Before revision: A 2015 Cochrane study found that there was evidence that socket preservation does indeed improve the height and width, compared to extraction without socket preservation but that there is insufficient data to conclude that it decreases implant failures, improves aesthetics, or that one grafting material is any better than another.
After revision: Socket preservation does indeed improve the height and width, compared to extraction without socket preservation , but there is insufficient data to conclude that it decreases implant failures, improves aesthetics, or that one grafting material is any better than another.