Luca Nichitean, Mihai Graure and Alexandru Bucur joined the squad ahead of their meeting with Scotland in Lille on Saturday.
Romania have disappointed in the competition, conceding 158 points and scoring eight.
They still have an outside chance of making the quarter-finals and play Fiji on Saturday.
They need to win that game and beat Wales on Oct. 7 to have a chance of a knockout place.
Reporting by Nick Said, editing by Ed OsmondOur Standards: The Thomson Reuters Trust Principles.
Persons:
Eugen Apjok, Gabriel, Taylor Gontineac, Hinckley Vaovasa, Luca Nichitean, Mihai Graure, Alexandru Bucur, Beka Gorgadze, Otari Giorgadze, Nick Said, Ed Osmond
Organizations:
Rugby World, Ireland, Scotland, Saturday, Georgia, Fiji, Wales, Thomson
Locations:
Romania, South Africa, B, Lille