Water-Based Adhesive

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Maria Margarida Mateus - One of the best experts on this subject based on the ideXlab platform.

  • natural polymeric water based Adhesive from cork liquefaction
    Industrial Crops and Products, 2016
    Co-Authors: Rui Galhano Dos Santos, Ricardo Carvalho, Elisabete Silva, Joao C Bordado, Ana Cristina Cardoso, Maria Do Rosario Melo Costa, Maria Margarida Mateus
    Abstract:

    Abstract Herein we disclose a novel formulation of two components Water-Based Adhesive from a natural source, which is designed to glue lignocellulosic surfaces, mainly cork and wood. It is based on the aqueous extraction of liquefied cork, which results from the polyhydric alcohol acid-catalyzed liquefaction of cork dust or granules. The vacuum concentration of the referred extract leads to the first Adhesive component, which is then mixed and homogenized with the second one, a curing aliphatic compound. The addition of “cork powder” to the Adhesive formulation creates a stable Adhesive with good shear strength values. Thus, a methodology for the valorization of cork dust, a hazardous waste, is here outlined.

S.j. Robinson - One of the best experts on this subject based on the ideXlab platform.

  • A TEM Study of Two Water-Based Adhesive Systems Bonded to Dry and Wet Dentin
    Journal of Dental Research, 2016
    Co-Authors: B. Van Meerbeek, Yasuhiro Yoshida, Paul Lambrechts, Guido Vanherle, E.s. Duke, J.d. Eick, S.j. Robinson
    Abstract:

    To keep the exposed collagen scaffold penetrable to resin, it has been recommended that the conditioned dentin surface be maintained in a visibly moist condition, a clinical technique commonly referred to as wet bonding. In this study, resin-dentin interfaces produced with two Water-Based Adhesive systems-OptiBond (OPTI, Kerr) and Scotchbond Multi-Purpose (SBMP, 3M)-were compared by transmission electron microscopy, following the application of either a dry- or a wet-bonding technique. The hypothesis advanced was that the ultramorphology of the hybrid layer would differ depending on which bonding method was applied. A morphologically well-organized hybrid layer of collagen fibrils intermingled with resin in tiny interfibrillar channels was consistently formed by the OPTI system. The SBMP system was found to produce a hybrid layer with a more variable ultrastructure, less distinctly outlined collagen fibrils, and a characteristic electron-dense phase located at its surface. No major differences in hybrid l...

Rui Galhano Dos Santos - One of the best experts on this subject based on the ideXlab platform.

  • natural polymeric water based Adhesive from cork liquefaction
    Industrial Crops and Products, 2016
    Co-Authors: Rui Galhano Dos Santos, Ricardo Carvalho, Elisabete Silva, Joao C Bordado, Ana Cristina Cardoso, Maria Do Rosario Melo Costa, Maria Margarida Mateus
    Abstract:

    Abstract Herein we disclose a novel formulation of two components Water-Based Adhesive from a natural source, which is designed to glue lignocellulosic surfaces, mainly cork and wood. It is based on the aqueous extraction of liquefied cork, which results from the polyhydric alcohol acid-catalyzed liquefaction of cork dust or granules. The vacuum concentration of the referred extract leads to the first Adhesive component, which is then mixed and homogenized with the second one, a curing aliphatic compound. The addition of “cork powder” to the Adhesive formulation creates a stable Adhesive with good shear strength values. Thus, a methodology for the valorization of cork dust, a hazardous waste, is here outlined.

Deivanayagam Kandaswamy - One of the best experts on this subject based on the ideXlab platform.

  • a confocal microscopic evaluation of resin dentin interface using Adhesive systems with three different solvents bonded to dry and moist dentinan in vitro study
    Quintessence International, 2005
    Co-Authors: Bhuvaneswaran Mohan, Deivanayagam Kandaswamy
    Abstract:

