Evaluation of mold-enclosed shear bond strength between zirconia core and porcelain veneer

Song, Kwang-Hyun; Im, Yong-Woon; Lee, Jung Hwan; Lee, Jonghyuk; Lee, Hae‐Hyoung

doi:10.4012/dmj.2017-339

Cited by 9 publications

(6 citation statements)

References 45 publications

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“…Ebadian et al [ 17 ] showed that coloring of zirconia specimens significantly decreased the biaxial strength of zirconia to pressed porcelain through slow tempering. Song et al [ 26 ] stated that sandblasting with 110 μ m alumina particles and 0.4 MPa pressure and coloring had no significant effect on SBS of zirconia to pressed porcelain in comparison with the control group. This difference may be due to the fact that they did not perform thermocycling in their study.…”

Section: Discussionmentioning

confidence: 99%

Shear Bond Strength of Colored and Sandblasted Zirconia to Ceramic Veneers Fabricated by the Pressing and Layering Techniques: An In Vitro Study

Abbasi

Ebadian

Aminianpour

2023

International Journal of Dentistry

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Introduction. Porcelain-veneered zirconia (PVZ) restorations are increasingly used due to their optimal esthetics and high strength. However, chipping of porcelain limits the application of PVZ restorations. The aim of this study was to assess the shear bond strength (SBS) of colored and sandblasted zirconia to ceramic veneers fabricated by the pressing and layering techniques. Materials and Methods. Sixty cubic zirconia specimens (10 × 10 × 2 mm) were assigned to three groups according to their surface treatment: (I) control, (II) sandblasting with 50 μm alumina particles (S), and (III) coloring (C). Each group was subsequently divided into two subgroups according to the porcelain-veneering technique: (I) layering (L) and (II) pressing (P). The specimens underwent 10,000 thermal cycles between 5 and 55°C, and their biaxial SBS was measured in an electromechanical universal test machine (0.5 mm/min with 2.5 kN load cell). The failure mode was also assessed under a stereomicroscope. Three samples were randomly selected from each subgroup (n = 18) for examination of zirconia-phase transformation by X-ray diffraction (XRD). Two-way and one-way ANOVA followed by the post hoc Tukey test were used to analyze statistical differences among the groups and subgroups (α = 0.05). Results. The sandblasted zirconia with press porcelain (SP) subgroup showed the highest (24.40 ± 8.16 MPa) and the colored zirconia with press porcelain (CP) subgroup showed the lowest (13.76 ±3.62 MPa) SBS. All failures were cohesive. Rate of phase transformation in layered porcelain was significantly lower than that in pressed porcelain ( P < 0.01 ). Conclusion. The sandblasted group showed the highest and the colored group showed the lowest SBS; the layered group showed higher SBS than the pressed group.

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Section: Discussionmentioning

confidence: 99%

Shear Bond Strength of Colored and Sandblasted Zirconia to Ceramic Veneers Fabricated by the Pressing and Layering Techniques: An In Vitro Study

Abbasi

Ebadian

Aminianpour

2023

International Journal of Dentistry

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“…Given that interfacial chemistry and related interfacial morphologies dominate the ceramic-ceramic bonding [24][25][26], in addition to interfacial morphologies, the formation of chemical bonding should play the indispensable role in the interfacial bond. In this study, the 5-day specimen had the greater Si content and penetration depth from the results of SNMS and SEM/mapping; however, its bond strength was the least among the treated groups.…”

Section: Discussionmentioning

confidence: 99%

Synergistic reinforcement of surface modification on improving the bonding of veneering ceramics to zirconia

