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Effect of thermocycling-induced stress on properties of orthodontic NiTi wires. J Dent Sci 2022; 17:1788-1795. [DOI: 10.1016/j.jds.2022.07.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 07/22/2022] [Indexed: 11/21/2022] Open
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Belasic TZ, Pejova B, Curkovic HO, Kamenar E, Cetenovic B, Spalj S. Influence of intraoral application of antiseptics and fluorides during orthodontic treatment on corrosion and mechanical characteristics of nickel-titanium alloy in orthodontic appliances. Angle Orthod 2021; 91:528-537. [PMID: 33566077 DOI: 10.2319/052620-480.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 11/01/2020] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES To explore whether the commercial agents recommended for controlling dental biofilm formation had a significant effect in vivo on mechanical and corrosion properties of nickel-titanium (NiTi) alloy. MATERIALS AND METHODS NiTi archwires (dimensions 0.508 × 0.508 mm) were collected from 36 orthodontic patients aged 13-42 years after a 3-month intraoral exposure. Three experimental groups were formed: (1) subjects conducting regular oral hygiene, (2) subjects who used fluorides for intensive prophylaxis for the first month, and (3) subjects who used chlorhexidine in the same manner. Corrosion behavior, surface characteristics, stiffness, hardness, and friction were analyzed. RESULTS Exposure to intraoral conditions significantly reduced the stiffness and hardness of the NiTi alloy (P ≤ .015). Fluoride tended to reduce stiffness and hardness more than did saliva or antiseptic, but not significantly. Roughness and friction were not significantly influenced by oral exposure. Intraoral aging predominantly produced general corrosion independent of the adjuvant prophylactic agent, although localized corrosion may also have occurred. CONCLUSIONS Fluorides and the antiseptic chlorhexidine do not increase corrosion more than saliva itself, nor do they further modify the mechanical properties of the NiTi alloy.
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Klabunde R, Grünheid T. Dynamic force decay evaluation of latex and non-latex orthodontic elastics. J Orofac Orthop 2021; 83:318-324. [PMID: 34185101 DOI: 10.1007/s00056-021-00319-w] [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: 08/18/2020] [Accepted: 05/06/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE To evaluate the force decay over time of latex and non-latex orthodontic elastics subjected to either static or dynamic stretching under simulated intraoral conditions. MATERIALS AND METHODS Four types of elastics (1/4-inch 4.5 ounces and 1/4-inch 6.5 ounces, each latex and non-latex) were subjected to either static stretching to 3 times internal diameter (ID) or dynamic stretching from 3 to 4.5 times ID in artificial saliva at 37 °C for 24 h. Forces generated by the elastics were measured at 0, 1, 2, 4, 8, 12, and 24 h. Differences among elastic types, time points, and between stretching regimens were tested for statistical significance (P < 0.05). RESULTS Both stretching regimens caused rapid force decay in all elastic types, which was significantly higher in the non-latex elastics than in the latex elastics. In contrast, there were no differences between elastic types made of the same material. With both stretching regimens, the force decay was significant only after the first hour for the latex elastics, whereas it remained significant up to 24 h for the non-latex elastics. All elastic types generated significantly lower forces after dynamic stretching than after static stretching with 70.2, 68.8, and 66.1% of the initial force remaining after 4, 8, and 24 h for latex elastics and 48.0, 40.8, and 29.5% for non-latex elastics. CONCLUSION Latex elastics retained significantly more force over time than their non-latex equivalents. Because of the higher force decay in a dynamic environment, it is important that non-latex elastics be changed more frequently.
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Affiliation(s)
- Robert Klabunde
- Division of Orthodontics, School of Dentistry, University of Minnesota, 6-320 Moos Health Science Tower, 515 Delaware Street S.E., 55455, Minneapolis, MN, USA
| | - Thorsten Grünheid
- Division of Orthodontics, School of Dentistry, University of Minnesota, 6-320 Moos Health Science Tower, 515 Delaware Street S.E., 55455, Minneapolis, MN, USA.
