Disk defragmenter is not beneificial to SSD.
I know that...
I installed the program to defragment my other disk drives that are not Flash/SSD.
A few defrags is nothing to worry about.
Run the Intel Solid-State Drive Toolbox (Ver 1.3) and click Check SMART Attributes.
Look at Media Wearout Indicator. It will probably be normalized to the high 90's which means like new.