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Ozcan Mutlu - One of the best experts on this subject based on the ideXlab platform.

  • An investigation of atomic force microscopy, surface topography and adhesion of luting Cements to zirconia: effect of silica coating, zirconia primer and laser
    'Informa UK Limited', 2019
    Co-Authors: Yildirim Bengisu, Kumbuloglu Ovul, Saracoglu Ahmet, Husain, Nadin Al-haj, Ozcan Mutlu
    Abstract:

    ###EgeUn###This study evaluated the effect various surface conditioning methods on the surface topography and adhesion of luting Cements to zirconia. Zirconia blocks (N = 25) were randomly assigned to five groups according to the surface conditioning methods: (a) No conditioning, control (CON), (b) tribochemical silica coating (TSC), (c) MDP-based zirconia primer (ZRP), (d) coating with nano aluminum nitride (ALN) (e) etching with Er: YAG laser (LAS). The conditioned zirconia blocks were further divided into five subgroups to receive the luting Cements: (a) MDP-based resin Cement (Panavia F2.0) (PAN), (b) 4-META-based Cement (Super Bond) (SUB), (c) UDMA-based (GCem) (GCE), (d) bis-GMA based (Bifix QM) (BIF) and (e) Polycarboxylate Cement (Poly-F) (POL). Cements were applied in polyethylene moulds (diameter: 3 mm; height: 2 mm). The bonded specimens were first thermocycled for 5500 cycles (5-55 degrees C) and then adhesive interface was loaded under shear (0.5 mm/min). The data (MPa) were analyzed using 2-way ANOVA, Tukey's and Bonneferroni tests (alpha = 0.05). Regardless of the Cement type, TSC resulted in significantly higher bond strength (p 0.05) being significantly higher than those of bis-GMA and Polycarboxylate Cements (p < 0.05). Failure types were frequently adhesive in all groups. Tribochemical silica coating provided superior bond results compared to other conditioning methods tested on zirconia especially in conjunction with UDMA- and 4-META-based resin Cements

  • An investigation of atomic force microscopy, surface topography and adhesion of luting Cements to zirconia: effect of silica coating, zirconia primer and laser
    Taylor & Francis, 2019
    Co-Authors: Yildirim Bengisu, Kumbuloglu Ovul, Saracoglu Ahmet, Al-haj Husain Nadin, Ozcan Mutlu
    Abstract:

    This study evaluated the effect various surface conditioning methods on the surface topography and adhesion of luting Cements to zirconia. Zirconia blocks (N = 25) were randomly assigned to five groups according to the surface conditioning methods: (a) No conditioning, control (CON), (b) tribochemical silica coating (TSC), (c) MDP-based zirconia primer (ZRP), (d) coating with nano aluminum nitride (ALN) (e) etching with Er: YAG laser (LAS). The conditioned zirconia blocks were further divided into five subgroups to receive the luting Cements: (a) MDP-based resin Cement (Panavia F2.0) (PAN), (b) 4-META-based Cement (Super Bond) (SUB), (c) UDMA-based (GCem) (GCE), (d) bis-GMA based (Bifix QM) (BIF) and (e) Polycarboxylate Cement (Poly-F) (POL). Cements were applied in polyethylene moulds (diameter: 3 mm; height: 2 mm). The bonded specimens were first thermocycled for 5500 cycles (5–55 °C) and then adhesive interface was loaded under shear (0.5 mm/min). The data (MPa) were analyzed using 2-way ANOVA, Tukey’s and Bonneferroni tests (alpha = 0.05). Regardless of the Cement type, TSC resulted in significantly higher bond strength (p ˂ 0.05) (13.3 ± 4.35–25.3 ± 6.3) compared to other conditioning methods (2.96 ± 1.5–5.4 ± 5.47). Regardless of the surface conditioning method, no significant difference was found between MDP, 4-META and UDMA based Cements (p > 0.05) being significantly higher than those of bis-GMA and Polycarboxylate Cements (p ˂ 0.05). Failure types were frequently adhesive in all groups. Tribochemical silica coating provided superior bond results compared to other conditioning methods tested on zirconia especially in conjunction with UDMA- and 4-META-based resin Cements

Yildirim Bengisu - One of the best experts on this subject based on the ideXlab platform.