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Sapata DM, Ramos AL, Sábio S, Normando D, Pascotto RC. Evaluation of biofilm accumulation on and deactivation force of orthodontic Ni-Ti archwires before and after exposure to an oral medium: A prospective clinical study. J Dent Res Dent Clin Dent Prospects 2020; 14:41-47. [PMID: 32454957 PMCID: PMC7235699 DOI: 10.34172/joddd.2020.006] [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] [Indexed: 11/24/2022] Open
Abstract
Background. This in vitro study aimed to evaluate biofilm accumulation on and deactivation force of orthodontic nickeltitanium (NiTi) archwires before and after exposure to an oral medium.
Methods. Four commercial brands of orthodontic NiTi 0.016" archwires were examined before and after exposure to the oral medium for 4 weeks. Six archwire segments, 30 mm in length, from each manufacturer were tested in a device with four selfligating brackets, channel 0.022", adapted to a universal test machine to evaluate the deactivation force between 0.5 and 3 mm of deflection. The presence of biofilm on the archwire surfaces was evaluated by scanning electron microscopy, before and after exposure to the oral medium. The Wilcoxon and kappa tests were applied to the biofilm scores, three-way ANOVA for repeated measures (Bonferroni post-test), and linear regression between biofilm and deactivation force.
Results. The exposure to the oral medium promoted moderate to severe presence of debris on the archwire surfaces and caused a reduction in deactivation force for the Ormco and GAC brands, while maintaining them with adequate force levels. The MORELLI and ORTHOMETRIC archwires underwent no significant reduction in deactivation force; moreover, these maintained elevated levels of force after exposure to the oral medium. The Spearman test indicated a low correlation between biofilm accumulation and deflection force for the Morelli (R2=0.132 and P=0.683) and Orthometric (R2=0.308 and P=0.330) brands. On the other hand, the GAC (R=0.767 and P=0.004) and ORMCO (R=0.725 and P=0.008) brands exhibited statistically significant correlation between these variables.
Conclusion. Exposure to the oral medium for one month might give rise to significant changes in the dissipation of forces of orthodontic NiTi archwires, resulting from biofilm accumulation.
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Affiliation(s)
- Diogo M Sapata
- Department of Dentistry, State University of Maringá, Maringá-Pr, Brazil
| | - Adilson L Ramos
- Department of Dentistry, State University of Maringá, Maringá-Pr, Brazil
| | - Sérgio Sábio
- Department of Dentistry, State University of Maringá, Maringá-Pr, Brazil
| | - David Normando
- School of Dentistry, Federal University of Pará, Belém-PA, Brazil
| | - Renata C Pascotto
- Department of Dentistry, State University of Maringá, Maringá-Pr, Brazil
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Evaluating the effect of clinical usage and autoclave sterilization on the load deflection properties of three different orthodontic wires: Ex-vivo study. Int Orthod 2019; 17:469-477. [PMID: 31383599 DOI: 10.1016/j.ortho.2019.06.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the effect of intraoral aging and sterilization on the physical properties of rectangular Nickel-Titanium (NiTi), Beta-Titanium and Cooper NiTi (Cu-NiTi) arch wires. METHODS Three types of preformed 0.018×0.025 inch wires: super elastic NiTi wire, Beta-Titanium wire and Cu-NiTi wire (20 of each type) were divided into 4 groups: as-received (T0), autoclave (T1), intra oral aging after sterilization (T2) and intra oral aging (T3). Specimens in T2 and T3 groups were used in oral environment of 30 participants for 8 weeks. In the next step a length of 30mm was cut from both ends of each arch wire, and 120 straight specimens were achieved and tested by Instron for evaluating their load deflection properties. Data were analysed by means of One-way ANOVA and Tukey's (honestly significant difference) HSD tests. RESULTS In NiTi wire, all conditions led to a significant decrease in deactivation mean load compared with control in most deflections (P=0.000). In Cu-NiTi wire, all conditions led also to a significant decrease in deactivation mean load compared with the control (P=0.000). In Beta-Titanium wire, sterilization had no significant effect on the load deflection properties; but significant increase was observed in T2 (in all deflections) and T3 (in 1.8-1mm) compared with the control. CONCLUSIONS After all conditions, NiTi wire in spite of reduction in stiffness presented a mean load which stayed in category of heavy force. The Cu-NiTi wires saw an improvement in light physiologic force. In contrast, the Beta-Titanium stiffness increased after clinical usage, and the force level remained in the range of heavy force.
