In vitro evaluation of the shear bond strength and bioactivity of a bioceramic cement for bonding monolithic zirconia

Dandoulaki, C; Rigos, Athanasios E.; Kontonasaki, Eleana; Karagiannis, Vasileios; Kokoti, Maria; Theodorou, G.; Papadopoulou, Lambrini; Koidis, Petros

doi:10.1016/j.prosdent.2019.04.016

Cited by 8 publications

(7 citation statements)

References 47 publications

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“…Thus, adhesive cementation of crowns and fixed dental prostheses in preparations with subgingival margins is a major clinical challenge. The difficulty to control the local moisture and in performing an adequate isolation of the area often leads the clinician to choose a non-adhesive cement (114,115). Bioactive cements, as GICs, resin-modified glass ionomers cements (RMGICs) and glass ionomers associated with calcium aluminate are interesting alternatives to lute fixed dental protheses in moisture conditions.…”

Section: Bioactive Materials For Cementation Of Indirect Restorationsmentioning

confidence: 99%

“…More recently, bioactive cements based on calcium aluminate have been introduced into the market for the cementation of indirect restorations, mainly on vital dental preparations (21,115,150). These cements combine the favorable properties of GICs, with the advantages of CAC.…”

Section: Nanostructurally Integrating Bioceramics Materialsmentioning

confidence: 99%

“…These cements, which have been called nanostructurally integrating bioceramics (NIB) cements (115), aim to combine principles of adhesion, integration and dentin sealing by the association of different materials (21). Such principles are based on the potential for chemical adhesion, remineralization of the dental structure and formation of hydroxyapatite (HAp), helping to reduce the incidence of secondary caries and post-operative sensitivity, and improving the marginal sealing of the restoration (150,153).…”

Section: Nanostructurally Integrating Bioceramics Materialsmentioning

confidence: 99%

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Bioactive Materials for Direct and Indirect Restorations: Concepts and Applications

2021

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Currently, minimally invasive restorations could be made in dentistry applying adhesive materials and adhesion principles to the dental structures. Following this philosophy, endodontic interventions have been avoided largely, preserving hard tissues, and maintaining dental vitality. Advances in biologically favorable bioactive materials enabled clinicans to induce repair and regeneration of dental tissues. Such materials are primarily used for pulp protection and cementation of indirect restorations. This review highlights current bioactive materials available, principles of bioactivity and their mechanisms of action.

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Section: Bioactive Materials For Cementation Of Indirect Restorationsmentioning

confidence: 99%

Section: Nanostructurally Integrating Bioceramics Materialsmentioning

confidence: 99%

Section: Nanostructurally Integrating Bioceramics Materialsmentioning

confidence: 99%

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Bioactive Materials for Direct and Indirect Restorations: Concepts and Applications

2021

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“…A cement of interest is novel bioactive, calcium aluminate, ceramic‐reinforced cement (CM). in vitro studies have examined the effectiveness of the bond of this cement to zirconia 18 and for zirconia crown retention 5 . Adhesive cementation of lithium disilicate crowns is often recommended 19 and a recent study confirmed this using current adhesive‐composite resin systems 1 .…”

