534 research outputs found
sj-docx-1-jdr-10.1177_00220345221103137 – Supplemental material for Retention of Intrafibrillar Minerals Improves Resin–Dentin Bond Durability
No full textSupplemental material, sj-docx-1-jdr-10.1177_00220345221103137 for Retention of Intrafibrillar Minerals Improves Resin–Dentin Bond Durability by T. Shan, L. Huang, F.R. Tay and L. Gu in Journal of Dental Research</p
Les dialectes tai du Nghệ An, Vietnam (Tay Daeng, Tay Yo, Tay Muong)
No full textMise à jour, par l'auteur, d’un article publié (en français) sous son titre anglais : “The Tai dialects of Nghệ An, Vietnam (Tay Daeng, Tay Yo, Tay Muong)”, in: The Tai-Kadai Languages, edited by Anthony V. N. Diller, Jerold A. Edmondson, Yongxian Luo. Routledge, London and New York, 2008: 298-315.International audienceA presentation of the Tai dialects of Nghệ An, Vietnam (Tay Daeng, Tay Yo, Tay Muong). This book chapter appeared in 2008 under an English title, but the text is in French. The present version was revised by the author in 2017.Présentation des dialectes tai du Nghệ An, Vietnam: Tay Daeng, Tay Yo, Tay Muong. Ce chapitre d'ouvrage est paru en 2008 sous un titre anglais, mais le texte est en français. La présente version a été revue par l'auteur en 2017
Les dialectes tai du Nghệ An, Vietnam (Tay Daeng, Tay Yo, Tay Muong)
No full textMise à jour, par l'auteur, d’un article publié (en français) sous son titre anglais : “The Tai dialects of Nghệ An, Vietnam (Tay Daeng, Tay Yo, Tay Muong)”, in: The Tai-Kadai Languages, edited by Anthony V. N. Diller, Jerold A. Edmondson, Yongxian Luo. Routledge, London and New York, 2008: 298-315.International audienceA presentation of the Tai dialects of Nghệ An, Vietnam (Tay Daeng, Tay Yo, Tay Muong). This book chapter appeared in 2008 under an English title, but the text is in French. The present version was revised by the author in 2017.Présentation des dialectes tai du Nghệ An, Vietnam: Tay Daeng, Tay Yo, Tay Muong. Ce chapitre d'ouvrage est paru en 2008 sous un titre anglais, mais le texte est en français. La présente version a été revue par l'auteur en 2017
DS_10.1177_0022034518805419 – Supplemental material for Chitosan-Based Extrafibrillar Demineralization for Dentin Bonding
No full textSupplemental material, DS_10.1177_0022034518805419 for Chitosan-Based Extrafibrillar Demineralization for Dentin Bonding by L.S. Gu, X. Cai, J.M. Guo, D.H. Pashley, L. Breschi, H.H.K. Xu, X.Y. Wang, F.R. Tay and L.N. Niu in Journal of Dental Research</p
DS_10.1177_0022034519831931 – Supplemental material for MMP-8-Responsive Polyethylene Glycol Hydrogel for Intraoral Drug Delivery
No full textSupplemental material, DS_10.1177_0022034519831931 for MMP-8-Responsive Polyethylene Glycol Hydrogel for Intraoral Drug Delivery by J. Guo, H. Sun, W. Lei, Y. Tang, S. Hong, H. Yang, F.R. Tay and C. Huang in Journal of Dental Research</p
DS_10.1177_0022034520913540 – Supplemental material for Evaluation of a Collagen-Reactive Monomer with Advanced Bonding Durability
No full textSupplemental material, DS_10.1177_0022034520913540 for Evaluation of a Collagen-Reactive Monomer with Advanced Bonding Durability by F. Yu, M.L. Luo, R.C. Xu, L. Huang, W. Zhou, J. Li, F.R. Tay, L.N. Niu and J.H. Chen in Journal of Dental Research</p
sj-docx-1-jdr-10.1177_00220345231199416 – Supplemental material for Enhanced Bonding to Caries-Affected Dentin Using an Isocyanate-Based Primer
No full textSupplemental material, sj-docx-1-jdr-10.1177_00220345231199416 for Enhanced Bonding to Caries-Affected Dentin Using an Isocyanate-Based Primer by K. Tang, F. Wang, S.Q. Dai, Z.Y. Yang, L.Y. Duan, M.L. Luo, F.R. Tay, L.N. Niu, W. Zhou and J.H. Chen in Journal of Dental Research</p
Flood seasonality and generating conditions in the Tay catchment, Scotland from 1200 to present
No full textThe new maximum recorded river flows in Scotland since 1988 have triggered widespread interest in whether floods are becoming more frequent and in the conditions that generate floods of different magnitudes and frequencies. There are questions about the longer-term variability in flood-generating characteristics, and whether there are past analogues for present hydroclimatic variability. The present paper builds on previous work reconstructing a detailed historic flood chronology for the Tay, the largest catchment in Scotland, and its tributaries over the past 800 years, extending the gauged discharge record (1952 onwards). It categorizes flood-generating factors in the Tay catchment and analyses the hydro-meteorological conditions that have generated extreme