Dental Materials Commons^™

Bioactive Resin-Based Composites For Direct Posterior Restorations: A Contemporary Narrative Review, Ruaa Neamah Muslim, Ghadeer Shakir Shabaa, Wasan Abdulridha Hasan

Maaen Journal for Medical Sciences

Background and Rationale: Failure of dental restorations due to secondary caries remains one of the common problems in restorative dentistry. In order to solve the shortcomings of conventional bioinert materials, bioactive composite resins have recently been developed, allowing fluoride, calcium, and phosphate ion delivery as well as reducing the acidic activity of biofilm.

Aim of the Review: This literature review evaluates chemistry, mechanisms of action, clinical effectiveness, and physical handling properties of resin-based bioactive materials used for direct posterior restoration in permanent dentition.

Material Categories Examined: This literature review includes such material categories as resin-modified glass ionomers, S-PRG-giomers …

Shore A Hardness And Fourier Transform Infrared Spectrophotometer Analysis Of Thymol-Modified Maxillofacial Silicone Material, Manar Hussein Ramadhan, Faiza M. Abdul-Ameer

Maaen Journal for Medical Sciences

The longevity of any prosthesis depends on the materials from which it was fabricated, which is why defects in the material properties may reduce the service life of the prosthesis and necessitate its replacement. This study aims to test the influence of incorporating different weight percentages of thymol micro-powder into the maxillofacial silicone matrix on Shore A hardness of the silicone. Room-temperature vulcanised VST-50 maxillofacial silicone was used to prepare the study specimens. Thymol micro-powder was incorporated into the silicone matrix in two percentages (0.75 wt.% and 1 wt.%). 30 specimens were prepared and then subdivided equally into three groups, …