显示 1-30 共 39 条结果 关于 "333239"
Annette Wiegand et al.
Archives of oral biology, 54(8), 790-795 (2009-06-02)
This study aimed to analyse and compare the protective effect of buffered (pH 3.5) and native (pH 1.2) TiF(4) in comparison to NaF solutions of same pH on dentin erosion. Bovine samples were pretreated with 1.50% TiF(4) or 2.02% NaF...
Enrico Coser Bridi et al.
Archives of oral biology, 86, 51-57 (2017-11-25)
Investigate the effects of dentin pretreatment with 2.5% titanium tetrafluoride (TiF Sixty-four cavities at the enamel-dentin junction of dental fragments were randomly distributed according to groups (n=16): 1) TiF Enamel: groups receiving TiF Dentin pretreatment with TiF
Ana Carolina Magalhães et al.
Photomedicine and laser surgery, 29(8), 537-544 (2011-05-21)
This in vitro study aimed to analyze the influence of neodymium-doped yttrium aluminum garnet (Nd:YAG) laser irradiation on the efficacy of titanium tetrafluoride (TiF(4)) and sodium fluoride (NaF) varnishes and solutions to protect enamel against erosion. The effect of Nd:YAG...
Annette Wiegand et al.
Archives of oral biology, 55(3), 223-228 (2010-01-20)
This in situ study aimed to analyse the impact of different tetrafluorides (TiF(4), ZrF(4) and HfF(4)) and AmF on erosion and erosion plus abrasion of enamel and dentin. Ten volunteers took part in this crossover and double-blind study performed in...
Xiaoming Lv et al.
Dalton transactions (Cambridge, England : 2003), 43(40), 15111-15118 (2014-08-29)
A novel and facile strategy has been successfully developed to synthesize uniform gold@titanium dioxide octahedral nanocages (Au@TiO2), which have a well-defined double-shelled structure with Au as the internal shell and TiO2 as the external shell. The unique Au@TiO2 double-shelled octahedral...
Thomas R Gordon et al.
Journal of the American Chemical Society, 134(15), 6751-6761 (2012-03-27)
Control over faceting in nanocrystals (NCs) is pivotal for many applications, but most notably when investigating catalytic reactions which occur on the surfaces of nanostructures. Anatase titanium dioxide (TiO(2)) is one of the most studied photocatalysts, but the shape dependence...
Carl Hjortsjö et al.
Archives of oral biology, 59(12), 1328-1333 (2014-09-02)
This in vitro study aimed to examine the etching effect of acidic fluoride solutions on enamel. 24 human teeth divided into 48 enamel-specimens were partly isolated with impression material. Specimens were exposed for 10 min to 20ml of the following...
Ana Carolina Magalhães et al.
Journal of dentistry, 38(2), 153-157 (2009-10-08)
This in vitro study aimed to analyse the effect of a single application of TiF(4) and NaF varnishes and solutions to protect against dentin erosion. Bovine root dentin samples were pre-treated with NaF-Duraphat varnish (2.26%F, pH 4.5), NaF/CaF(2)-Duofluorid varnish (5.63%F...
B B Zhang et al.
Dental materials : official publication of the Academy of Dental Materials, 25(5), 672-677 (2009-01-20)
The purpose of this study was to investigate the corrosion behavior of Ti-Ag alloys in artificial saliva solutions. The corrosion behavior of experimental Ti-Ag alloys in artificial saliva was examined by means of potentiodynamic polarization measurements. The surface passive film...
Amr M Elnaghy et al.
BMC oral health, 21(1), 131-131 (2021-03-21)
To evaluate the effect of surface treatments on the push-out bond strength of Biodentine (BD) and white mineral trioxide aggregate (WMTA) to fiber posts. Two brands of fiber posts were used: Reblida post; RP and RelyX post; RX. Each type...
Priscila Maria Aranda Salomão et al.
PloS one, 12(6), e0179471-e0179471 (2017-06-15)
Titanium tetrafluoride (TiF4) has shown promising effect in preventing tooth lesions. Therefore, we compared the cytotoxicity of TiF4 with sodium fluoride (NaF) (already applied in Dentistry) considering different fluoride concentrations, pH values and experimental models. Step 1) NIH/3T3 fibroblasts were...
Ian D Tevis et al.
Nanoscale, 3(5), 2162-2165 (2011-04-07)
We report straight pores in titanium dioxide produced by a pattern transfer method with titanium fluoride hydrolysis. The resulting films on fluorine-doped tin oxide had pores with diameters of 30 nm and depths of 500 nm, corresponding to aspect ratios...
Luciana Pomarico et al.
General dentistry, 60(4), e249-e254 (2012-07-12)
The aim of this preliminary, split-mouth clinical trial was to evaluate how incipient carious lesions on permanent tooth enamel were affected by 4% titanium tetrafluoride (TiF4) when used with a sodium monofluorophosphate (MFP) dentifrice. Eight children were selected for this...