Yan

Csík

Yang

et al. 2018

Ceramics International

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Veneering ceramics should be strongly bonded to zirconia core in order to achieve successfully long-term clinical practice. Indeed, to pursue the high zirconia core-veneering ceramic bonding is still a concerned issue. In this regard, this study was to treat zirconia surface using a 3 wt% Si 3 N 4 solution in 4 M NaOH and to investigate the effect of soaking time (5, 10, and 20 days) on the surface properties of zirconia and shear bond strength between zirconia and veneering ceramics. The residual veneering ceramics on zirconia surfaces and failure modes were also examined after fracture. The results showed that the phase composition of zirconia before and after surface modification was not changed. The elemental mapping and depth profiling consistently revealed the soaking-time-dependent Si content on the zirconia surface. The surface roughness of zirconia was significantly (P < 0.05) increased with the increasing soaking time. When zirconia was treated for 10 days, the shear bond strength value of 27.4 MPa was significantly (P < 0.05) higher than the control (18.6 MPa), associated with greater remaining amounts of veneering ceramics on the zirconia surface. The failure mode of the treated zirconia was almost the mixed failure. On the basis of the data, surface modification using Si 3 N 4 in NaOH solution for zirconia core could be a simple and effective method for enhancing the veneering ceramic-zirconia bonding.

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“…[58,59] In contrast, MgO-ZrO 2 can endure higher temperatures up to 800 C, but crystalline phase degradation would occur when treated over 1200 C, thus decreasing the mechanical properties of the material. [60] As for CeO 2 -ZrO 2 , it has a high fracture toughness and good resistance to low-temperature hydrothermal aging, but its hardness and strength are lower than that of 3Y-TZP. [43,61,62] The mechanical properties and high temperature stability of ZrO 2 ceramics can be further improved by doping various stabilizers.…”

Section: Effects Of Phase Stabilizers On Zro 2 Ceramic Fracture Tough...mentioning

confidence: 99%

ZrO₂ Matrix Toughened Ceramic Material‐Strength and Toughness

Liang

et al. 2022

Adv Eng Mater

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ZrO2 ceramic exhibits the characteristics of high hardness, good thermochemical stability, desirable biocompatibility, and unique stress‐activated tetragonal to monoclinic transformation toughening, thus having broad development prospects. However, as a typical ceramic material, it has the common shortcoming of brittleness and seriously limits the possible applications. In recent years, worldwide efforts have been made to improve the toughness of ZrO2 ceramic materials, which has great significance in promoting its industrial application. Herein, the influences of phase composition, stabilizer, grain size, and sintering method on fracture toughness of ZrO2 ceramic are introduced. The mechanism of phase transformation toughening, single‐phase and multiphase material dopant toughening, and lamellar ceramic toughening are also summarized. Moreover, the prevailing applications of toughened ZrO2‐based materials in structural ceramics, coatings, and biomaterials are discussed. The present review may offer insights in designing and fabricating ZrO2 materials with high strength and toughness to provide better performances in diverse applications fields.

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Evaluation of mold-enclosed shear bond strength between zirconia core and porcelain veneer

Cited by 9 publications

References 45 publications

Shear Bond Strength of Colored and Sandblasted Zirconia to Ceramic Veneers Fabricated by the Pressing and Layering Techniques: An In Vitro Study

Shear Bond Strength of Colored and Sandblasted Zirconia to Ceramic Veneers Fabricated by the Pressing and Layering Techniques: An In Vitro Study

Synergistic reinforcement of surface modification on improving the bonding of veneering ceramics to zirconia

ZrO₂ Matrix Toughened Ceramic Material‐Strength and Toughness

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Evaluation of mold-enclosed shear bond strength between zirconia core and porcelain veneer

Cited by 9 publications

References 45 publications

Shear Bond Strength of Colored and Sandblasted Zirconia to Ceramic Veneers Fabricated by the Pressing and Layering Techniques: An In Vitro Study

Shear Bond Strength of Colored and Sandblasted Zirconia to Ceramic Veneers Fabricated by the Pressing and Layering Techniques: An In Vitro Study

Synergistic reinforcement of surface modification on improving the bonding of veneering ceramics to zirconia

ZrO2 Matrix Toughened Ceramic Material‐Strength and Toughness

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ZrO₂ Matrix Toughened Ceramic Material‐Strength and Toughness