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Kameda T, Oda H, Ohkuma K, Terada K. Effects of magnetic fields from electric toothbrushes on fluoride- and oral bacteria-induced corrosion of orthodontic metallic wires. Dent Mater J 2019; 38:909-920. [PMID: 31366769 DOI: 10.4012/dmj.2018-293] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Corrosion of metallic materials in the oral cavity could trigger metal allergy in patients. To clarify the risk elevation of magnetic fields (MFs) exposure on metallic corrosion when combined with fluoride-containing dental care products and indigenous oral bacteria, we investigated electric toothbrush-derived MF-induced corrosion of orthodontic stainless steel (SUS) and nickel titanium (Ni-Ti) wires in the presence of fluoride and oral bacteria, i.e. Streptococcus (S) mutans and S. sanguinis. MFs induced an electric current in the wires under both environments. Oral bacteria corroded SUS wires, and fluoride corroded SUS and Ni-Ti wires as previously reported; however, no additive or synergistic effects of MF exposure on fluoride- and microbiologically-induced metallic corrosion were observed. These results suggest that the MFs from electric toothbrushes do not increase the risk of corrosion of metallic appliances, given that the oral environment of patients is exposed to oral bacteria and fluoride-containing products.
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Affiliation(s)
- Takashi Kameda
- Department of Orthodontics, Nippon Dental University School of Life Dentistry at Niigata
| | - Hirotake Oda
- Department of Periodontology, Nippon Dental University School of Life Dentistry at Niigata
| | - Kazuo Ohkuma
- Department of Dental Materials Science, Nippon Dental University School of Life Dentistry at Niigata
| | - Kazuto Terada
- Orthodontic Dentistry, Nippon Dental University Niigata Hospital
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Albuquerque CGD, Correr AB, Venezian GC, Santamaria M, Tubel CA, Vedovello SAS. Deflection and Flexural Strength Effects on the Roughness of Aesthetic-Coated Orthodontic Wires. Braz Dent J 2018; 28:40-45. [PMID: 28301016 DOI: 10.1590/0103-6440201700630] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 11/01/2016] [Indexed: 11/22/2022] Open
Abstract
The aim was to evaluate the flexural strength and the effects of deflection on the surface roughness of esthetic orthodontic wires. The sample consisted of 70 archwire 0.014-inch: polytetrafluorethylene (PTFE)-coated Nickel-Titanium (Niti) archwires (Titanol Cosmetic-TC, Flexy Super Elastic Esthetic-FSE, esthetic Nickel Titanium Wire-ANT); epoxy resin-coated Niti archwires (Spectra-S, Niticosmetic-TEC); gold and rhodium coated Niti (Sentalloy-STC) and a control group (superelastic Niti (Nitinol-NS). The initial roughness was evaluated with a rugosimeter. After that, the wires were submitted to flexural test in an universal testing machine. Each wire was deflected up to 2 mm at a speed of 1 mm/min. After flexural test, the roughness of the wires was evaluted on the same surface as that used for the initial evaluation. The data of roughness and flexural strength were analyzed by one-way ANOVA and Tukey's test (a=0.05). Student t-test compared roughness before and after deflection (a =0.05). The roughness of S and ANT (epoxy resin and PTFE-coated wires, respectively), before and after deflection, was significantly higher than the other groups (p<0.05). Wire deflection significantly increased the roughness of the wires S and STC (p<0.05). The flexural strength of groups FSE and NS (PTFE and uncoated) was higher compared with that of the other groups (p<0.05). We concluded that the roughness and flexural strength of the orthodontic wires does not depend on the type of the esthetic coating, but it is influenced by the method of application of this coating. The deflection can increase the roughness of the esthetic orthodontic wires.
