TiF4 or AmF/NaF/SnCl2 solution (p < 0.05; 2-way ANOVA and Tukey test) compared to fluoride application alone. After 10 days, compared to after 5 days, a reduced tissue loss was observed in all groups treated with AmF/NaF/SnCl2 solution. This tissue gain occurred with the AmF/NaF/SnCl2 application alone and was significantly higher when the application was combined with the laser use (p < 0.05). Short-pulsed CO2 9.3 μm laser irradiation followed by additional application of AmF/NaF/SnCl2 solution significantly reduces the progression of dental enamel erosion in vitro.
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Affiliation(s)
- C V Silva
- Department of Restorative Dentistry, Faculdade de Odontologia, Universidade de São Paulo (USP), Av Prof. Lineu Prestes, 2227 - Cidade Universitária, São Paulo, SP, 05508-000, Brazil
| | - T F Mantilla
- Department of Restorative Dentistry, Faculdade de Odontologia, Universidade de São Paulo (USP), Av Prof. Lineu Prestes, 2227 - Cidade Universitária, São Paulo, SP, 05508-000, Brazil
| | - Y Engel
- Department of Restorative Dentistry, Faculdade de Odontologia, Universidade de São Paulo (USP), Av Prof. Lineu Prestes, 2227 - Cidade Universitária, São Paulo, SP, 05508-000, Brazil
| | - J P Tavares
- Department of Restorative Dentistry, Faculdade de Odontologia, Universidade de São Paulo (USP), Av Prof. Lineu Prestes, 2227 - Cidade Universitária, São Paulo, SP, 05508-000, Brazil
| | - P M Freitas
- Department of Restorative Dentistry, Faculdade de Odontologia, Universidade de São Paulo (USP), Av Prof. Lineu Prestes, 2227 - Cidade Universitária, São Paulo, SP, 05508-000, Brazil
| | - P Rechmann
- Department of Preventive and Restorative Dental Sciences, School of Dentistry, University of California at San Francisco, 707 Parnassus Avenue, San Francisco, CA, 94143, USA.
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Kawamura K, Kunimatsu Y, Nakano T, Hasegawa H, Arakawa H, Mukai Y. Anti-demineralization effect of desensitizer containing copolymer and sodium fluoride on root dentin - a transverse microradiographic study. ACTA BIOMATERIALIA ODONTOLOGICA SCANDINAVICA 2019; 5:38-43. [PMID: 30911589 PMCID: PMC6427710 DOI: 10.1080/23337931.2019.1591967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 03/04/2019] [Indexed: 11/25/2022]
Abstract
Objective: To evaluate anti-demineralization effects of dentin desensitizer containing sodium fluoride and methacrylate-co-p-styrene sulfonic acid (MS polymer) on root dentin using transverse microradiography (TMR). Material and methods: Twenty-four dentin specimens were divided into four groups: MSO (no fluoride), MSF (3000 ppm F), FJL (9000 ppm F), and Control. In MSO and MSF, each desensitizer was rubbed into the dentin surfaces for 10 s then left for 20 s. In FJL, paste containing 9000 ppm F was applied onto the surface for 30 s. All specimens, including the Controls, were rinsed with deionized water, dried and an area of their surface exposed to pH 5.0 acidic solution, refreshed every 24 h, for 4 days. Sections 300-µm-thick were assessed by TMR. Mineral profiles and integrated mineral loss (IML) of lesions were analyzed by dedicated software. IML was analyzed with one-way ANOVA and Tukey’s test. Results: MSF and FJL specimens showed high mineral volume % at the surface and in lesions, and significantly lower IML than the other groups (p < .05). Conclusion: Dentin desensitizer containing 3000 ppm fluoride and MS polymer has the same anti-demineralization effect as does a fluoride paste containing 9000 ppm F.
