Evaluation of shear bond strength of a novel nano-zirconia and veneering ceramics

Daud, Muhammad Hidayat Muhamad; Yew, Hsu Zenn; Zaman, Jasmina Qamaruz; Yahaya, Norziha; Muchtar, Andanastuti

doi:10.1016/j.ceramint.2016.10.076

Cited by 8 publications

(11 citation statements)

References 31 publications

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“…Although statistical analysis showed no substantial correlation between the CTE mismatch and SBS of veneered zirconias, groups with high CTE differences produced low SBS as explained in Table 4. The results of previous studies showed that veneered all-ceramic restorations spontaneously delaminate if CTE dissimilarity exceeds 2.0 × 10 6 /°C [15,24,25]. In this study, the mean CTE mismatches of all combinations were within the range of 0.63-0.78 × 10 6 /°C Fig.…”

Section: Resultssupporting

confidence: 60%

“…Ideally, a positive CTE deviation is desirable to produce compressive stress on the veneers at room temperature [23,24]. However, adverse tensile stresses will develop on the ceramic interface if a negative CTE discrepancy exists [15]. In the present study, all six core-veneer combinations recorded positive CTE mismatches.…”

Section: Resultsmentioning

confidence: 49%

“…By utilizing a special colloidal processing technique, zirconia powder with good particle homogeneity and a packing density of almost 100 wt% can be developed [11]. The combination of wet-processing and slip-casting techniques allows the fabrication of machinable zirconia blocks with good mechanical and aesthetic properties [12][13][14][15]. Furthermore, slip-casted zirconia blocks offer an economical alternative to the traditional compaction process [12] because zirconia slurry can be poured manually into special porous molds (plaster mold) to form zirconia frameworks without the need for specialized machines [13,14].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, slip-casted zirconia blocks offer an economical alternative to the traditional compaction process [12] because zirconia slurry can be poured manually into special porous molds (plaster mold) to form zirconia frameworks without the need for specialized machines [13,14]. Novel nanozirconia achieves su cient bond strength with the tested veneering porcelain [15].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Thermal Expansion on the Bond Strength of Nanozirconia and Veneering Ceramics

Almoualimy

Yew²,

Zaman

et al. 2020

Preprint

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This study was aimed to determine the coefficient thermal expansion (CTE) of colloidal-processed slip-casted novel nanozirconia (Zir) and to elucidate the effect of the differences in CTE values between zirconia cores and veneering porcelains on core–veneer shear bond strength (SBS). CTE measurement was performed on core materials (CMs; Zir and Cercon® [Cer]) and veneering ceramics (VCs; Ceram Kiss® [CK], VITA VM9® [VM9], and IPS e.max Ceram® [e.max]). The SBS test was conducted on six groups of core–veneer samples (Zir–CK, Zir–e.max, Zir–VM9, Cer–CK, Cer–e.max, and Cer–VM9). The mean CTE values (× 10− 6/°C ± standard deviation) of Zir and Cer were 7.86 ± 0.47 and 7.82 ± 0.49, respectively. CK, VM9, and e.max recorded mean CTE values of 7.20 ± 0.62, 7.20 ± 0.29, and 7.10 ± 0.46, respectively. No statistically significant differences were found among the CTE values of CMs and between those of VCs. Zir–VM9 recorded the highest mean SBS value (MPa) of 149.48 ± 67.64, whereas Cer–e.max produced the lowest SBS value of 44.07 ± 16.49. Combinations with high CTE disparities produced low SBS values. CTE discrepancies affected the SBS of veneered zirconia restorations. The novel zirconia showed similar performance and can be used as an alternative to commercial zirconia.

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Section: Resultssupporting

confidence: 60%

Section: Resultsmentioning

confidence: 49%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of Thermal Expansion on the Bond Strength of Nanozirconia and Veneering Ceramics

Almoualimy

Yew²,

Zaman

et al. 2020

Preprint

Self Cite

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“…Apart from liner application [11] and ceramic veneer type [12,13], the core-veneer bonding is apparently influenced by the surface properties of the ZrO 2 core [8,9,13,14]. For example, the increment in the surface area through sandblasting and mechanical grinding can enhance the mechanical interlocking between zirconia substrate and veneering ceramics to improve the bonding strength [8].…”

Section: Introductionmentioning

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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Effect of sintering temperature on the aging resistance and mechanical properties of monolithic zirconia

Amat

Muchtar

Amril

et al. 2019

Journal of Materials Research and Technology

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Evaluation of shear bond strength of a novel nano-zirconia and veneering ceramics

Cited by 8 publications

References 31 publications

Influence of Thermal Expansion on the Bond Strength of Nanozirconia and Veneering Ceramics

Influence of Thermal Expansion on the Bond Strength of Nanozirconia and Veneering Ceramics

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

Effect of sintering temperature on the aging resistance and mechanical properties of monolithic zirconia

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