  • An investigation of atomic force microscopy, surface topography and adhesion of luting Cements to zirconia: effect of silica coating, zirconia primer and laser
    'Informa UK Limited', 2019
    Co-Authors: Yildirim Bengisu, Kumbuloglu Ovul, Saracoglu Ahmet, Husain, Nadin Al-haj, Ozcan Mutlu
    Abstract:

    ###EgeUn###This study evaluated the effect various surface conditioning methods on the surface topography and adhesion of luting Cements to zirconia. Zirconia blocks (N = 25) were randomly assigned to five groups according to the surface conditioning methods: (a) No conditioning, control (CON), (b) tribochemical silica coating (TSC), (c) MDP-based zirconia primer (ZRP), (d) coating with nano aluminum nitride (ALN) (e) etching with Er: YAG laser (LAS). The conditioned zirconia blocks were further divided into five subgroups to receive the luting Cements: (a) MDP-based resin Cement (Panavia F2.0) (PAN), (b) 4-META-based Cement (Super Bond) (SUB), (c) UDMA-based (GCem) (GCE), (d) bis-GMA based (Bifix QM) (BIF) and (e) Polycarboxylate Cement (Poly-F) (POL). Cements were applied in polyethylene moulds (diameter: 3 mm; height: 2 mm). The bonded specimens were first thermocycled for 5500 cycles (5-55 degrees C) and then adhesive interface was loaded under shear (0.5 mm/min). The data (MPa) were analyzed using 2-way ANOVA, Tukey's and Bonneferroni tests (alpha = 0.05). Regardless of the Cement type, TSC resulted in significantly higher bond strength (p 0.05) being significantly higher than those of bis-GMA and Polycarboxylate Cements (p < 0.05). Failure types were frequently adhesive in all groups. Tribochemical silica coating provided superior bond results compared to other conditioning methods tested on zirconia especially in conjunction with UDMA- and 4-META-based resin Cements

  • An investigation of atomic force microscopy, surface topography and adhesion of luting Cements to zirconia: effect of silica coating, zirconia primer and laser
    Taylor & Francis, 2019
    Co-Authors: Yildirim Bengisu, Kumbuloglu Ovul, Saracoglu Ahmet, Al-haj Husain Nadin, Ozcan Mutlu
    Abstract:

    This study evaluated the effect various surface conditioning methods on the surface topography and adhesion of luting Cements to zirconia. Zirconia blocks (N = 25) were randomly assigned to five groups according to the surface conditioning methods: (a) No conditioning, control (CON), (b) tribochemical silica coating (TSC), (c) MDP-based zirconia primer (ZRP), (d) coating with nano aluminum nitride (ALN) (e) etching with Er: YAG laser (LAS). The conditioned zirconia blocks were further divided into five subgroups to receive the luting Cements: (a) MDP-based resin Cement (Panavia F2.0) (PAN), (b) 4-META-based Cement (Super Bond) (SUB), (c) UDMA-based (GCem) (GCE), (d) bis-GMA based (Bifix QM) (BIF) and (e) Polycarboxylate Cement (Poly-F) (POL). Cements were applied in polyethylene moulds (diameter: 3 mm; height: 2 mm). The bonded specimens were first thermocycled for 5500 cycles (5–55 °C) and then adhesive interface was loaded under shear (0.5 mm/min). The data (MPa) were analyzed using 2-way ANOVA, Tukey’s and Bonneferroni tests (alpha = 0.05). Regardless of the Cement type, TSC resulted in significantly higher bond strength (p ˂ 0.05) (13.3 ± 4.35–25.3 ± 6.3) compared to other conditioning methods (2.96 ± 1.5–5.4 ± 5.47). Regardless of the surface conditioning method, no significant difference was found between MDP, 4-META and UDMA based Cements (p > 0.05) being significantly higher than those of bis-GMA and Polycarboxylate Cements (p ˂ 0.05). Failure types were frequently adhesive in all groups. Tribochemical silica coating provided superior bond results compared to other conditioning methods tested on zirconia especially in conjunction with UDMA- and 4-META-based resin Cements

