This in vitro study intended to investigate the mechanical and thermal characteristics of Valplast, polymethyl methacrylate denture base resin which different esthetic fibers (E-glass, nylon 6 or 6.6) were added.FIVE GROUPS WERE FORMED: control (PMMA), PMMA-E glass, PMMA-nylon 6, 6.6 Valplast resin. For transverse strength test specimens prepared accordance with ANSI/ADA specification No.12, for impact ASTM D-256 standard used. With intent evaluate properties strength, three-point bending...

In this study, three bioceramic materials, [IPS Empress CAD (Ivoclar), IPS e.max and Lava Ultimate (3M ESPE)] were treated with commercial mouthrinses [Listerine, Tantum Verde, Klorhex]; changes in colour reflectance surface roughness values then quantitatively assessed.One hundred twenty ceramic samples, dimensions of 2 × 12 14 mm, prepared divided into nine sample groups, except control samples. The samples immersed the mouthrinse solutions for 120 hrs, measured by UV light...

The purpose of this study was to investigate how cigarette smoking affects the surface roughness (R

The aim of this study was to investigate the surface microhardness and roughness properties a modified glass ionomer cement formed by adding different ratios Chitosan, when exposed saliva acid erosive gastric cycle environments.Chitosan added conventional liquid at volumes 5% 10%. chitosan-modified used for experimental group, traditional control group. All groups were separated into two subgroups. One these subgroups subjected cycle. other subgroup immersed in artificial saliva....

PURPOSE This study investigated the peel strength of two different soft liners to a polymethylmethacrylate (PMMA) denture base resin before and after thermocycling. MATERIALS AND METHODS The silicone-based liner materials tested were Molloplast B Permaflex; material was heat-cured acrylic resin, Meliodent. A total 40 specimens prepared using rectangular molds with dimensions 100 x 10 2 mm for PMMA 150 liners, as described in ASTM-D903-93. For each materials, packed against cured surface...

This in vitro study investigated the mechanical and structural characteristics of lignin-added PMMA resin composites at concentrations 1, 3, 5% by weight. Four sample groups were formed. For transverse strength test, specimens prepared accordance with ANSI/ADA specification number 12, for impact test ASTM D-256 standards used. With intent to evaluate properties strength, three-point bending (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"...

Objectives. This study aimed to evaluate through comparative tests the effect of menstrual cycle on levels depression, sleep quality and grip strength, fingertip touch manual dexterity students in Dental Faculty. Methods. The sample was formed from female total 70 participants comprised 31 first year 39 final year. Evaluations were made two different consecutive phases cycle. Data collected using Beck depression inventory (BDI), Pittsburgh index (PSQI), handgrip lateral strength...

AbstractIn the present study, tensile bond strength between an acrylic resin and a resilient denture liner, Molloplast B, was studied. To enhance bonding capacity these materials, surface modified using ethyl methacrylate, iso-butyl methacrylate or tert-butyl monomers. Changes on surfaces were investigated by Fourier transform infrared spectroscopy with attenuated total reflectance. Only modifications application appeared to have increasing effect value. Ethyl however, had lowering this...

This study evaluated tensile bond strength of a denture soft lining material to poly (methylmethacrylate) (PMMA) base resin subjected different surface treatment modalities and thermocycling. The materials tested were silicone-based liner, Molloplast B®, heat-cured resin, MeliodentTM. was packed against cured PMMA which smoothed; sandblasted with 250-μm Al2O3 particles; or lased KTP laser; uncured dough (n = 10). In each group, five specimens thermocycled in water bath (5–55°C; 3000 cycles)...

PURPOSE To determine the effect of resin surface treatment with dissolved maleic anhydride in butanone added into primer on tensile bond strength between an acrylic denture base and a silicone soft liner. MATERIALS AND METHODS test strength, standard dumbbell-shaped specimens were prepared. Five experimental groups, including control, tested (n = 5). Maleic solutions prepared at concentrations 1%, 5%, 10% or 20% then mixed 1 ml Primo adhesive mixtures applied onto bonding surfaces. Silicone...

This study aimed to use scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS) examine the elements that passed into gastric acid solution after application of a erosive cycle chitosan modified glass ionomer cement (GIC). Chitosan GIC samples were obtained by adding (vol/vol) 5 and 10% for experimental groups. These two groups control group subjected treatment 60 s six times day 10 days. The sample surfaces coated approximately 1 nm gold increase conductivity Q 150R ES...

