BACKGROUND AND OBJECTIVES Acrylic resin ruled the dental profession for 60 years, and this success is attributed to its aesthetics, handling properties, physical and biological compatibility, its stability in oral environment and its cost effectiveness. The objective of this study is to evaluate and compare the bond strength of acrylic resin teeth treated with various conditioning materials lik...

STATEMENT OF PROBLEM Poor wettability of denture relining materials may lead to retention problems and patient discomfort. PURPOSE Purpose of this study is to compare and evaluate wettability of nine denture relining materials using contact angle measurements under air and water storage over time. MATERIAL AND METHODS Nine denture relining materials were investigated in this study. Two heat...

The aim of the study was to investigate the flexural and impact strength of 3 commercially available denture base resins after reinforcing them with single walled carbon nanotubes (SWCNT’S). Each acrylic resin was first solubilised in Tetrahydrofuran (THF) and then carbon nanotubes were added in different percentages respectively. A total of 50 specimens were made from each material (Eclipse, T...

Background: Diamond burs are recommended for grinding enamel and they are available in different grid sizes, therefore the aim of this study was to evaluate the effect of beveling with 4 different grid size diamond fissure bur s on shear bond strength of light cured composite resin. Materials and Methods: Forty extracted anterior teeth were sectioned at the level of cervical line. The crowns we...

The purpose of this study was to evaluate the shear bond strength of two resin composites around different types of fiber posts. Twenty post specimens were prepared for three types of fiber posts. Posts were embedded in acrylic resin blocks with half of the post diameter exposed. The exposed portions of the posts were successively ground with silicon carbide paper until flattened flush with the...

Background The purpose of this study was to compare the displacement tooth arrangement in dentures fabricated by additive manufacturing (AM) and heat curing. Methods Three-dimensional (3D) scanning performed for edentulous jaw models. After teeth were arranged, 3D wax denture performed. Heat-cured with heat-cure polymer resin. Based on data obtained subtracting model from data, AM ultraviolet-c...

Five combinations of materials commonly used for intermaxillary records in cases of bilateral free end saddle were evaluated: acrylic resin base + wax; acrylic resin base + wax + ZOE paste; acrylic resin base + wax + Duralay resin; condensation silicone; and acrylic resin plate + irreversible hydrocolloid. The materials were evaluated by measuring the vertical distance between pairs of referenc...

Aim: To find out the effect of monomer application for different time periods on tensile bond strength heat cured denture base resin and acrylic teeth. Methodology: Ninety specimens were fabricated as per ADA standards No 15 divided into 3 groups through purposive sampling technique. In Group 1 was applied teeth just before material packed. 2 10 seconds in 60 seconds. Universal testing machine ...

PURPOSE The aim of this study was to compare the color stability, water sorption and cytotoxicity of thermoplastic acrylic resin for the non-metal clasp dentures to those of thermoplastic polyamide and conventional heat-polymerized denture base resins. MATERIALS AND METHODS Three types of denture base resin, which are conventional heat-polymerized acrylic resin (Paladent 20), thermoplastic po...