    Objective: Total dehydration of acid-etched dentin is known to cause the collapse of collagen fiber, which leads to poor hybridization. Dentin-bonding systems with water as a solvent are found to rehydrate the collapsed collagen. Acetone-based Adhesives are found to compete with moisture, and the acetone carries the resin deep into the dentin. The question arises whether to dry the dentin and use a Water-Based Adhesive, or to keep the dentin moist and use an acetone- or alcohol-based Adhesive. The aim of this study was to compare different bonding systems and techniques to assess which is most successful. A confocal microscope was used to evaluate the amount of hybrid layer formation and the depth of resin tag formation. Method and materials: Superficial occlusal dentin specimens from 120 noncarious, freshly extracted human premolars were used for the study. The dentin was etched using 36% phosphoric acid for 15 seconds and then rinsed. The specimens were then randomly divided into 4 groups for different drying procedures: group I: air-dried for 30 seconds; group II: air-dried for 3 seconds; group III: blotted dry; group IV: overwet. The specimens were further subdivided into 3 groups to be tested with different bonding systems: subgroup A: acetone-based Adhesive (Prime & Bond NT); subgroup B: Water-Based Adhesive (Syntac Single Component); subgroup C: water- and ethanol-based Adhesive (Single Bond). The resulting resin-dentin interfaces were then examined and categorized via confocal microscopy, and relative values were assigned to each specimen. Results: Group IV (overwet) showed the lowest values, and the highest values were obtained in group III. The highest values were seen in group III, subgroup A (blotted dry, acetone-based bonding agent, Prime & Bond NT). Conclusion: Under these conditions, using these three bonding systems, maximum hybridization and resin tag formation was achieved using acetone-based Adhesive on etched dentin kept moist by blot drying.

Herman Sundfeld R. - One of the best experts on this subject based on the ideXlab platform.

  • Effects Of Dentin Dry/moist Condition On The Immediate Adhesive Performance Of Different Solvent-based Etch-and-rinse Adhesivesystems
    2015
    Co-Authors: Silveira Machado L., De Oliveira F.g., Andrade Guinossi T., Sundfeld Neto D., De Alexandre R.s., Figueiredo Reis A., Herman Sundfeld R.
    Abstract:

