Zirconia as a Dental Biomaterial

Bona, Álvaro Della; Pecho, Óscar E.; Alessandretti, Rodrigo

doi:10.3390/ma8084978

Cited by 204 publications

(150 citation statements)

References 97 publications

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“…The sequential growth with correspondence C provided direct proof of the phenomenological theory. In addition, correspondence A was also observed frequently in partially-transformed grains, while it was rotated along the shear direction [1][2][3][4][5][6][7][8][9][10] t to an atypical A form. This hindered the self-accommodation process due to the large lattice mismatch.…”

Section: Discussionmentioning

confidence: 99%

“…Yttria-stabilized zirconia (YSZ) has an excellent combination of mechanical, thermal, and biological properties and is widely used in the automotive and chemical fields, and for femoral implants and thermal barrier coatings (TBCs). 1,2 In particular, the discovery of the increase in toughness of the material following a tetragonal (t) to monoclinic (m) martensitic transformation further widens the potential applications of YSZ ceramics. 3 As a result, this martensitic transformation has been one of the most studied phase transformations in the field of ceramics.…”

Section: Introductionmentioning

confidence: 99%

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Growth modes for monoclinic yttria‐stabilized zirconia during the martensitic transformation

Wang

Gauvin

et al. 2017

J Am Ceram Soc

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The tetragonal to monoclinic martensitic transformation of plasma-sprayed 3 mol % Y 2 O 3 -ZrO 2 coatings is investigated by electron backscatter diffraction. The original metastable tetragonal phase shows an approximate "basal" texture with {001} t parallel to the coating surface. Based on the orientation analysis, plenty of monoclinic variants with atypical correspondence which indicates the c t axis transforms to the a m axis where (100) m //(001) t , (010) m , and (001) m //{110} t are clearly identified in addition to the correspondence where the c t axis transforms to the c m axis. Moreover, three growth modes are proposed and discussed according to strain accommodation. The observed sequential growth obeys the correspondence of the c t axis to the c m axis. Fourfold growth combines the correspondences of the c t axis to the c m and a m axes. The interleaving growth follows the correspondences of the c t axis to the c m axis within three tetragonal domains. These phenomena demonstrate the typical twin-related and self-accommodating configuration, which is in agreement with the phenomenological theory. These finding provide fundamental insight into the martensitic transformation mechanism and demonstrate a route for increasing the lifetime by controlling the tetragonal to monoclinic phase transformation. K E Y W O R D S electron backscatter diffraction, martensitic transformation, orientation relationship, yttria-stabilized zirconia

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Growth modes for monoclinic yttria‐stabilized zirconia during the martensitic transformation

Wang

Gauvin

et al. 2017

J Am Ceram Soc

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“…During cooling stage, opposite transformation from the tetragonal to the monoclinic phase go on at 1052 °C and finishes at 1020 °C, it's called martensitic transformation. The volume of monoclinic unit cell is 4% more than the volume of tetragonal unit cell, this leads to the creation of ceramic flaws if no stabilizing oxides were used [2], many researches focused on using 3YSZ for prosthodontic applications (e.g., crowns, implants)and orthopedic implants, because this material exhibit the best combination of strength, toughness and hardness [3,4]. In dental tissue replacement, highstrength 3YSZ has been used for many purposes, as root canal posts, crowns for other ceramics, fixed and removable dental prostheses, implant supports, and dental fillers [5].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Zirconia- Hydroxyapatite Nanocomposites for Orthopedic and Dental Applications

Sabree¹,

Mahdi²

2018

IJET

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Zirconium oxide ceramic was proposed for different biomedical applications. It is used in orthopedic as hip and knee prostheses and in dentistry due to the good mechanical, biological high corrosion and wear resistance properties, addition to the aesthetic property owing to tooth like color. Zirconia stabilized with Y 2 O 3 has the best properties for these applications. The present work aims to study the effect of (5 and 10)Wt.% hydroxyapatite (HA) as additives to 3 mol% yttria stabilized zirconia (3YSZ) nano powder matrix. The green bod y samples were shaped by powder technology using cold pressing then sintering at (1300 and 1400)ᵒC. The 3YSZ/ HA nanocomposites samples were characterized by XRD to investigate phase stability with varying percent's of HA and different sintering temperatures, the mechanical properties (maximum bending strength and hardness) were investigated as a function of the HA content, the changes of the thermal expansion coefficient for composite samples were investigated using Dilatometer. The experimental results proved that additions of (5 and 10)Wt.% HA to 3YSZ matrix reduce both hardness and max. bending strength, while increasing sintering temperature from 1300ᵒC to 1400ᵒC leading to an increase in the hardness and bending strength for all composite samples. The results of thermal expansion test showed a reduction in the thermal expansion coefficient with presence of HA%, however the coefficient of 3YSZ/ 10%HA is closer to 3YSZ from 3YSZ/ 5%HA. EDS analysis shows improvement in the bioactivity of inert 3YSZ with HA% additions represented by increasing Ca and P ions on the composite samples after immersing in SBF for 6 days.

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“…Zircon (ZrSiO 4 ), an abundant mineral deposit, is used to obtain pure zirconia by chemical conversion. The zirconia structure is stabilized by the incorporation of different oxide dopants (CeO 2 , Y 2 O 3 , Al 2 O 3 , MgO, and CaO), leading to the formation of tetragonal partially stabilized zirconia [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Influence of the annealing treatment on the structure, morphology, and corrosion resistance of sputtered Zr‐Ti‐Si‐O coatings used for biomedical applications

Cotruț

Braic

Vrânceanu

et al. 2016

Materials & Corrosion

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The aim of the present article is to investigate the corrosion resistance of the Zr‐Ti‐Si‐O coatings (as‐deposited and annealed) as possible candidate as new biocompatible material. The coatings have been characterized in terms of elemental and phase composition, roughness and corrosion resistance in simulated body fluid (SBF) at 37 °C. The coatings, with a compositional ratio O/(Zr + Ti + Si) of 1.38, were found to consist of a mixture of ZrTiO4, ZrSiO4, Ti2O3, and SiOx phases. The samples annealed in O2 atmosphere at 1100 °C for 30 min resulted in improved crystallinity, increased surface area, surface roughness, and skewness. The results of the electrochemical tests revealed that Zr‐Ti‐Si‐O coatings had improved the corrosion resistance to the aggressive attack of the SBF as compared to the bare Ti6Al4V alloy, the best results being obtained on annealed coatings.

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Zirconia as a Dental Biomaterial

Cited by 204 publications

References 97 publications

Growth modes for monoclinic yttria‐stabilized zirconia during the martensitic transformation

Growth modes for monoclinic yttria‐stabilized zirconia during the martensitic transformation

Characterization of Zirconia- Hydroxyapatite Nanocomposites for Orthopedic and Dental Applications

Influence of the annealing treatment on the structure, morphology, and corrosion resistance of sputtered Zr‐Ti‐Si‐O coatings used for biomedical applications

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