BruxZir Â® Anterior is the latest advancement in the BruxZir Solid Zirconia product line. This highly esthetic restorative material is designed specifically to satisfy the esthetic and functional requirements of the anterior region of the mouth.ruxZir Â® Anterior is the latest advancement in the BruxZir Solid Zirconia product line. This highly esthetic restorative material is designed specifically to satisfy the esthetic and functional requirements of the anterior region of the mouth.
Ancient myths and legends tell of several mysterious underground cities filled with secret chambers, passages shrines and tombs. Many of these remarkable underground worlds remain shrouded in mystery because we have not been able to locate them yet.
Burial niches line the tunnel walls of Rome's Catacombs of San Callisto. Rome's Via Appia Antica is lined by vast systems of underground tunnels where ancient Christians would bury their dead. A map of the St. Calixtus catacombs tunnels, which strech nine miles over four levels and 90 acres. (Photo courtesy of Notre Dame Architecture Library) Burials were forbidden within the city walls of ancient Rome as early as the 5th century BC.