Date	Event	Description
8 November 2010	Amended	Minor edit to 'Methods' section.
7 July 2010	New citation required and conclusions have changed	2 new studies included, 3 new studies excluded. 2 authors replied on already included studies and evaluation on their studies changed. Updated search methods, part of analysis, tables. Results and conclusions slightly changed.
7 July 2010	New search has been performed	Searches updated to 02 June 2010.
12 June 2008	Amended	Converted to new review format.
6 November 2007	New citation required and conclusions have changed	Substantive amendment. Title was modified. Primary objective had been divided in two: to test the efficacy of interventions (1) for maintaining and (2) for recovering soft tissue health around implants. Outcome measures were modified (change in probing attachment level (PAL); change in probing pocket depth (PPD); patient satisfaction; treatment time). Four more studies were added. System of bias assessment was simplified. Conclusions were slightly changed.