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Affiliation(s)
| | - Américo Bortolazzo Correr
- Department of Restorative Dentistry, Dental Materials Division, Piracicaba Dental School, UNICAMP - Universidade Estadual de Campinas, Piracicaba, SP, Brazil
| | | | - Milton Santamaria
- Department of Orthodontics, Fundação Hermínio Ometto-UNIARARAS, Araras, SP, Brazil
| | - Carlos Alberto Tubel
- Department of Orthodontics, Fundação Hermínio Ometto-UNIARARAS, Araras, SP, Brazil
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Biomimetic coatings enhance tribocorrosion behavior and cell responses of commercially pure titanium surfaces. Biointerphases 2016; 11:031008. [PMID: 27514370 DOI: 10.1116/1.4960654] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Biofunctionalized surfaces for implants are currently receiving much attention in the health care sector. Our aims were (1) to create bioactive Ti-coatings doped with Ca, P, Si, and Ag produced by microarc oxidation (MAO) to improve the surface properties of biomedical implants, (2) to investigate the TiO2 layer stability under wear and corrosion, and (3) to evaluate human mesenchymal stem cells (hMSCs) responses cultured on the modified surfaces. Tribocorrosion and cell experiments were performed following the MAO treatment. Samples were divided as a function of different Ca/P concentrations and treatment duration. Higher Ca concentration produced larger porous and harder coatings compared to the untreated group (p < 0.001), due to the presence of rutile structure. Free potentials experiments showed lower drops (-0.6 V) and higher coating lifetime during sliding for higher Ca concentration, whereas lower concentrations presented similar drops (-0.8 V) compared to an untreated group wherein the drop occurred immediately after the sliding started. MAO-treated surfaces improved the matrix formation and osteogenic gene expression levels of hMSCs. Higher Ca/P ratios and the addition of Ag nanoparticles into the oxide layer presented better surface properties, tribocorrosive behavior, and cell responses. MAO is a promising technique to enhance the biological, chemical, and mechanical properties of dental implant surfaces.
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Marques IDS, Alfaro MF, Cruz NCD, Mesquita MF, Takoudis C, Sukotjo C, Mathew MT, Barão VAR. Tribocorrosion behavior of biofunctional titanium oxide films produced by micro-arc oxidation: Synergism and mechanisms. J Mech Behav Biomed Mater 2016; 60:8-21. [DOI: 10.1016/j.jmbbm.2015.12.030] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Revised: 12/10/2015] [Accepted: 12/21/2015] [Indexed: 11/15/2022]
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Beline T, Garcia CS, Ogawa ES, Marques ISV, Matos AO, Sukotjo C, Mathew MT, Mesquita MF, Consani RX, Barão VAR. Surface treatment influences electrochemical stability of cpTi exposed to mouthwashes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 59:1079-1088. [PMID: 26652467 DOI: 10.1016/j.msec.2015.11.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 08/10/2015] [Accepted: 11/16/2015] [Indexed: 11/26/2022]
Abstract
The role of surface treatment on the electrochemical behavior of commercially pure titanium (cpTi) exposed to mouthwashes was tested. Seventy-five disks were divided into 15 groups according to surface treatment (machined, sand blasted with Al2O3, and acid etched) and electrolyte solution (artificial saliva — control, 0.12% chlorhexidine digluconate, 0.05% cetylpyridinium chloride, 0.2% sodium fluoride, and 1.5% hydrogen peroxide) (n = 5). Open-circuit-potential and electrochemical impedance spectroscopy were conducted at baseline and after 7 and 14 days of immersion in each solution. Potentiodynamic test and total weight loss of disks were performed after 14 days of immersion. Scanning electron microscopy, energy dispersive spectroscopy, white light interferometry and profilometry were conducted for surface characterization before and after the electrochemical tests. Sandblasting promoted the lowest polarization resistance (Rp) (P b .0001) and the highest capacitance (CPE) (P b .006), corrosion current density (Icorr) and corrosion rate (P b .0001). In contrast, acid etching increased Rp and reduced CPE, independent to the mouthwash; while hydrogen peroxide reduced Rp (P b .008) and increased Icorr and corrosion rate (P b .0001). The highest CPE values were found for hydrogen peroxide and 0.2% sodium fluoride. Immersion for longer period improved the electrochemical stability of cpTi (P b .05). In conclusion, acid etching enhanced the electrochemical stability of cpTi. Hydrogen peroxide and sodium fluoride reduced the resistance to corrosion of cpTi, independent to the surface treatment. Chlorhexidine gluconate and cetylpyridinium chloride did not alter the corrosive behavior of cpTi.
