Objectives: To evaluate the microhardness and flexural strength of printed conventionally produced denture base acrylic resins. Methods: A total 32 parallelepiped specimens (64×10×3.3 mm) were manufactured using two light-cured resins suitable for 3D printing (V-Print Dentbase Denture 3D+) heat-cured conventional production (Probase Hot Villacryl Rapid) (n=8). After 24-h storage in water, Knoop...

Objective This study evaluated the flexural strengths of reinforced denture base resins subjected to long-term water immersion. Materials and methods Acrylic denture base resin reinforced with metal wire or glass fiber-reinforced composite (FRC), and without reinforcement were tested. Bar-shaped specimens were fabricated. Half of the specimens were stored in 37 °C distilled water for 50 hours (...

statement of the problem: candida species are believed to play an important role in initiation and progression of denture stomatitis. the type of the denture material also influences the adhesion of candida and development of stomatitis. purpose: the aim of this study was comparing the adherence of candida albicans to the conventional and injection molding acrylic denture base materials. materi...

this study aimed to evaluate the cellular toxicity of two newly-released acrylic resins (futura gen and gc reline hard) in comparison with the conventional heat-cure resin (meliodent).sample discs from each acrylic resin were placed in 24-well culture plates along with l929 mouse fibroblast cell line. a mixture of the rpmi 1640 medium, antibiotics and 10% fbs was added to the plates and the spe...

Denture stomatitis, a common oral disease, can induce pathologic changes to the denture-bearing tissues. These tissue changes can vary from localized hyperemia to diffused erythema to papillary hyperplasia [1,2]. Patients with severe denture stomatitis may experience pain, itching, and/or burning sensation [3-5]. Studies have shown that the prevalence of denture stomatitis in the edentulous pop...

Objectives: To evaluate the effect of ethanol solutions as post-polymerization treatment on the shear bond strength and the surface free energy of acrylic reline resins. Methods: Three reline resins (Kooliner, Ufi Gel Hard and Probase Cold) were manipulated and attached to 150 parallelepipeds denture base resin previously aged. Constructed specimens of each resin were randomly divided into cont...

OBJECTIVE Chemical solutions have been widely used for disinfection of dentures, but their effect on color stability of denture tooth acrylic resins after repeated procedures is still unclear. The aim of this in vitro study was to evaluate whether repeated cycles of chemical disinfectants affected the color stability of two denture tooth acrylic resins. MATERIAL AND METHODS Sixty disc-shaped ...

STATEMENT OF PROBLEM Hard denture acrylic resins must maintain color stability to remain esthetic. PURPOSE The purpose of this in vitro study was to measure the color stability of denture resins subjected to staining agents and cleaned with denture cleansers MATERIAL AND METHODS Forty-five disks (10-mm diameter, 2-mm thick) fabricated from 3 denture resins (light polymerized Eclipse; heat p...

Resistance to impact fracture and high flexural strength are desirable properties of denture base acrylics. The purpose of this laboratory study was to determine the Izod impact strength, the flexural strength, the flexural modulus, and the yield distance for four premium denture resins. Bar specimens 86 x 11 x 3 mm of Lucitone 199, Fricke Hi-I, ProBase Hot, and Sledgehammer Maxipack were fabri...

Objectives: To compare the bond strength of printed and conventionally produced denture base resins to reline after being submitted a physical-chemical aging process. Methods: Sixty specimens (10×10×3.3 mm) two (V-Print Dentbase Denture 3D+) one (Probase Hot) were relined with acrylic resins: Ufi Gel Hard C Probase Cold (n=10). The 1000 cycles thermal fluctuations (5-55ºC) 28 days pH using pH=3...