A zygomatic implant for supporting a dental bridge is provided. The zygomatic implant has a stem with a longitudinal axis having a threaded apical portion, an intermediate portion, and a neck portion having a seat for attachment of an abutment. The zygomatic implant has a head with a polygonal cross section that protrudes atop the neck portion, and two internal threads, each having an axis orthogonal to the longitudinal axis of the stem and a mouth located on a lateral wall of the stem. The two internal threads are arranged longitudinally offset along the longitudinal axis of the stem.