Trbakovic A, et al. - Researchers studied the long-term function of narrow diameter implants (NDI:s) and whether reduced implant-tooth distance negatively impacts adjacent teeth. All implants, at the time of the follow-up had a good function, and implant survival of group I and II together was 97.2%. Discoloration and regression of the buccal gingiva were main concerns in both the groups. In accordance to standard diameter studies, survival of implants was noted. Nonetheless, the placement of most implants was very close to the adjacent teeth, no pathologies could be linked to this except aesthetic concerns.