  • An investigation of atomic force microscopy, surface topography and adhesion of luting Cements to zirconia: effect of silica coating, zirconia primer and laser
    'Informa UK Limited', 2019
    Co-Authors: Yildirim Bengisu, Kümbüloğlu Ö., Saraçoğlu A., Al-haj Husain N., Özcan M.
    Abstract:

    This study evaluated the effect various surface conditioning methods on the surface topography and adhesion of luting Cements to zirconia. Zirconia blocks (N = 25) were randomly assigned to five groups according to the surface conditioning methods: (a) No conditioning, control (CON), (b) tribochemical silica coating (TSC), (c) MDP-based zirconia primer (ZRP), (d) coating with nano aluminum nitride (ALN) (e) etching with Er: YAG laser (LAS). The conditioned zirconia blocks were further divided into five subgroups to receive the luting Cements: (a) MDP-based resin Cement (Panavia F2.0) (PAN), (b) 4-META-based Cement (Super Bond) (SUB), (c) UDMA-based (GCem) (GCE), (d) bis-GMA based (Bifix QM) (BIF) and (e) Polycarboxylate Cement (Poly-F) (POL). Cements were applied in polyethylene moulds (diameter: 3 mm; height: 2 mm). The bonded specimens were first thermocycled for 5500 cycles (5–55 °C) and then adhesive interface was loaded under shear (0.5 mm/min). The data (MPa) were analyzed using 2-way ANOVA, Tukey’s and Bonneferroni tests (alpha = 0.05). Regardless of the Cement type, TSC resulted in significantly higher bond strength (p ? 0.05) (13.3 ± 4.35–25.3 ± 6.3) compared to other conditioning methods (2.96 ± 1.5–5.4 ± 5.47). Regardless of the surface conditioning method, no significant difference was found between MDP, 4-META and UDMA based Cements (p > 0.05) being significantly higher than those of bis-GMA and Polycarboxylate Cements (p ? 0.05). Failure types were frequently adhesive in all groups. Tribochemical silica coating provided superior bond results compared to other conditioning methods tested on zirconia especially in conjunction with UDMA- and 4-META-based resin Cements. © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group

J Margerit - One of the best experts on this subject based on the ideXlab platform.

  • Chemical and structural changes in zinc Polycarboxylate Cements after immersion in dilute organic acid solutions
    Journal of Materials Science: Materials in Medicine, 1998
    Co-Authors: J.-m Leloup, J Nurit, B Pauvert, A Terol, B Cluzel, J Margerit
    Abstract:

    The behaviour of zinc Polycarboxylate Cements in contact with dilute aqueous solutions of organic acids at concentrations close to those existing in buccal medium, was studied. The organic acids were acetic, citric, tartaric and lactic acids, at 0.01 M and 0.001 M. The elution of zinc and magnesium was 10–1000 times greater in acid than in pure water, and correlated with the concentrations and the dissociation constants, pK1, of the acids tested. In all cases, important water losses were observed. In the 0.01 M acids, the Cement structure collapsed to form a viscous, compact and homogeneous layer on the Cement surface. In this layer, the polymeric carboxylic chains were regenerated from the zinc and magnesium Polycarboxylate Cement. Comparison with pure water showed that even the smallest concentration of the weak acids greatly modified the Cement behaviour. This could explain the well-known differences in erosion processes between theoretical erosion predicted by standard specification tests and the in vivo situation. © 1998 Chapman & Hall

Eugene A. Pantera - One of the best experts on this subject based on the ideXlab platform.

