Translucency and contrast ratio of dimetharcyrlate resin based dental materials after bleaching: an in-vitro study.

Objective: To compare the translucency and contrast ratio of 13 different resin based restorative materials and to evaluate the effect of 2 different bleaching methods on the translucency and contrast ratio of these materials.

Methods: In this study, a total of 260 samples were prepared, 20 from each of 13 different dimethacrylate-based restorative materials. Then, each material group was divided into 4 subgroups.

Effect of carbamide peroxide treatment on the ion release of different dental restorative materials.

Background: To predict the long-term performance of restorative materials in the oral environment, it is important to evaluate their resistance to chemical and mechanical degradation and to know the toxic potential of the type and amount of ions eluted from the filling material. In this study, home bleaching was applied to dental materials with different contents and it was aimed to determine the type and amount of ions released from these materials.

Methods: In this study, amalgam, posterior composite resin, anterior composite resin, bulk fill composite resin, indirect composite resin, hybrid ceramic and all-ceramic were used as restorative materials.

The radiopacity of single-shade composite resins: A comparative evaluation.

Objective: The aim of this study was to evaluate the radiopacity of single-shade composite resins with group and multi-shade composite resins via a digital image analysis.

Materials And Methods: Disc-shaped (5 mm in diameter, 2 mm in thickness) specimens were prepared with one multi-shade (Estelite Sigma Quick-ESQ), four single-shade (Omnichroma-OC, Charisma Topaz One-CTO, Vitra Unique-VU, and ZenChroma-ZC), three group-shade (G-aenial Achord-GA, Optishade-OS, and Estelite Asteria-EA), and one posterior composite resin (Estelite Posterior-EP) (n = 3). A radiographic image of all the specimens, an aluminum step-wedge, and a 2 mm thick tooth section were taken.

Susceptibility to discoloration of dental restorative materials containing dimethacrylate resin after bleaching.

The aim of this study is to compare the susceptibility to discoloration of dental restorative materials containing dimethacrylate resin after bleaching. In this study, resin-modified glass ionomer, polyacid-modified composite resin, giomer, posterior composite resin, anterior composite resin, bulk fill composite resin, flowable bulk fill composite resin, ormocer, indirect composite resin and hybrid ceramics were used as restorative material containing dimethacrylate resin. 20 samples were prepared from each material in accordance with the manufacturer's instructions.

Monomer release from dental restorative materials containing dimethacrylate resin after bleaching.

Objective: The aim of this study is to determine the type and amount of monomer released over time after bleaching was applied to dental restorative materials containing dimethacrylate resin.

Materials And Methods: Thirteen different restorative materials containing dimethacrylate resin were used in this study. Twenty samples were prepared from each material and the samples were randomly divided into 4 subgroups, namely, office bleaching, home bleaching, and separate control group for each of the bleaching methods.