Hi,
1. Backup those 3 Dirty shutdown edb's.
2. eseutil /p databasefilename to repair the database.
3. eseutil /d datbasefilename to defrag the database.
4. Run isinteg -s servername -fix -test alltests
Steps 2, 3 and 4 needs to run on each dirty-shutdown databases.
Hope this helps,
Shree