and moderate floods over a historical period. This work is placed in a broader literature context of historical 'climaxes of storminess', periods of higher storm frequency, flood patterns observed in Scotland and Europe during the Little Ice Age and longer-term rainfall and temperature patterns. The paper concludes that the variability in flood-generating characteristics is highly dependent on the timescale of observation. Inevitably the relative dominance of winter and early spring flooding can vary from year to year and within specific time-periods, but so can the level of augmentation of the flood series with summer and autumn floods to produce notable 'flood years' and flood clusters. The Tay provides a good 'all-Scotland surrogate' for historical flood patterns, reflecting its gathering areas in eastern and western Scotland. The value of a historical approach to the assessment of flood seasonality and generating characteristics is clearly demonstrated. © The Author. Journal compilation © Royal Geographical Society (with The Institute of British Geographers) 2006
Guided Tissue Remineralization of Resin-Bonded Acid-Etched Dentin
No full textContemporary biomineralization strategies incorporate non-classical crystallization pathways of fluidic amorphous nanoprecursors and mesoscopic transformation. Using two functional biomimetic molecules, we previously regenerated mineralized dentin from acid-etched dentin using the Guided Tissue Remineralization (GTR) approach, with definitive intrafibrillar remineralization of type-I collagen. Degradation of denuded collagen within dentin adhesive resin-infiltrated dentin is a pertinent problem in dentin bonding. Here, we show that GTR provides a means of salvaging these degrading bonds by remineralizing resin-dentin interfaces. The GTR medium consists of a Portland cement/simulated body fluid that includes polyacrylic acid and polyvinylphosphonic acid biomimetic analogs for amorphous calcium phosphate dimension regulation and collagen targeting. Both interfibrillar and intrafibrillar apatites became readily discernible within the adhesive-bonded dentin after 2-4 months. Amorphous nanoprecursors created by GTR also penetrated the adhesive resin matrix to create nanocomposites. We anticipate GTR to be the starting point for more sophisticated strategies in extending the longevity of resin-dentin bonds
Early in vitro mutans streptococci colonization on different experimental resins
No full textObjectives: The aim of this study was to evaluate surface colonization by mutans streptococci (Ms) of five light-curing experimental resins with increasing hydrophilicity. The tested hypothesis was that adhesive hydrophilicity does not affect bacteria colonization.
Materials and methods: Five light-curing versions of neat experimental resin blends with increasing hydrophobicity were investigated (R1, R2, R3, R4 and R5). R1 and R2 contained ethoxylate or BisGMA/TEGDMA, respectively, and were very hydrophobic, similarly to pit-and-fissure sealants. R3was representative of a typical two-step etch-and-rinse adhesive, while R4 and R5 were similar to self-etching very hydrophilic resins containing carboxylic or phosphoric acid methacrylates, respectively. 13 disks (6.4mmdiameter and 1.5mmthick)were obtained for each of the formulations and polymerized with a lightcuring unit (Spectrum 800, DENTSPLY) for 80 s at 800mW/cm2.
Disks were finished using silicon carbide paper and stored in PBS for 72 h to allow leaching of unreacted monomers. Specimens were then sterilized and a 48-h incubation Ms monospecific biofilm was obtained on disk surfaces. The amount of viable biomass adherent to the surface of each disk was determined using a colorimetric technique (MTT assay) and spectrophotometric analysis by optical density (OP).
Results: R1 group showed the lowest OP values for bacterial colonization while R4 and R5 demonstrated the highest ones (ANOVA, p < 0.0001). An increasing trend of Ms colonization from R1 to R5, as resin hydrophobicity increases, was found.
Resin type Mutans streptococci
R1 1.085 ± 21.4a
R2 1.660 ± 36.7b
R3 1.664 ± 42.8b
R4 1.929 ± 19.4c
R5 1.932 ± 20.6c
Different superscript letters indicate statistical differences (p < 0.05).
Conclusions: The tested hypothesis was rejected since Ms surface colonization was influenced by hydrophilicity of the experimental resins. Lower hydrophilicity corresponded to lower Ms surface colonization. Further studies should confirm the ability of Ms to colonize resin surfaces in vivo
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