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Affiliation(s)
- Kazuaki Kawamura
- Division of Oral Health, Department of Oral Science, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Japan
| | - Yuichi Kunimatsu
- Division of Restorative Dentistry, Department of Oral Interdisciplinary Medicine, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Japan
| | - Takafumi Nakano
- Division of Oral Health, Department of Oral Science, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Japan
| | - Haruhiko Hasegawa
- Division of Restorative Dentistry, Department of Oral Interdisciplinary Medicine, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Japan
| | - Hirohisa Arakawa
- Division of Oral Health, Department of Oral Science, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Japan
| | - Yoshiharu Mukai
- Division of Restorative Dentistry, Department of Oral Interdisciplinary Medicine, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Japan
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Effect of titanium tetrafluoride addition on the physicochemical and antibacterial properties of Biodentine as intraorfice barrier. Dent Mater 2018; 35:185-193. [PMID: 30509482 DOI: 10.1016/j.dental.2018.11.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 07/05/2018] [Accepted: 11/14/2018] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To evaluate the influence of titanium tetrafluoride (TiF4) incorporation on the physicochemical and antibacterial properties of Biodentine (BD; Septodont, Saint Maur des Faussés, France) as an intraorfice barrier material. METHODS Three different proportions of TiF4 powder were used with BD; 1wt%, 2wt%, and 3wt%; respectively. BD without TiF4 addition was used as the control group. The setting time (ST) was determined using Gillmore needle apparatus. Diametral tensile strength (DTS) and fracture resistance were measured in a universal testing machine. Solubility was assessed using mass variation after 7days water storage. The hardness test was conducted using Vickers microhardness tester. The antibacterial activity was assessed using direct contact test against Enterococcus faecalis. Radiopacity was assessed and expressed in thickness of aluminum. Surface topography and elemental composition of modified BD were also assessed. The pH of soaking water was measured up to 168h. Data of tested properties were analyzed using one-way analysis of variance, the paired t-test, two-way repeated measures analysis of variance, and Tukey post hoc tests (P<0.05). RESULTS BD-incorporating 2wt% TiF4 revealed the highest surface microhardness, DTS, and fracture resistance compared with the unmodified group (P<0.001). Higher concentrations of TiF4 (3wt%) compromised the solubility and prolonged the ST of BD (P<0.05). Bacterial growth of BD-incorporating TiF4 was significantly reduced when compared with the control group (P<0.05). The tested materials induced alkalization of the soaking water that decreased with time. SIGNIFICANCE Biodentine-incorporating TiF4 (1wt% and 2wt%) is a promising intraorfice barrier material with enhanced physicochemical and antibacterial properties.
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Effect of TiF4 varnish on microbiological changes and caries prevention: in situ and in vivo models. Clin Oral Investig 2018; 23:2583-2591. [DOI: 10.1007/s00784-018-2681-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 10/01/2018] [Indexed: 11/26/2022]
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Bridi EC, Amaral FLBD, França FMG, Turssi CP, Basting RT. Influence of dentin pretreatment with 2.5% titanium tetrafluoride on inhibiting caries at the tooth-restoration interface in situ. Arch Oral Biol 2018; 86:51-57. [DOI: 10.1016/j.archoralbio.2017.10.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 09/29/2017] [Accepted: 10/26/2017] [Indexed: 01/13/2023]
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Inhibition of demineralization around the enamel-dentin/restoration interface after dentin pretreatment with TiF4 and self-etching adhesive systems. Clin Oral Investig 2015; 20:857-63. [DOI: 10.1007/s00784-015-1573-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 08/18/2015] [Indexed: 11/26/2022]
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Ates M, Akdeniz BG, Sen BH. The effect of calcium chelating or binding agents on Candida albicans. ACTA ACUST UNITED AC 2005; 100:626-30. [PMID: 16243251 DOI: 10.1016/j.tripleo.2005.03.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2004] [Revised: 03/04/2005] [Accepted: 03/10/2005] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate antifungal effects of calcium-chelating or -binding agents on Candida albicans comparing with conventional antifungal agents. STUDY DESIGN Two clinical oral isolates and 1 standard strain of C albicans were included in the study. Test solutions were ethylenediamine-tetraacetic acid (EDTA), ethyleneglycol-tetraacetic acid (EGTA), sodium fluoride (NaF), titanium tetrafluoride (TiF4), nystatin, and ketoconazole. Minimum inhibitory and fungicidal concentrations of the solutions were determined. The results were analyzed statistically using Friedman's nonparametric 2-way ANOVA and Mann-Whitney U tests. RESULTS All isolates demonstrated similar susceptibility patterns (P>.05). Except ketoconazole, EDTA had the highest antifungal and fungicidal activity, followed by TiF4. EGTA and NaF were the weakest agents against C albicans among all test solutions. CONCLUSION EDTA and TiF4 may be recommended as an alternative irrigating solution particularly in persistent root canal infections and in root canals of patients having a high incidence of oral candidosis.