    Purpose: The purpose of this research was to analyze and measure, under optical microscopy, the hybrid layer thickness and resin tags length, as well as the microtensile bond strength of two conventional Adhesive systems when applied to dry and moist dentinal substrate. Methods: Thirty-two extracted human molars were randomly distributed into four groups according to the Adhesive systems (XP Bond and Prime&Bond 2.1) and moisture condition (dry and moist). In Groups I and II, XP Adhesive system was applied on dry and moist dentin, respectively; while Groups III and IV received PB Adhesive system, in the same way as was done in Groups I and II, respectively. After Adhesive and restorative procedures, all specimens were sectioned along their long axes; one hemi-tooth sample was subjected to the microtensile bond strength test while the other was decalcified and serially sectioned into six micron thick slices and sequentially mounted on glass slides. These sections were stained by the Brown and Brenn method for posterior analysis and measurement of the hybrid layer and resin tags under a light microscope with a micrometric ocular 40/075. Results: Data were analyzed using two-way ANOVA and Tukey's test (α=0.05). For the variable hybrid layer thickness, XP showed no significant differences between dry and moist dentin (5.2 μm and 5.5 μm, respectively), but for PB, hybrid layer was significantly thicker for moist (4.0 μm) than for dry dentin (3.0 μm). For the variable resin tags length XP showed 17.9 μm length for dry dentin and 20.8 μm for moist dentin; PB 11.7 μm for dry and 12.69 μm for moist dentin;there was no significant differences between them, independent of the moisture condition. For the variable microtensile bond strength, XP showed 38.0 MPa for dry dentin and 44.5 MPa for moist dentin; and PB showed 22.7 MPa for dry dentin and 20.8 MPa for dry dentin no significant difference was observed between moist and dry dentin for XP (p=0.2) and PB (p=0.7), but XP was presented significantly higher bond strength values than PB in both moisture conditions (p=0.003 for dry and p=0.002 for moist). Conclusion: The two-step butanol-based etch-and-rinse Adhesive XP Bond presented a superior behavior with regard to the hybrid layer thickness, length of resin tags and bond strength to dry and moist dentin substrates when compared with two-step acetone-based Adhesive system Prime&Bond2.1. © 2013 Elsevier Ltd.4316Buonocore, M.G., A simple method of increasing the adhesion of acrylic filling materials to enamel surfaces (1955) J Dent Res, 34, pp. 849-853Gwinnett, A.J., Histologic changes in human enamel following treatment with acidic Adhesive conditioning agents (1971) Arch Oral Biol, 16, pp. 731-738Sundfeld, R.H., Briso, A.L., De, P.M., Sundfeld, M.L., Bedran-Russo, A.K., Effect of time interval between bleaching and bonding on tag formation (2005) Bull Tokyo Dent Coll, 46, pp. 1-6Retief, D.H., Denys, F.R., Adhesion to enamel and dentin (1989) Am J Dent 2Spec No, pp. 133-144Finger, W.J., Fritz, U.B., Resin bonding to enamel and dentin with one-component UDMA/HEMA Adhesives (1997) European Journal of Oral Sciences, 105 (2), pp. 183-186Finger, W.J., Tani, C., Effect of relative humidity on bond strength of self-etching Adhesives to dentin (2002) Journal of Adhesive Dentistry, 4 (4), pp. 277-282Sundfeld, R.H., Valentino, T.A., Sversut De Alexandre, R., Briso, A.L.F., Sundefeld, M.L.M.M., Hybrid layer thickness and resin tag length of a self-etching Adhesive bonded to sound dentin (2005) Journal of Dentistry, 33 (8), pp. 675-681. , DOI 10.1016/j.jdent.2005.01.011, PII S0300571205000345MacHado, L.S., Sundfeld, R.H., Cardoso, J.D., Oliveira, F.G., Da Silva, A.P., Delicio, G., Observation of tags and hybrid layer of a single bottle conventional Adhesive system and a self-etching Adhesive system, on sound dentin (2009) Acta Odontol Latinoam, 22, pp. 183-189De Munck, J., Van Landuyt, K., Peumans, M., Poitevin, A., Lambrechts, P., Braem, M., Van Meerbeek, B., A critical review of the durability of adhesion to tooth tissue: Methods and results (2005) Journal of Dental Research, 84 (2), pp. 118-132. , DOI 10.1177/154405910508400204Miyazaki, M., Iwasaki, K., Onose, H., Moore, B.K., Enamel and dentin bond strengths of single application bonding systems (2001) American Journal of Dentistry, 14 (6), pp. 361-366Miyazaki, M., Tsubota, K., Onose, H., Hinoura, K., Influence of Adhesive application duration on dentin bond strength of single-application bonding systems (2002) Operative Dentistry, 27 (3), pp. 278-283Tay, F.R., Pashley, D.H., Aggressiveness of contemporary self-etching systems. I: Depth of penetration beyond dentin smear layers (2001) Dental Materials, 17 (4), pp. 296-308. , DOI 10.1016/S0109-5641(00)00087-7, PII S0109564100000877Pashley, D.H., Tay, F.R., Aggressiveness of contemporary self-etching Adhesives Part II: Etching effects on unground enamel (2001) Dental Materials, 17 (5), pp. 430-444. , DOI 10.1016/S0109-5641(00)00104-4, PII S0109564100001044Sundfeld, R.H., Da Silva, A.M., Croll, T.P., De Oliveira, C.H., Briso, A.L., De Alexandre, R.S., The effect of temperature on self-etching Adhesive penetration (2006) Compend Contin Educ Dent, 27, pp. 552-556. , quiz 557, 581Sundfeld, R.H., De Oliveira, C.H., Da Silva, A.M., Briso, A.L., Sundfeld, M.L., Resin tag length of one-step and self-etching Adhesives bonded to unground enamel (2005) Bull Tokyo Dent Coll, 46, pp. 43-49De