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Affiliation(s)
- Thamara Beline
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil; IBTN/Br - Institute of Biomaterials, Tribocorrosion and Nanomedicine, Brazilian Branch, Brazil
| | - Camila S Garcia
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil
| | - Erika S Ogawa
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil; IBTN/Br - Institute of Biomaterials, Tribocorrosion and Nanomedicine, Brazilian Branch, Brazil
| | - Isabella S V Marques
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil
| | - Adaias O Matos
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil; IBTN/Br - Institute of Biomaterials, Tribocorrosion and Nanomedicine, Brazilian Branch, Brazil
| | - Cortino Sukotjo
- Department of Restorative Dentistry, University of Illinois at Chicago, College of Dentistry, 801 S Paulina, Chicago, IL 60612, USA; IBTN - Institute of Biomaterials, Tribocorrosion and Nanomedicine, USA
| | - Mathew T Mathew
- IBTN - Institute of Biomaterials, Tribocorrosion and Nanomedicine, USA; Department of Orthopedic Surgery, Rush University Medical Center, 1611 W Harrison, Chicago, IL 60612, USA
| | - Marcelo F Mesquita
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil
| | - Rafael X Consani
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil
| | - Valentim A R Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo 13414-903, Brazil; IBTN/Br - Institute of Biomaterials, Tribocorrosion and Nanomedicine, Brazilian Branch, Brazil.
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Marques IDSV, Barão VAR, da Cruz NC, Yuan JCC, Mesquita MF, Ricomini-Filho AP, Sukotjo C, Mathew MT. Electrochemical behavior of bioactive coatings on cp-Ti surface for dental application. CORROSION SCIENCE 2015; 100:133-146. [PMID: 26834277 PMCID: PMC4730887 DOI: 10.1016/j.corsci.2015.07.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The surface characteristics and electrochemical properties of bioactive coatings produced by plasma electrolytic oxidation (PEO) with calcium, phosphorous, silicon and silver on commercially pure titanium were evaluated. PEO treatment produced a porous oxide layer, which improved the surface topography, and enriched the surface chemistry with bioactive elements, responsible for mimicking bone surface. The surfaces with higher calcium concentration presented antibacterial and biocompability properties with better responses for corrosion and barrier properties, due to the presence of rutile crystalline structure. PEO may be a promising surface treatment option to improve the electrochemical behavior of dental implants mitigating treatment failures.
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Affiliation(s)
- Isabella da Silva Vieira Marques
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo, Brazil, 13414-903
| | - Valentim Adelino Ricardo Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo, Brazil, 13414-903
| | - Nilson Cristino da Cruz
- Laboratory of Technological Plasmas, Engineering College, Univ Estadual Paulista (UNESP), Av Três de Março, 511, Sorocaba, São Paulo, Brazil, 18087-180
| | - Judy Chia-Chun Yuan
- Department of Restorative Dentistry, University of Illinois at Chicago, College of Dentistry, 801 S Paulina, Chicago, Illinois, USA, 60612
| | - Marcelo Ferraz Mesquita
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo, Brazil, 13414-903
| | - Antonio Pedro Ricomini-Filho
- Department of Physiological Science, Piracicaba Dental School, University of Campinas (UNICAMP), Av Limeira, 901, Piracicaba, São Paulo, Brazil, 13414-903
| | - Cortino Sukotjo
- Department of Restorative Dentistry, University of Illinois at Chicago, College of Dentistry, 801 S Paulina, Chicago, Illinois, USA, 60612
| | - Mathew T. Mathew
- Department of Orthopedic Surgery, Rush University Medical Center, 1611 W Harrison, Chicago, Illinois, USA, 60612
