The Precision of All-on-Four Implant Position Recorded from Three Different CBCT Machines.

Objective:  To investigate the dimensional discrepancy and degree of deviation of All-on-Four implant position between different cone-beam computed tomography (CBCT) machines.

Materials And Methods:  Four implants (4.5 × 10 mm Superline II, Dentium, South Korea) were placed in an All-on-Four style in an artificial mandible.