Section: Introductionmentioning

confidence: 99%

Long‐term retention of lithium disilicate crowns with a current bioactive cement

Streiff

Lepe

Johnson

2021

J Esthet Restor Dent

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Objective: To determine if a recent bioactive cement provides acceptable lithium disilicate crown retention after long-term aging with monthly thermocycling. Materials and Methods: Extracted molars prepared with flat occlusal, 20 taper, 4 mm axial. Prepared teeth assigned to two groups for equal mean surface areas per group. Lithium disilicate crowns fabricated with occlusal bar to facilitate removal. Crowns etched with 9.5%HF and cleaned. Cements were Ceramir Crown & Bridge QuikCap (CM) and Ketac Cem Maxicap (KC). Before cementation, specimens stored in 37 C water. Crowns cemented with 196 N force, placed in 37 C, 100% humidity oven for setting. Specimens thermocycled (5-55 C) 5000 cycles monthly for 6 months; otherwise stored in phosphate buffered saline solution. Crowns removed axially at 0.5 mm/min. Removal forces recorded and stresses calculated using areas. Independent t-test (α = 0.05).Results: Levene test not significant (P = 0.649). CM removal stresses and forces (P < 0.001) were higher (1.93 MPa, 261.4 N) compared to KC (1.06 MPa, 139.4 N).CM cement found principally on crown intaglio, KC found with most cement on prepared tooth. Chi-square significant (P < 0.001).Conclusions: Following long-term aging with monthly thermocycling, lithium disilicate crowns were best retained by CM cement, however both cements are capable of retaining lithium disilicate crowns with preparations of ideal taper and length.Clinical Significance: Results serve as a basis for bioactive cement selection for retaining lithium disilicate crowns. Without optimal axial length, taper of preparation or retentive features, Ceramir Crown and Bridge QuikCap offers a bioactive cement with improved long-term retention when compared to Ketac Cem Maxicap for lithium disilicate crowns.

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“…These properties can address the problems of insufficient strength and toughness of conventional ceramic materials. 33,34 Moreover, YTZ has excellent biocompatibility, bone conductivity, and bone bonding properties, and it is not likely to cause any allergic reactions in the human body like other metallic materials. Therefore, YTZ has been widely used in hip prostheses, dental crowns, and other dental implant materials.…”

Section: Introductionmentioning

confidence: 99%

In vitro and in vivo evaluations of nano-hydroxyapatite/polyamide 66/yttria-stabilized zirconia as a novel bioactive material for bone screws: Biocompatibility and bioactivity

Zhao

Zhang

et al. 2020

J Biomater Appl

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Zirconia and its derivatives have been receiving increased levels of attention with regard to their potential application in bone tissue engineering. These materials are of particular interest because of their excellent characteristics, such as superior biological and mechanical properties. In this study, yttria-stabilized tetragonal zirconia (YTZ)-reinforced nanohydroxyapatite/polyamide 66 (nHA/PA66) bone screws were prepared. The biocompatibility and bioactivity of nHA/PA66/YTZ were evaluated in vitro using MC3T3-E1 cells. Biocompatibility and bioactivity experiments (cell counting kit-8 tests, cell immunofluorescence analysis, and polymerase chain reaction) showed that nHA/PA66/YTZ could facilitate the biological functions of MC3T3-E1 cells. The attachment, proliferation, spreading, and expression of genes associated with osteogenesis (collagen 1, osteopontin, and osteocalcin) in cells cultured with the nHA/PA66/YTZ composite were all superior compared with the control groups ( P < 0.05). In addition, nHA/PA66/YTZ bone screws were implanted into the femoral condyles of rabbits, and titanium screws were employed as a control group; postoperative histology and blood analysis revealed no obvious damage to the liver, kidneys, or any other major organs in either of the experimental groups. Moreover, nHA/PA66/YTZ screws resulted in significantly better bone-implant contact interfaces and enhanced formation of trabecular bone ( P < 0.05); these characteristics were markedly better than those in the group that received titanium screws. These observations indicate that YTZ-reinforced nHA/PA66 composites have significant potential for applications in bone tissue engineering.

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In vitro evaluation of the shear bond strength and bioactivity of a bioceramic cement for bonding monolithic zirconia

Cited by 8 publications

References 47 publications

Bioactive Materials for Direct and Indirect Restorations: Concepts and Applications

Bioactive Materials for Direct and Indirect Restorations: Concepts and Applications

Long‐term retention of lithium disilicate crowns with a current bioactive cement

In vitro and in vivo evaluations of nano-hydroxyapatite/polyamide 66/yttria-stabilized zirconia as a novel bioactive material for bone screws: Biocompatibility and bioactivity

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