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Barão VAR, Mathew MT, Yuan JCC, Knoernschild KL, Assunção WG, Wimmer MA, Sukotjo C. Influence of corrosion on lipopolysaccharide affinity for two different titanium materials. J Prosthet Dent 2013; 110:462-70. [DOI: 10.1016/j.prosdent.2013.04.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 04/12/2013] [Accepted: 04/27/2013] [Indexed: 12/31/2022]
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What is the role of lipopolysaccharide on the tribocorrosive behavior of titanium? J Mech Behav Biomed Mater 2012; 8:71-85. [DOI: 10.1016/j.jmbbm.2011.11.004] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Accepted: 11/11/2011] [Indexed: 11/22/2022]
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Barão VAR, Mathew MT, Assunção WG, Yuan JCC, Wimmer MA, Sukotjo C. Stability of cp-Ti and Ti-6Al-4V alloy for dental implants as a function of saliva pH - an electrochemical study. Clin Oral Implants Res 2011; 23:1055-62. [DOI: 10.1111/j.1600-0501.2011.02265.x] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/23/2011] [Indexed: 10/17/2022]
Affiliation(s)
- Valentim A. R. Barão
- Department of Dental Materials and Prosthodontics; Aracatuba Dental School; Univ Estadual Paulista (UNESP); Aracatuba; SP; Brazil
| | - Mathew T. Mathew
- Department of Orthopedic Surgery; Rush University Medical Center; Chicago; IL; USA
| | - Wirley Gonçalves Assunção
- Department of Dental Materials and Prosthodontics; Aracatuba Dental School; Univ Estadual Paulista (UNESP); Aracatuba; SP; Brazil
| | - Judy Chia-Chun Yuan
- Department of Restorative Dentistry; College of Dentistry; University of Illinois at Chicago; Chicago; IL; USA
| | - Markus A. Wimmer
- Department of Orthopedic Surgery; Rush University Medical Center; Chicago; IL; USA
| | - Cortino Sukotjo
- Department of Restorative Dentistry; College of Dentistry; University of Illinois at Chicago; Chicago; IL; USA
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Liu JK, Lee TM, Liu IH. Effect of loading force on the dissolution behavior and surface properties of nickel-titanium orthodontic archwires in artificial saliva. Am J Orthod Dentofacial Orthop 2011; 140:166-76. [DOI: 10.1016/j.ajodo.2010.03.031] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2009] [Revised: 03/01/2010] [Accepted: 03/01/2010] [Indexed: 11/26/2022]
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Barão V, Mathew M, Assunção W, Yuan J, Wimmer M, Sukotjo C. The Role of Lipopolysaccharide on the Electrochemical Behavior of Titanium. J Dent Res 2011; 90:613-8. [DOI: 10.1177/0022034510396880] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- V.A. Barão
- Department of Dental Materials and Prosthodontics, Univ Estadual Paulista (UNESP), Araçatuba Dental School, Jose Bonifacio, 1193, Araçatuba, São Paulo, 16015-050, Brazil
- Department of Restorative Dentistry, University of Illinois at Chicago – College of Dentistry, 801 S. Paulina, Room 365B, Chicago, IL 60612-7211, USA
| | - M.T. Mathew
- Department of Orthopedic Surgery, Rush University Medical Center, 1611 West Harrison, Chicago, IL 60612-7211, USA
| | - W.G. Assunção
- Department of Dental Materials and Prosthodontics, Univ Estadual Paulista (UNESP), Araçatuba Dental School, Jose Bonifacio, 1193, Araçatuba, São Paulo, 16015-050, Brazil
| | - J.C. Yuan
- Department of Restorative Dentistry, University of Illinois at Chicago – College of Dentistry, 801 S. Paulina, Room 365B, Chicago, IL 60612-7211, USA
| | - M.A. Wimmer
- Department of Orthopedic Surgery, Rush University Medical Center, 1611 West Harrison, Chicago, IL 60612-7211, USA
| | - C. Sukotjo
- Department of Restorative Dentistry, University of Illinois at Chicago – College of Dentistry, 801 S. Paulina, Room 365B, Chicago, IL 60612-7211, USA
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IIJIMA M, YUASA T, ENDO K, MUGURUMA T, OHNO H, MIZOGUCHI I. Corrosion behavior of ion implanted nickel-titanium orthodontic wire in fluoride mouth rinse solutions. Dent Mater J 2010; 29:53-8. [DOI: 10.4012/dmj.2009-069] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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