  • Microleakage of temporary endodontic restorations in teeth restored with amalgam.
    Journal of Endodontics, 1990
    Co-Authors: Jeffery E. Turner, Ronald W. Anderson, David H. Pashley, Eugene A. Pantera
    Abstract:

    Microleakage of seven temporary restorative materials was evaluated in endodontic access preparations made in teeth restored with amalgam. Ten teeth were used for each of the seven materials: Cavit, Cavit-G, TERM, zinc phosphate Cement, Polycarboxylate Cement, glass ionomer Cement, and IRM. A class I amalgam was placed in the occlusal surface of each experimental tooth and an endodontic access preparation was made entirely within the amalgam. Then the access preparation was restored with one of the temporary restorative materials, and microleakage was evaluated using a fluid filtration technique. The amount of microleakage was quantiated by measuring the fluid flow at 15 min, 1h, 24 h, 1 wk, and 2 wk after insertion of the temporary restoration. Cavit, Cavit-G, TERM, IRM, and glass ionomer Cement all provided excellent seals while zinc phosphate Cement and Polycarboxylate Cement provided less effective seals.

  • SCIENTIFIC ARTICLES Microleakage of Temporary Endodontic Restorations in Teeth Restored with Amalgam
    1990
    Co-Authors: Jeffery E. Tumer, Ronald W. Anderson, David H. Pashley, Eugene A. Pantera
    Abstract:

    Microleakage of seven temporary restorative materials was evaluated in endodontic access preparations made in teeth restored with amalgam. Ten teeth were used for each of the seven materials: Cavit, Cavit-G, TERM, zinc phosphate Cement, Polycarboxylate Cement, glass ionomer Cement, and IRM. A class I amalgam was placed in the occlusal surface of each experimental tooth and an endodontic access preparation was made entirely within the amalgam. Then the access preparation was restored with one of the temporary restorative materials, and microleakage was evaluated using a fluid filtration technique. The amount of microleakage was quantitated by measuring the fluid flow at 15 min, 1 h, 24 h, 1 wk, and 2 wk after insertion of the temporary restoration. Cavit, Cavit-G, TERM, IRM, and glass ionomer Cement all provided excellent seals while zinc phosphate Cement and Polycarboxylate Cement provided less effective seals.

D.v.s. Murthy - One of the best experts on this subject based on the ideXlab platform.

  • INFLUENCE OF TALC ON THE PROPERTIES OF Polycarboxylate Cement
    Journal of Oral Rehabilitation, 1997
    Co-Authors: R. K. Bansal, U.s. Tewari, P. Singh, D.v.s. Murthy
    Abstract:

    summary Zinc oxide, the inorganic component of Polycarboxylate Cement, was mixed with talc in various proportions from 10% to 50%. These powder mixtures were spatulated with poly(acrylic acid) in three powder to liquid (P/L) ratios of 1:1, 1-5:1 and 2:1 (w/w). Properties such as setting time and compressive and diametral tensile strengths of the resultant Cements were determined. It was observed that the setting time of the resultant Cements increased with increasing talc content. The compressive and diametral tensile strengths also increased by approximately 54% with a 10% concentration of talc.

  • Influence of cryolite on the properties of Polycarboxylate Cement
    The Journal of Prosthetic Dentistry, 1995
    Co-Authors: R. K. Bansal, U.s. Tewari, P. Singh, D.v.s. Murthy
    Abstract:

    Zinc oxide, the inorganic component of Polycarboxylate Cement, was mixed with the filler cryolite (Na 3 A1F 6 ) in various proportions that ranged from 10% to 50%. These powder combinations were mixed with polyacrylic acid in three powder-to-liquid ratios of 1:1, 1.5:1, and 2:1 (w/w). The physical properties of the resulting Cements such as setting time and compressive and diametral tensile strengths were determined. It was observed that the setting time increased with an increase in cryolite content. The compressive and diametral tensile strengths also increased by twofold with a concentration of 20% cryolite.