Results 71 to 80 of about 268,784 (208)

Influence of prosthesis type and intraoral scanner‐based extraoral scanning protocol on the passive fit of CAD‐CAM verification devices

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To evaluate the impact of different complete‐arch digital scanning techniques and prosthesis types on the passive fit of computer‐aided design and computer‐aided manufacturing (CAD‐CAM) verification devices. Materials and Methods Two different maxillary master casts with four multi‐unit abutment (MUA) implant analogs (FP‐1 and FP‐3 ...
Toshiki Nagai   +5 more
wiley   +1 more source

Assessment of fit accuracy and retentive strength of additively manufactured zirconia crowns luted to Ti‐base abutments with different resin cements: An in vitro study

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose This study investigated the influence of cement gap size on the marginal and internal fit, and cement gap size and type on retention of additively manufactured zirconia (AM‐Z) crowns on titanium bases (Ti‐base). Materials and Methods A total of 135 zirconia crowns were designed with three different cement gap sizes: 20 µm, 30 µm, and ...
Rafat Sasany   +2 more
wiley   +1 more source

Fracture mechanics analysis of the dentine-luting cement interface

open access: yes, 2002
The objectives of this study were to determine the fracture toughness of adhesive interfaces between dentine and clinically relevant, thin layers of dental luting cements. Cements tested included a conventional glass-ionomer, F (Fuji I), a resin-modified
Mitchell, C A   +5 more
core   +1 more source

Optimisation of interfacial bond strength of glass fibre endodontic post systems. [PDF]

open access: yes, 2011
MPhilCurrently endodontically treated teeth are clinically restored using a post and crown system, where the elastic modulus of the post is similar to dentine.
Thanjal, Narinderjeet Tina
core   +3 more sources

In Vitro Evaluation of the Microleakage in Bioflex Crowns Luted with Two Different Cements [PDF]

open access: yesJournal of South Asian Association of Pediatric Dentistry
Background: Microleakage, the penetration of oral fluids and bacteria at the tooth-cement-crown interface, is a primary cause of failure in dental restorations. It leads to secondary caries, pulp inflammation, and mechanical failure.
Harsh S Baldawa, Mahesh Ramakrishnan
doaj   +1 more source

Effect of margin thickness and cement gap on the fabrication and fit accuracy of additively manufactured crowns in definitive resins with different filler content

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To evaluate how commercially available composite resins in varying filler content affect the fabrication and fit accuracy (trueness and precision) of additively manufactured (AM) definitive crowns with different margin thickness and cement gaps by comparing them to subtractively manufactured (SM) polymer‐infiltrated ceramic crowns ...
Mustafa Borga Dönmez   +5 more
wiley   +1 more source

Bond strength enhancement for additively manufactured zirconia: Micro‐retentive design approach

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To investigate the effect of digitally designed micro‐retention features on the bond strength of additively manufactured (AM) zirconia copings. Materials and Methods Sixty titanium base abutments (NobelParallel, NobelBiocare), pretreated with 50 µm alumina particles were divided into four groups (n = 15 per group); one group with ...
Rama B. Al‐Rashdan   +5 more
wiley   +1 more source

Push-out bond strength of fiber posts to root dentin using glass ionomer and resin modified glass ionomer cements

open access: yesJournal of Applied Oral Science, 2014
OBJECTIVE: The purpose of this study was to assess the push-out bond strength of glass fiber posts to root dentin after cementation with glass ionomer (GICs) and resinmodified glass ionomer cements (RMGICs).
Jefferson Ricardo PEREIRA   +7 more
doaj   +1 more source

Effect of material, prosthesis height, and aging on the fracture strength of additively and subtractively manufactured implant‐supported cantilevered prostheses

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose This study aimed to evaluate the inherent and after cyclic loading fracture strength of implant‐supported cantilevered fixed prostheses fabricated from recently introduced additively manufactured (AM) and subtractively manufactured (SM) materials, considering variations in prosthesis height.
Mustafa Borga Dönmez   +6 more
wiley   +1 more source

The stress distribution of a primary molar tooth restored with stainless steel crown using different luting cements

open access: yesBMC Oral Health
Background The aim of this study is to evaluate the stress distributions of a primary molar tooth restored with a stainless steel crown (SSC) using resin and glass ionomer luting cements by Finite Element Analysis (FEA).
Mehmet Sami Guler   +4 more
doaj   +1 more source

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