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Affiliation(s)
- Mustafa Ates
- Department of Biology, Division of Basic and Industrial Microbiology, School of Science, Ege University, Izmir, Turkey
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Glauche CE, de Freitas PM, Vieira ND, Marques JLL. Qualitative microanalysis of ions and ultrastructural changes in dentin exposed to laser irradiation and to metal salts solution. Lasers Surg Med 2005; 36:334-9. [PMID: 15786483 DOI: 10.1002/lsm.20153] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND OBJECTIVES This study evaluated the ultrastructural changes in dentin after treatment with the Nd:YAG laser and/or metal salt solutions and verified the presence of Sn++, Sr++, and F- in dentin structure. STUDY DESIGNS/MATERIALS AND METHODS Sixty dentin disks were randomly divided into groups (n = 10): (I) control (no treatment), (II) Nd:YAG (1.5 W, 100 mJ, 15 Hz, 125 J/cm2), (III) 10% SnF2 aqueous solution for 30 minutes, (IV) Nd:YAG+10% SnF2 aqueous solution for 30 minutes, (V) 10% SrCl2 toothpaste for 30 minutes, (VI) Nd:YAG+10% SrCl2 toothpaste for 30 minutes. Then, all samples were prepared for scanning electron microscopy (SEM) and the samples from Groups I to IV for the energy dispersive X-ray microanalysis (EDX). RESULTS SEM evaluation revealed occluded dentinal tubules and a dentin surface altered by the laser irradiation. The EDX microanalysis revealed Sn++ at a depth of 250 microm in Group IV and not deeper than 100 microm in Group III. In Group V, Sr++ was not deeper than 50 microm, but it could be detected at a depth of 500 microm in Group VI. F- was found only in Group IV. CONCLUSIONS Ultrastructural changes caused by laser irradiation can increase dentin uptake of Sn++, Sr++, and F-.
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Affiliation(s)
- Carlos E Glauche
- Professional Master Course of Lasers in Dentistry, Institute of Energy and Nuclear Research, IPEN, São Paulo, SP 05508-900, Brazil
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White DJ. The application of in vitro models to research on demineralization and remineralization of the teeth. Adv Dent Res 1995; 9:175-93; discussion 194-7. [PMID: 8615942 DOI: 10.1177/08959374950090030101] [Citation(s) in RCA: 102] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Progress in in vivo and in situ experimentation has led many researchers to speculate as to the relevance and importance of in vitro testing protocols in caries research. A Medline/Biosis search for the present review revealed well over 300 citations (since 1989) documenting in vitro tests associated with caries research on mineralization and fluoride reactivity. The present survey documents these recent applications of in vitro test methods in both mechanistic and 'profile' caries research. In mechanistic studies, in vitro protocols over the past five years have made possible detailed studies of dynamics occurring in mineral loss and gain from dental tissues and the reaction dynamics associated with fluoride anticaries activity. Similarly, in profile applications, in vitro protocols make possible the inexpensive and rapid--yet sensitive--assessment of F anticaries efficacy within fluoride-active systems, and these tests represent a key component of product activity confirmation. The ability to carry out single variable experiments under highly controlled conditions remains a key advantage in in vitro experimentation, and will likely drive even further utilization, as advances continue in physical-chemical and analytical techniques for substrate analysis in these protocols. Despite their advantages in vitro testing protocols have significant limitations, most particularly related to their inability to simulate the complex biological processes involved in caries.
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Affiliation(s)
- D J White
- The Procter & Gamble Company, Mason, Ohio 45040-8006, USA
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