Munck, J., Van Meerbeek, B., Yoshida, Y., Inoue, S., Vargas, M., Suzuki, K., Lambrechts, P., Vanherle, G., Four-year water degradation of total-etch Adhesives bonded to dentin (2003) Journal of Dental Research, 82 (2), pp. 136-140Van Meerbeek, B., De Munck, J., Yoshida, Y., Inoue, S., Vargas, M., Vijay, P., Van Landuyt, K., Vanherle, G., Adhesion to enamel and dentin: Current status and future challenges (2003) Operative Dentistry, 28 (3), pp. 215-235Van Meerbeek, B., Van Landuyt, K., De Munck, J., Hashimoto, M., Peumans, M., Lambrechts, P., Yoshida, Y., Suzuki, K., Technique-sensitivity of contemporary Adhesives (2005) Dental Materials Journal, 24 (1), pp. 1-13Reis, A.F., Giannini, M., Pereira, P.N.R., Long-term TEM analysis of the nanoleakage patterns in resin-dentin interfaces produced by different bonding strategies (2007) Dental Materials, 23 (9), pp. 1164-1172. , DOI 10.1016/j.dental.2006.10.006, PII S0109564106002740Reis, A.F., Giannini, M., Pereira, P.N.R., Effects of a peripheral enamel bond on the long-term effectiveness of dentin bonding agents exposed to water in vitro (2008) Journal of Biomedical Materials Research - Part B Applied Biomaterials, 85 (1), pp. 10-17. , DOI 10.1002/jbm.b.30909Carvalho, R.M., Mendonca, J.S., Santiago, S.L., Silveira, R.R., Garcia, F.C.P., Tay, F.R., Pashley, D.H., Effects of HEMA/solvent combinations on bond strength to dentin (2003) Journal of Dental Research, 82 (8), pp. 597-601Nakabayashi, N., Takarada, K., Effect of HEMA on bonding to dentin (1992) Dent Mater, 8, pp. 125-130Nakabayashi, N., Watanabe, A., Igarashi, K., AFM observation of collapse and expansion of phosphoric acid-demineralized dentin (2004) Journal of Biomedical Materials Research - Part A, 68 (3), pp. 558-565Anchieta, R.B., Oliveira, F.G., Sundfeld, R.H., Rahal, V., MacHado, L.S., Alexandre, R.S., Analysis of hybrid layer thickness, resin tag length and their correlation with microtensile bond strength using a total etch Adhesive to intact dentin (2011) Acta Odontol Latinoam, 24, pp. 272-278De Oliveira, F.G., Anchieta, R.B., Rahal, V., De Alexandre, R.S., MacHado, L.S., Sundefeld, M.L., Correlation of the hybrid layer thickness and resin tags length with the bond strength of a self-etching Adhesive system (2009) Acta Odontol Latinoam, 22, pp. 177-181Nakabayashi, N., Bonding of restorative materials to dentine: The present status in Japan (1985) Int Dent J, 35, pp. 145-154Nakaoki, Y., Nikaido, T., Pereira, P.N., Inokoshi, S., Tagami, J., Dimensional changes of demineralized dentin treated with HEMA primers (2000) Dent Mater, 16, pp. 441-446Tay, F.R., John Gwinnett, A., Wei, S.H.Y., Ultrastructure of the resin-dentin interface following reversible and irreversible rewetting (1997) American Journal of Dentistry, 10 (2), pp. 77-82Perdigao, J., Van Meerbeek, B., Lopes, M.M., Ambrose, W.W., The effect of a re-wetting agent on dentin bonding (1999) Dental Materials, 15 (4), pp. 282-295. , PII S0109564199000494Nakabayashi, N., Hiranuma, K., Effect of etchant variation on wet and dry dentin bonding primed with 4-META/acetone (2000) Dent Mater, 16, pp. 274-279Van Meerbeek, B., Yoshida, Y., Lambrechts, P., Vanherle, G., Duke, E.S., Eick, J.D., Robinson, S.J., A TEM study of two Water-Based Adhesive systems bonded to dry and wet dentin (1998) Journal of Dental Research, 77 (1), pp. 50-59Maciel, K.T., Carvalho, R.M., Ringle, R.D., Preston, C.D., Russell, C.M., Pashley, D.H., The effects of acetone, ethanol, HEMA, and air on the stiffness of human decalcified dentin matrix (1996) Journal of Dental Research, 75 (11), pp. 1851-1858Reis, A., Dourado Loguercio, A., Naberezny Azevedo, C.L., De Carvalho, R.M., Da Motta Singer, J., Miranda Grande, R.H., Moisture Spectrum of Demineralized Dentin for Adhesive Systems with Different Solvent Bases (2003) Journal of Adhesive Dentistry, 5 (3), pp. 183-192Kanca III, J., Wet bonding: Effect of drying time and distance (1996) Am J Dent, 9, pp. 273-276Reis, A.F., Oliveira, M.T., Giannini, M., De Goes, M.F., Rueggeberg, F.A., The Effect of Organic Solvents on One-Bottle Adhesives' Bond Strength to Enamel and Dentin (2003) Operative Dentistry, 28 (6), pp. 700-706Pashley, D.H., Agee, K.A., Nakajima F R Tay, M., Carvalho, R.M., Terada, R.S.S., Harmon, F.J., Lee, W.-K., Rueggeberg, F.A., Solvent-induced dimensional changes in EDTA-demineralized dentin matrix (2001) Journal of Biomedical Materials Research, 56 (2), pp. 273-281. , DOI 10.1002/1097-4636(200108)56:23.0.CO;2-ATay, F.R., Gwinnett, J.A., Wei, S.H.Y., Micromorphological spectrum from overdrying to overwetting acid-conditioned dentin in water-free, acetone-based, single-bottle primer/Adhesives (1996) Dental Materials, 12 (4), pp. 236-244Reis, A., Pellizzaro, A., Dal-Bianco, K., Gones, O.M., Patzlaff, R., Loguercio, A.D., Impact of Adhesive application to wet and dry dentin on long-term resin-dentin bond strengths (2007) Oper Dent, 32, pp. 380-387Dal-Bianco, K., Pellizzaro, A., Patzlaft, R., De Oliveira Bauer, J.R., Loguercio, A.D., Reis, A., Effects of moisture degree and rubbing action on the immediate resin-dentin bond strength (2006) Dental Materials, 22 (12), pp. 1150-1156. , DOI 10.1016/j.dental.2005.10.010, PII S0109564105003398Nakajima, M., Kanemura, N., Pereira, P.N., Tagami, J., Pashley, D.H., Comparative microtensile bond strength and SEM analysis of bonding to wet and dry dentin (2000) Am J Dent, 13, pp. 324-32

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