This study investigated temperature rises caused by different light curing units (LCUs) in dentin of thicknesses. The LCUs tested this were namely: quartz-tungsten-halogen (QTH) (Heliolux DLX) LCU, plasma arc (PAC) (Apollo 95E Elite) and emitting diode (LED) (Mini LED) standard mode as well pulse soft-start modes. One hundred forty disks 0.5, 1, 1.5, 2 mm thickness prepared from mandibular molars (n=7). Temperatures recorded using a L-type thermocouple direct contact with the guide tip. For...

The objective of this study was to determine whether the addition different types boron (Borax, Boric Acid and Colemanite) polymethyl methacrylate denture base resin would improve flexural impact strengths, surface hardness methacrylate.Borax, acid, Colemanite were added heat polymerized specimens prepared for strength (65x10x2.5 mm), (50x6x4 (20x6x4 mm) tests according manufacturers' instructions (n=10). To specimens, they loaded until failure on a universal testing machine using three...

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 study compared shear bond strength and type of failure between a highly cross-linked tooth different denture base polymers.Cross-linked teeth were bonded to either heat-, an auto-, microwave-polymerized resin or relatively new injection-molded, microwave-polymerizable polyurethane-based resin. Six experimental groups established for each the peel tests. In four groups, used as received resins; in remaining two they treated with dichloromethane determine its effect on bonding heat...

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...

Abstract This study was conducted to determine the reinforcement effect of five types esthetic fibers on tensile properties a conventional denture base resin. E‐glass, polyester, rayon, nylon 6, and 6/6 were cut into 2, 4, 6 mm lengths added resin randomly at concentration 3% by weight. For each formulation, specimens, as well control specimens without fibers, prepared in dumbbell shape using stainless steel mold, constructed according ASTM Standard D638 M ‐91a. Tensile evaluated universal...

Probiotic microorganisms can release bioactive substances that inhibit the growth and biofilm formation of pathogenic such as Streptococcus mutans. Dental caries is a multi-factorial chronic infection disease, which starts with bacterial caused mainly by S. This study investigated characteristics Lactobacillus spp. strains an oral probiotic. Twelve species obtained from fermented milk dairy products were identified. Antimicrobial activity was determined Minimum Inhibition Concentration...

This study determined the changes in water sorption property of a denture base resin reinforced with five types fibre. E-glass, polyester, rayon, nylon 6 and 6/6 fibres were cut into 2, 4 or mm lengths, added at 3 wt-%. Fifteen specimens prepared for each length reinforcing fibres, control without fibre, using mould 10 × 2 dimensions. Water test was performed according to ISO Specification 1567:1999 immersion periods 1 day, week weeks (n=5). Results showed that profiles all groups time...

Abstract This study compared tensile bond strengths between conventional compression-molded heat (HC)-, auto (AP)-, and microwave-polymerized (MC) poly(methyl methacrylate)-based denture resins a relatively new injection-molded, polyurethane based resin (MI) bonded to highly cross-linked tooth. In the first part of experiments, teeth were used as received. second part, they treated with dichloromethane see its effect on bonding bases (HCS APS). Bond strength was tested in tension according...

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....

Patau sendromu (trizomi 13) multipl organ sistem anomalileri ile seyreden bir kromozomal sendromdur. En sik bulgulari kraniyofasyal ve kardiyak anomalilerdir. sendromlu olgular anesteziyologlar acisindan, hava yolu kontrolunun guclugu, pozisyon vermede zorluk, agir olgularda sivi tedavisinin duzenlenmesinde gucluk gibi sorunlar nedeni ozelliklidir. 2 aylik kiz hastaya konjenital katarakt acil cerrahi operasyon uygulandi. on tanisi izlenen hastada ASD, VSD, dekstrokardi, hafif mikrognati...

Di hekimli inde estetik gereksinimler hastalar n duygu ve du unceleriyle direk ilgilidir. Estetik yakla mlar protetik tedavide ozellikle sabit rehabilitasyonlar icin oncelik ta sa da bugun hareketli bolumlu protezler de aynolu turmaktad r. lanmas nda di secimi, dizimi, yapay lerin yuz ekliyle uygunlu u gibi faktorlerin etkili oldu bilinmektedir. Bununla birlikte bu protezlerin yap sal unsurlar aras esteti i olumsuz yonde etkileyen en onemlisi kro e sistemleridir. gereksinimleri kar lamasgeli...

Amac: Bu cal man n amacmandibular alveolar kret olculerinin stabilitesinin uc boyutlu bir olcum yontemiyle de erlendirilmesidir. Gerec ve Yontem: mada 14 di siz hastadan al nan olculer kullan ld . Hastalar iki gruba ayr Son olcu maddesi olarak birinci grupta cinko-oksid ojenol (ZOE), ikinci polivinilsiloksan (PVS) larak olculerden ana modeller elde edildi. Ana uzerinden modifiye ahsi ka k haz rlanarak hastalardan alc s ile yeniden nd Elde edilen uzerinde r cizgileri tahmini cizildi alveol...

Purpose: In the present work we aimed to investigate how Bruxism caused masseter muscle pains when patients chewed hard substances such as hazelnut and this pain affected their maximum clenching functions by using electromyografic (EMG) techniques. Material Methods: Two groups of individuals, with without Bruxism, were investigated. All individuals allowed use right side jaw . Pain in muscles was measured according visual analog scala (VAS). The instructed perform two types functions,...

Objective: It was aimed to use herbal alternatives in minimizing the oral pathogen floras of patients using removable denture. Method: Aantimicrobial activities green tea, mint, and clove extracts on various concentrations significant pathogens Streptococcus mutans, Staphylococcus aureus, Enterococcos fecealis were examined. Moreover, inhibition effects most effective extracts, which selected by examining in-vivo study findings, flora individuals denture compared with chlorhexidine control...