This study aimed to evaluate the effect of try-in paste contamination on bond strength lithium disilicate glass–ceramic dentin treated with immediate (IDS) or delayed (DDS) sealing techniques. Occlusal halves 33 molars were decapitated and divided into three groups (n = 10). Lithium discs (3 × 5 mm) prepared. For Group A, provisional crown was applied over soaked in distilled water. cemented following conditioning a three-step etch rinse adhesive. In B (IDS), adhesive dentin. The surfaces...

Cigarette smoke significantly impacts teeth and dental composites, making smoking simulators vital for studying discoloration, staining, surface roughness, topography. Conventional face challenges such as incomplete process simulation, inadequate exposure unit design, improper specimen positioning. This study presents a novel, accurate, automatic tobacco simulator addressing these issues. The includes life-sized artificial mouth unit, 3D-printed jaw models natural sample positioning, vacuum...

This study evaluated the effect of oxygen plasma and argon treatments with different application times on tensile bonding a silicone-based denture liner to polymethylmetacrylate (PMMA).Seven groups (n = 5) were prepared six them treated by or 30s, 60s, 120s, respectively; one group was left untreated served as control. After processing liner, specimens deflasked stored dry for 24 h, they then subjected bond strength testing. Differences in values determined using one-way ANOVA (α...

C l i n M e d International Library Citation: Soygun K, Unal M, Ozer A, Gulnahar E, Bolayir G (2015) Effects of Different Curing Unites on Bulk Fill Composites. Int J Oral Dent Health 1:013 Received: June 26, 2015: Accepted: August 06, Published: 09, 2015 Copyright: © K. This is an open-access article distributed under the terms Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided original author source are credited. et...

The effect of two denture cleansers (Polident® and Protefix®) on the tensile bond strength between four soft liner materials (Molloplast B®, Permaflex®, Sofreliner Tough Medium®, GC Reline Soft®) a conventional base resin was investigated. For each 35 test specimens were prepared according to requirements assigned into seven groups (n = 5). Before testing, five kept in water or soaked cleansing solutions during 2 7 d. Five other samples served as control group subjected directly testing....

Objectives: To investigate the effects of application ozone with different durations on bond strength between PMMA and soft liner material. Materials Methods:The tested in this study was a heat processed silicone-based material, Molloplast B (ML) (Detax, Ettlingen, Germany), denture base material heat-cured poly (methyl methacrylate) (PMMA) acrylic resin (Meliodent, Bayer Dental, Newbury, UK).Four sample groups were formed each them consisted 5 specimens.Groups 2, 3, 4 performed gaseous 40,...

The high success rate of endodontic treatments caused an increase in demand for the post-core systems restoration severely damaged teeth. Although metal posts are most commonly used alternatives, metallic color and opaque appearance these materials lead to discoloration gums roots.

In the present study, tensile bond strength between on acrylic resin and a soft liner, molloplast B, was studied. To enhance bonding capacity these materials, surface modified using ethyl methacrylate, iso-butyl methacrylate or tert-butyl monomers. The monomers were applied onto surfaces of components for 60, 120 180 s values obtained. statistically compared. Changes investigated by fourier transform infared spectroscopy with attenuated total reflectance (FTIR-ATR). highest value obtained...

BACKGROUND: The stability of the implant-abutment interface is an important factor that influences load distribution on marginal bone. OBJECTIVE: In this study, three dental implants with same connection were subjected to different dynamic loading cycles. fracture strengths and horizontal compatibility assessed. METHODS: Eighty four implant specimens embedded in a polyacetal cylinder as simulated bone loss 3 mm from platform. Three used determine endurance limit. other subdivided into...

Objective: This study was aimed to compare the wear of four types ceramic dental materials with different surface treatments.&#x0D; Material and Methods: Porcelain (low-fusing feldspathic, monolithic zirconia, lithium disilicate glass, leucite glass-ceramic) samples (9 x 3 mm) were prepared treatments (glazed mechanical polished). Samples mechanically loaded in a chewing simulator (600.000 cyles 50N) 64 teeth used simulate as antagonist. To evaluate before after test, scanned by 3D scanner,...