Codesido, E. M.; Cid, M. M. et al.
Tetrahedron Letters, 41, 5861-5861 (2000)
Hang Sun et al.
Journal of colloid and interface science, 505, 884-891 (2017-07-04)
Natural biological systems often use hollow structures to decrease reflection and achieve high solar light utilization. Herein, bio-inspired Au@TiO
Ana Carolina Magalhães et al.
Acta odontologica Scandinavica, 70(2), 160-164 (2011-07-26)
This in vitro study aimed to analyze the effect of TiF(4) compared to NaF varnishes and solutions, to protect against dentin erosion associated with abrasion. Bovine dentin specimens were pre-treated with NaF-Duraphat (2.26% F), NaF/CaF(2)-Duofluorid (5.63% F), experimental-NaF (2.45% F)...
A Topaloglu-Ak et al.
The Journal of clinical pediatric dentistry, 37(1), 45-51 (2013-01-25)
To evaluate whether TiF4 solution and APF gel had any adverse effects on the surface morphology of newly developed glass ionomers. Fifteen disc-shaped specimens of Fuji IX Extra, Fuji II LC and Ketac N100 were prepared and stored in 2...
A M Vieira et al.
Caries research, 45(2), 142-147 (2011-04-02)
The aims of this study were to compare daily versus single applications of low-concentration TiF(4) solutions for reduction of enamel erosion and to evaluate the enamel surface loss due to application of these solutions. Sixty bovine enamel samples were randomly...
A Wiegand et al.
Caries research, 43(4), 269-277 (2009-05-15)
This study aimed to analyse and compare the protective effect of buffered (pH 3.5) and native (pH 1.2) TiF(4) in comparison with NaF solutions on enamel erosion. Bovine samples were pretreated with 1.50% TiF(4) or 2.02% NaF (both 0.48 M...
Shimizu, M.; Morita, A.; Kaga, T.
Tetrahedron Letters, 40, 8401-8401 (1999)
M Dündar et al.
Journal of dental research, 90(1), 93-98 (2010-10-14)
Hybrid-layer degradation occurs because of acidic properties of currently used adhesive systems. Titanium tetrafluoride couples with tooth surface, and titanium compounds are not substituted. Caffeic acid phenethyl esther inhibits endogenous matrix metalloproteinases that cause hybrid-layer degradation. It was hypothesized that...
Flávia Mauad Levy et al.
International journal of paediatric dentistry, 22(1), 11-16 (2011-06-22)
OBJECTIVE. Previous in vitro study has shown that TiF(4) varnish might reduce enamel erosion. No data regarding the effect of this experimental varnish on enamel erosion plus abrasion, however, are available so far. Thus, this in vitro study aimed to...
Annette Wiegand et al.
Photomedicine and laser surgery, 28(2), 219-226 (2009-10-03)
This in vitro study aimed to analyze the influence of carbon dioxide (CO(2)) laser irradiation on the efficacy of titanium tetrafluoride (TiF(4)) and amine fluoride (AmF) in protecting enamel and dentin against erosion. Bovine enamel and dentin samples were pretreated...
Carl Hjortsjö et al.
Caries research, 49(6), 618-625 (2015-11-05)
This study aimed to investigate the surface zones of acidic fluoride-treated enamel. Human teeth were each divided into three or four enamel specimens that were treated for 10 min with solutions of 0.2 and 0.4% HF (pH 3.09 and 2.94)...
M Erhan Cömlekoğlu et al.
The journal of adhesive dentistry, 11(6), 447-453 (2009-12-17)
The etching of dental ceramics with a glassy matrix by means of hydrofluoric acid (HF) is highly effective and after the application of a silane coupling agent, a strong link between the adhesive and the ceramic is achieved. The purpose...
C Hjortsjö et al.
Caries research, 43(2), 126-131 (2009-03-27)
Acidic fluoride solutions may reduce dental erosion. The aim of this study was to compare the effect of different acidic fluoride solutions on enamel dissolution using an established in vivo model. When possible 4 anterior teeth (255 teeth in a...
L H Hove et al.
Caries research, 45(1), 64-68 (2011-02-22)
To evaluate how concentration and pH of TiF(4) influence the erosion-protective effect. Specimens were treated with a TiF(4) solution: (1) 0.5 M F, pH 1.2, (2) 0.05 M F, pH 2.1, (3) 0.5 M F, pH 2.1, or (4) 0.05...
K Sellschopp et al.
The Journal of chemical physics, 152(6), 064702-064702 (2020-02-18)
The ability to synthesize nanoparticles (NPs), here TiO2, of different shapes in a controlled and reproducible way is of high significance for a wide range of fields including catalysis and materials design. Different NP shapes exhibit variations of emerging facets...
Wessel, H. P.
Tetrahedron Letters, 31, 6863-6863 (1990)
Miethchen, R.; Hager, C.; Hein, M.
Synthesis, 159-159 (1997)

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