[Effects of metal materials for oral fixation and restoration on magnetic resonance imaging artifacts and the health of tissues around dental implants].

Purpose: To investigate the effects of metal materials for oral fixation and restoration on magnetic resonance imaging artifacts and the health of tissues around dental implants.

Methods: A total of 153 patients undergoing fixed oral restoration were selected from May 2018 to June 2020. They were divided according to the random number table method into group A (cobalt-chromium alloy, n=31), group B (nickel-chromium alloy, n=32), group C (titanium alloy, n=28), group D (pure titanium, n=29) and group E (gold alloy, n=33).