Ceramic abutments and ceramic oral implants. An update

Kohal, Ralf‐Joachim; Att, Wael; Bächle, Maria; Butz, Frank

doi:10.1111/j.1600-0757.2007.00243.x

Cited by 146 publications

(143 citation statements)

References 124 publications

Supporting

Mentioning

128

Contrasting

Unclassified

Order By: Relevance

“…[19][20][21] Zirconia bioceramic can be considered a proper candidate for metallic replacement in endosseous dental implants. To, A-Y-TZP20 in vivo application, at first can be checked with an in vitro model.…”

Section: Discussionmentioning

confidence: 99%

Effect of Surface Modification on Viability of L929 Cells on Zirconia Nanocomposite Substrat

et al. 2017

View full text Add to dashboard Cite

IntroductionTitanium and its alloys as a dental implant have shown a high successful rate.1 Most metals or alloys are prone to corrosion process. Therefore, management and control of corrosion is a crucial point from biological aspects and may not limit to a local problem because the produced particles may migrate to far sites from the implant. Also it is important in terms of biocompatibility.2 So, the inert ceramic materials were suggested as alternatives to metals.3 Zirconia ceramic has been included in dentistry for different applications. In the design of implant, type of material and surface conditions have an impact on reliable osseointegration.5 Also, the degree of roughness is important. The different methods have been used to design the surface roughness.6 Beside effects of micro and nanoscale topography on different cells functions have examined in numerous studies. [7][8][9][10][11][12][13] This result has been explained by good cellular behavior. 7,10,13,14 In vitro and animal studies on zirconia have confirmed good biocompatibility and mechanical strength. 15,16 The osteoblastic response to different surface topographies of zirconia showed the higher cell proliferation in rough surfaces as compared to the smooth surface.17 Therefore the type of modification on morphology and viability L929 on A-Y-TZP20 substrate was evaluated by an invitro method. Methods Deposition of Hydroxyapatite Methods:In study evaluated viability of fibroblast cell following surface treatment. Therefore, viability L929 cells were characterized using MTT assay and scanning electron microscopy. Results:The viability assessment determined significant differences A-Y-TZP20 without surface treatment as compared to laser surface treatment (B), laser surface treatment + hydroxyapatiteyttrium stabilized tetragonal zirconia nanocomposite coat (C) and control. This study demonstrated that L929 cells approximately proliferated and spread on A-Y-TZP20 nanocomposite disk in laser surface treatment(B), Laser surface treatment + hydroxiapatite-yttrium stabilized tetragonal zirconia nanocomposite coat (C) groups similar to control group. Conclusion: Laser surface treatment showed positive effect on the viability of L929 cells.

show abstract

Section: Discussionmentioning

confidence: 99%

Effect of Surface Modification on Viability of L929 Cells on Zirconia Nanocomposite Substrat

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Estos presentaban caracterís-ticas ópticas aceptables en comparación con el titanio y fueron desarrollados en el laboratorio por medio de la técnica CAD/CAM (Andersson et al, 2001). Los problemas encontrados con estos pilares son esencialmente la débil resistencia a la fractura de 600 MPa (Kohal et al, 2008). Los pilares elaborados con materiales como la circona se utilizan para mejorar los resultados estéticos de las restauraciones implantosoportadas y a su vez son biocompatibles con propiedades mecánicas adecuadas.…”

Section: Introductionunclassified

Evaluación In vitro de la Resistencia a la Fractura de los Pilares Individualizados en Disilicato de Litio

Pérez

Bravo

Salazar

et al. 2016

Int. J. Odontostomat.

View full text Add to dashboard Cite

Odontostomat., 10(2):185-195, 2016. RESUMEN:Los pilares híbridos individualizados en disilicato de litio, permiten adaptarse a la forma y el perfil de emergencia obtenido después de la temporalización de los implantes, presentando buenas características ópticas y determinando la posibilidad de una cementación adhesiva. El propósito del estudio fue evaluar la resistencia a la fractura de pilares individualizados en disilicato de litio en comparación con los pilares en circona-ytria tetragonal (Y-TZP), ambos cementados en una base de titanio PGTB (Ti base) mediante un estudio experimental in vitro. Se confeccionaron 10 pilares: 5 como grupo control, elaborados en Y-TZP, mediante el sistema Ceramill multi-X Amanngirrbach ® y 5 pilares híbridos en disilicato de litio mediante la técnica de inyección (IPS e.max ® press abutment solution, Ivoclar Vivadent) como grupo experimental. Cada pilar se precargó a un implante con un torque de 30 N/cm 2 . Todas las coronas se fabricaron en disilicato de litio (técnica monolítica) y se cementaron usando cemento resinoso de curado dual (RelyX ® U200, 3M ESPE). La medición de la resistencia a la fractura se realizó en una maquina universal de pruebas (instron ® ), modelo 2519-105. La resistencia a la fractura fue almacenada y evaluada utilizando la prueba paramétrica t-student. Para evaluar las fracturas incipientes y clasificar el tipo de falla se usó un microscopio óptico Carl Zeiss. los valores de resistencia promedio para los pilares de disilicato de litio fueron de 655,5 N y para los de circona 780,52 N con una desviación estándar de 145,76 N y 147,71 N, respectivamente. Ambos tipos de pilares evidenciaron buen comportamiento ante la prueba de resistencia a la fractura; sin embargo, se requieren más estudios que evalúen este tipo de pilares.PALABRAS CLAVE: cerámicas, porcelana dental, disilicato de litio, pilar híbrido, resistencia a la fractura.

show abstract

“…Recently, a consistent trend has been observed toward esthetic improvements in implant restorative materials. To achieve optimal esthetics, investigators have developed zirconia ceramic abutments, advantages of which include light transmission properties, excellent esthetic qualities with resemblance to natural tooth color, and good compatibility with periimplant soft tissues 3,4) , with minimal disadvantages such as decreased fatigue resistance 5,6) . The fracture toughness of ceramics, even zirconia ceramics, is much less compared with that of metals.…”

Section: Introductionmentioning

confidence: 99%

Formation of white oxide layer on Zr-14Nb alloy using thermal treatment

Doi

Tsutsumi

et al. 2014

Dent. Mater. J.

View full text Add to dashboard Cite

This study aimed to develop a novel abutment material with good esthetic and mechanical properties by producing a white oxide layer on a zirconium-14 mass% niobium (Zr-14Nb) alloy substrate using a thermal oxidation process. Oxidation temperatures ranged 700-1000°C and oxidation time ranged 30-180 min. The color of the oxide layer varied depending on temperature and time. A white oxide layer was obtained under appropriate conditions. The oxide layer thickness increased with increased temperature and time, as revealed by scanning electron microscopy with energy-dispersive X-ray spectroscopy. Moreover, X-ray diffraction and X-ray photoelectron spectroscopy revealed that the oxide layer was predominantly monoclinic ZrO 2 , tetragonal ZrO 2 , and Nb 2 O 5 . The oxide layer revealed good abrasion resistance and high adhesion to the substrate. This novel process for producing white materials with good mechanical properties will be useful for abutments and prostheses in dental implant treatment.

show abstract

Ceramic abutments and ceramic oral implants. An update

Cited by 146 publications

References 124 publications

Effect of Surface Modification on Viability of L929 Cells on Zirconia Nanocomposite Substrat

Effect of Surface Modification on Viability of L929 Cells on Zirconia Nanocomposite Substrat

Evaluación In vitro de la Resistencia a la Fractura de los Pilares Individualizados en Disilicato de Litio

Formation of white oxide layer on Zr-14Nb alloy using thermal treatment

Contact Info

Product

Resources

About