Results 41 to 50 of about 396,269 (359)

Requirements and characteristics of materials for functional impressions in complete dentures: a literature review [PDF]

open access: yes, 2023
Functional impression is one of the fundamental steps for the success of the rehabilitation treatment. Therefore, the objective of this work is, by means of a literature review, characterized as the main characteristics of the materials used in the ...
Almeida, Laíz Fernanda Tufi   +5 more
core   +1 more source

Physical properties of irreversible hydrocolloid dental impression materials obtained from brown algae species Padina sp.

open access: yesJournal of Physics: Conference Series, 2018
The aim of this study was to prepare an irreversible hydrocolloid dental impression material extracted from brown algae (Padina sp.). The physical properties, such as purity, viscosity, and setting time of the material, were evaluated and compared with ...
N. Hamrun   +5 more
semanticscholar   +1 more source

Influence of elastic recovery time on the Dimensional Stability of Polydimethylsiloxane (PDS)

open access: yesPolímeros, 2013
The aim of this study was to determine the influence from the recovering time on the dimensional stability of polydimethylsiloxane (Speedex, Coltène/Whaledent Company, Altstätten, Switzerland) prior to type IV dental stone pouring.
Leonardo de Cesero   +4 more
doaj   +1 more source

Accuracy of different impression materials in parallel and nonparallel implants

open access: yesDental Research Journal, 2015
Background: A precise impression is mandatory to obtain passive fit in implant-supported prostheses. The aim of this study was to compare the accuracy of three impression materials in both parallel and nonparallel implant positions.
Mahroo Vojdani   +2 more
doaj   +1 more source

Effectiveness of Disinfectants on Antimicrobial and Physical Properties of Dental Impression Materials.

open access: yesInternational Journal of Prosthodontics, 2016
PURPOSE The aim of this study was to assess the antimicrobial activity of chemical disinfectants on alginate and silicone impression materials. The effect of chemical disinfectants on the dimensional stability of the impression materials was also ...
Jean Karl Demajo   +6 more
semanticscholar   +1 more source

Extra-Oral Three-Dimensional (3D) Scanning Evaluation of Three Different Impression Materials—An In Vitro Study

open access: yesPolymers, 2022
Impression materials are used to record and reproduce the exact morphology of the patient’s oral cavity. The dimensional stability of a material is its ability to maintain the accuracy of recording the details of the oral cavity for a longer period of ...
E. Bud   +7 more
semanticscholar   +1 more source

Compressive Strength of Alginate Impression Material Incorporated with Silver and Zirconium Oxide Nanoparticles [PDF]

open access: yesAl-Rafidain Dental Journal, 2023
Aims: To investigate the effect of adding nanoparticles on the compressive strength of alginate impression material. Materials and Methods: In this study, two types of nanoparticles were added to alginate impression materials: silver and zirconium oxide ...
Luma Mudhafar Al-Nema, Ahmed Asim Al-Ali
doaj   +1 more source

Dimensional changes of commercial and novel polyvinyl siloxane impression materials following sodium hypochlorite disinfection

open access: yesPeerJ, 2022
Background Dental impressions are used to record anatomy of teeth and surrounding oral structures. Impression materials become contaminated with saliva and blood requiring disinfection, which may have negative impact on dimensional stability of materials.
Shahab Ud Din   +7 more
semanticscholar   +1 more source

Performance of dental impression materials: Benchmarking of materials and techniques by three-dimensional analysis.

open access: yesDental materials journal, 2015
Among other factors, the precision of dental impressions is an important and determining factor for the fit of dental restorations. The aim of this study was to examine the three-dimensional (3D) precision of gypsum dies made using a range of impression ...
H. Rudolph   +7 more
semanticscholar   +1 more source

Preliminary SEM Observations on the Surface of Elastomeric Impression Materials after Immersion or Ozone Disinfection [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2016
Introduction: Surface integrity of dental elastomeric impression materials that are subjected to disinfection is of major importance for the quality of the final prosthetic restorations. Aim: The aim of this qualitative Scanning Electronic Microscopy
NIKOLAS POULIS   +5 more
doaj   +1 more source

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