OPG
OPG is an abbreviation for:
- Ontario Power Generation , a publicly traded power company wholly owned by the Ontario provincial government
- Orthopantomography , an orthopantomogram (or colloquially OPG), a procedure originally introduced by the Palomex company, Finland and so-called by the manufacturer for a dental x-ray
- Osteoprotegerin , a protein that is expressed by osteoblasts and, as an antagonist for RANKL, inhibits bone resorption