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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"ACRYLIC RESIN"”.
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The Wear of Acrylic Resin and Composite Resin Teeth against Polished and Glazed Zirconia
… available denture teeth made of different resins. Material and Method: Eight groups (n=10) of denture teeth and one control group (natural teeth) were selected. Two sets of each group were prepared along with two groups of natural molars as control groups (n=10). Two sets of 90 antagonist …
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A laboratory study of the adhesion of a restorative acrylic resin and a polycarboxylate cement on bovine enamel etched with fifty per cent phosphoric acid
… the bonding of a conventional restorative acrylic resin and a new polycarboxylate cement. The test specimens were subjected to 24 hours, 30 days and six months storage in water and then subjected• to temperature stress cycling and intermittent tensile stress cycling. A tensile test was used …
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Ο ΡΟΛΟΣ ΤΩΝ ΥΛΙΚΩΝ ΠΡΟΕΤΟΙΜΑΣΙΑΣ ΤΩΝ ΙΣΤΩΝ (TISSUE CONDITIONERS) ΣΤΗΝ ΕΠΟΥΛΩΣΗ ΤΡΑΥΜΑΤΟΣ ΤΟΥ ΒΛΕΝΝΟΓΟΝΟΥ ΤΗΣ ΥΠΕΡΩΑΣ: ΠΕΙΡΑΜΑΤΙΚΗ ΜΕΛΕΤΗ ΣΕ ΛΕΥΚΟΥΣ...
… OF A TISSUE CONDITIONER AND THOSE OF A NORMAL ACRYLIC RESIN UPON THE WOUND HEALING OF THE PALATAL MUCOSA.A TOTAL OF 140 K/F RATS WERE USED TO CARRY OUT THIS INVESTIGATION. THE FOLLOWING CONCLUSIONS WERE DROWN FROM THIS EXPERIMENTAL STUDY. A. DURING THE HEALING PROCESS THE INFLAMMATORY REACTION …
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Comparing flexural strength of acrylic processed by three different techniques
Statement of problem: Acrylic resin removable dentures are susceptible to fracture after periods of clinical use. There are many predisposing clinical factors for these denture fractures. Specifically, acrylic resin fractures due to poor flexural strength has historical been a problem with complete …
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Próteses odontológicas associadas a Nanopartículas de Prata biogênicas: caracterização e atividade antimicrobiana
… Biogenic AgNPs as a surface treatment for acrylic resin is one of the disruptive and innovative ways to make a prosthesis antimicrobial. Objective: the present study carried out the characterization, antimicrobial activity, durability determination, and roughness analysis of PMMA specimens …
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Comparison of Retention between Milled and Conventional Denture Bases: A Clinical Study
… CAD/CAM dentures milled from prepolymerized PMMA acrylic resin blocks theoretically have reduced or no polymerization shrinkage. There have been no clinical studies, to date, that have compared retention values between milled and conventionally processed denture bases. Therefore, the purpose of …
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The Study of Initiation Systems and Formulations for the Development of a Novel Silorane Biomaterial
… problems, we replaced the methacrylate-based resin with a silorane-based system, which are novel monomers previously used for dental composites. Our goal is to develop a new bone cement that would have handling times between 10 – 20 min, curing temperatures under 45 °C, good mechanical …
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Effects of fluoride varnish application and phosphate buffered saline solution with or without demineralizing conditions prior to bracket bonding on subsequent enamel-bracket shear bond strength
… procedures after the roots were embedded in acrylic resin. Specimen were randomly assigned to the following four groups: 1) fluoride varnish-PBS only; 2) fluoride varnish-PBS with demineralization; 3) no fluoride varnish-PBS only; 4) no fluoride varnish-PBS with demineralization. Immediately …
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Influence of Orthodontic Bracket Bonding Protocol on Zirconia Ceramics and Resulting Bond Strength, Adhesive Remnant, and Debonded-Polished Zirconia Surface Roughness
… specimens were milled, glazed, embedded in acrylic resin and the target area microetched with aluminum oxide. Glazed and microetched representative specimens were evaluated with energy dispersive spectroscopy (EDS). Specimens were randomly assigned to primer protocol, enamel (TransbondTM …
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Shear Strengths of Three "One-Step" Self-Etching Dental Bonding Agents
… 15 specimens each. The specimens were mounted in acrylic resin and the surface ground to expose superficial dentin. A standardized smear layer was created by polishing the surfaces with wet 600-grit silicon carbide paper. Each adhesive system was placed on the specimen surface according to the …
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A study of structure-property relationships in certain polymeric dental materials
Acrylic resin artificial teeth may be produced by Transfer or Pseudo compression moulding. Both of these moulding techniques were investigated to formulate the best conditions for use in a mass production environment and evaluated on a commercial basis. It was found that the transfer technique, …
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Evaluation of surface treatments for RC structures failing to meet South African durability index requirements
… reduce the ingress of chlorides while the acrylic dispersion, acrylic resin, cement based and cement based fibre reinforced coatings were effective in preventing carbonation. Furthermore, it was found that the increased service life due to the application of anti - carbonation coatings …
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Avaliação do efeito da imersão em diferentes soluções de limpeza na dureza, rugosidade e estabilidade de cor de dentes artificiais de resina acrílica
… roughness (Ra) and color stability of artificial acrylic resin teeth (Platinum TRI Bionew and 3G). To assess hardness and roughness, 80 maxillary central incisors was selected, which were included in PVC tubes and had planed their buccal surface with water sandpaper and polished with felt and …
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Dentin Remineralization Around Ceramir Restoration
… intact teeth were embedded in self-cured dental acrylic resin to expose buccal or lingual surfaces. The buccal/lingual surfaces were wet ground with carbide paper, final polishing were accomplished with aluminum to obtain highly polished dentin surface. Baseline Knoop micro hardness values were …
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Evaluation of Mechanical Properties of Provisional Fixed Partial Denture PMMA Material Containing Alumina Nanofibers
… nanofibers to commercially available PMMA resin will significantly increase its flexural strength, fracture toughness, and microhardness. Alumina nanofibers at 0.0 wt %, 0.5 wt %, 1.0 wt %, and 2.5 wt % were added to commercially available provisional fixed partial material (Jet Tooth …
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Riabilitazione protesica ed implanto-protesica di pazienti in età evolutiva affetti da Displasia Ectodermica
… impression material. A base of autopolymerizing resin was constructed and a wax rim was added to the base. The patient’s vertical dimension of occlusion was established by assessing phonetic and esthetic criteria. Preliminary occlusal relations were recorded, and the mandibular cast was mounted …
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Fracture resistance of calcium hydroxide-treated teeth filled with water- and PBS-mixed MTA
… 18 samples from each group were mounted in acrylic resin, with simulated periodontal ligament using a polyether impression material. The roots were subjected to a compressive force using an Instron® Universal testing machine until fracture, and the maximum force at fracture (F-max) were …