C

First verify the centric occlusal contacts. A premature or high contact on the new implant crown can block intercuspation of adjacent teeth, making chewing on that side difficult. Guidelines on implant occlusion emphasize checking and correcting centric contacts before selectively reducing cusps or fossae to avoid over-loading the fixture [Weinberg, 1998, PMID 10196804; Klineberg, 2012, PMID 22506541].