Results 61 to 70 of about 2,793 (203)

ZIRCONIA CERAMICS: PROPERTIES AND CLASSIFICATION

Česká Stomatologie a Praktické Zubní Lékařství, 2022
Introduction and aim: Zirconia is currently the most commonly used representative of polycrystalline dental ceramics. It is highly valued for its mechanical properties: hardness, strength and toughness.
T Kovalský, I Voborná, E Míšová, M Rosa, V Polanská, M Hepová, J Staněk   +6 more
doaj   +1 more source

Recycling End‐of‐Life Solid Oxide Cell Interconnect Assemblies into Commercial‐Grade AISI 304 Stainless Steels

steel research international, EarlyView.
This study validates a recycling pathway for converting interconnect assemblies from end‐of‐life SOC stacks into commercial‐grade AISI 304 steels. Using scrap‐based steelmaking operations, austenitic cast steels with <4.0% δ‐ferrite are successfully produced.
Jeraldine Lastam, Shine‐Od Mongoljiibuu, Alexander Specht, Daniel Grüner, Dmitry Sergeev, Urs A. Peuker, Michael Müller, Ruth Schwaiger   +7 more
wiley   +1 more source

The Influence of Zirconia Opaquer and Thickness of Monolithic Zirconia on the Final Shade

Journal of Applied Science and Innovation Studies
Abstract Statement of problem. Monolithic zirconia can be influenced by the underlying titanium base which alters the restoration shade and creates unsatisfactory optical results. Purpose. The purpose of this in vitro study is to find out the influence of zirconia opaquer on the optical proportion of monolithic zirconia at different thicknesses.
Feras Shaheen, Björn Gjelvold
openaire   +2 more sources

Aging of monolithic zirconia dental prostheses: Protocol for a 5-year prospective clinical study using ex vivo analyses

Contemporary Clinical Trials Communications, 2016
Background: Recent introduction of computer-aided design/computer-aided manufacturing (CAD/CAM) monolithic zirconia dental prostheses raises the issue of material low thermal degradation (LTD), a well-known problem with zirconia hip prostheses.
Vinciane Koenig, Claudine P. Wulfman, Mathieu A. Derbanne, Nathalie M. Dupont, Stéphane O. Le Goff, Mie-Leng Tang, Laurence Seidel, Thibaut Y. Dewael, Alain J. Vanheusden, Amélie K. Mainjot   +9 more
doaj   +1 more source

Spectrophotometric examination of monolithic zirconia materials

Fogorvosi Szemle, 2023
Introduction: Patients’ demand for perfectly esthetic restorations is unstoppably increasing, however creating naturallooking crowns and FPDs is highly affected by the experience of the dental technician even in the present day. This problem is even more complicated if the abutment is discolored (e.g. obturated).
József Saláta, Dóra Fehér, Sándor Lenk, Ferenc Ujhelyi, Judit Borbély, Péter Hermann, Emese Ábrám   +6 more
openaire   +1 more source

Nonthermal plasma approaches for combating implant‐associated infections: A compendious review

VIEW, EarlyView.
Implant‐associated infections pose serious clinical challenges. Non‐thermal plasma (NTP) modifications overcome this bottleneck in distinct ways relative to traditional sterilization methods. Gas‐phase plasmas generate highly energetic species, UV radiation and reactive oxygen/nitrogen species (RONS), which alter the implant surface properties.
A. M. Trimukhe, Satish Rojekar, Amol Gholap, K. Navaneetha Pandiyaraj, Mukesh Patekar, Claudia Riccardi, R. R. Deshmukh, Tomáš Kovářík, Kalim Deshmukh   +8 more
wiley   +1 more source

Effect of Crown Design, Cement Type and Margin Depth on the Removal of Cement Remnants Around Single Implant‐Supported Restorations. An In‐Vitro Study

Clinical Oral Implants Research, EarlyView.
ABSTRACT Objectives To assess the influence of crown design, cement type, and margin depth on the removal efficiency of residual cement around single implant‐supported restorations. Methods Twelve mandibular models with a missing first molar were fabricated and provided with single implant analogs (centrally/distally placed) and two different crown ...
Shaza Bishti, Christiane Apeldorn, Anne Rittich, Stefan Wolfart, Taşkın Tuna   +4 more
wiley   +1 more source

The Effect of Crown Height and Retentive Height of Abutment on the Fracture Resistance of Fatigued Monolithic Zirconia Anterior Implant Crowns—An In Vitro Study

Clinical Oral Implants Research, EarlyView.
ABSTRACT Objectives This laboratory study investigated the effect of two different retentive heights of Ti‐base abutments (3.5 and 5.5 mm) and crown heights (13 and 16 mm) on the load at failure and survival of monolithic zirconia implant‐supported crowns replacing a maxillary central incisor.
Esha Zahid, Jaafar Abduo, Attila Gergely, Roy Judge, Carolina Perez‐Rodriguez, Joseph Palamara   +5 more
wiley   +1 more source

Optical properties of translucent zirconia: A review of the literature

The EuroBiotech Journal, 2019
Translucent monolithic zirconia is the newest option of zirconia-based ceramics, which aimed to substitute the opaque classic yttria-stabilized tetragonal zirconia polycrystal (Y-TZPs) in more demanding esthetic cases.
Manziuc Manuela-Maria, Gasparik Cristina, Negucioiu Marius, Constantiniuc Mariana, Burde Alexandru, Vlas Ioana, Dudea Diana   +6 more
doaj   +1 more source

Effect of Implant Design on Fracture Resistance, Mode, and Crystal Structure of One‐ and Two‐Piece Zirconia Implants With Ceramic or Titanium Abutment Screws: An In Vitro Study

Clinical Oral Implants Research, EarlyView.
ABSTRACT Objectives To evaluate the fracture resistance, fracture modes, and crystalline phase changes of zirconia one‐piece implants (OPI) and bone‐level (BLTPI) or tissue‐level, two‐piece implants (TLTPI), with ceramic (C) or titanium (T) abutment screws after dynamic preloading in a moist environment.
Abdulaziz Gul, Evaggelia Papia, Siamak Eqtesadi, Magnus Anderson, Jonas P. Becktor, Per Vult von Steyern   +5 more
wiley   +1 more source