Estimation of cytokine levels in gingival crevicular fluid following the use of different gingival retraction systems in patients requiring fixed partial dentures - An original research.

Unlabelled: Gingival retraction is essential to get a dry and debris free field, which enables the impression material to flow into the gingival sulcus and record the area apical to the finish line. Effective gingival retraction without damaging periodontal tissue is extremely important.

Objective: To comparatively evaluate the amount of inflammation, as assessed by TNF-α in GCF induced by three different gingival retraction techniques.

Effect of Particle Size of Nano-Oxides on Color Stability and Mechanical Properties of Maxillofacial Silicone Elastomers: An In Vitro Study.

Purpose: To evaluate the physical and mechanical properties of maxillofacial silicone elastomers following the incorporation of a specific particle size and concentration of nano-titanium dioxide (TiO) and nano-zinc oxide (ZnO).

Materials And Methods: Nano-TiO and nano-ZnO of 20-nm and 40-nm particle sizes and in 1% and 2% concentrations were chosen. Silicone elastomer samples were prepared according to the manufacturer's recommendations.