The field of Dental implants has evolved based on patientâs demand for teeth in one day or immediate teeth. Modern implantology can give patients immediate teeth, which was a dream till a decade back. Today patients can walk into a dental implant center and walk out with a set of fixed teeth on tooth implants.
HBs-Ag is stands for Hepatitis B surface antigen and appears Positive prior to infection, so it is an important indicator of recent infection. HBs antigen If positive indicates  acute HBV infection while liver enzymes elevated. Or chronic HBV infection with enzymes fluctuate.
In immunology, an antigen (Ag) is any structural substance that serves as a target for the receptors of an adaptive immune response, TCR or BCR or its secreted form antibody.he term originally described a structural molecule that binds specifically to an antibody. It expanded to refer to any molecule or a linear molecular fragment that can be recognized by highly variable antigen receptors (B-cell receptor or T-cell receptor) of the adaptive immune system.