droped sys object

Hi,

we have dropped some sys objects accidentally, we are getting the following error,could someone help on this ,

SQL> select * from recycle_bin;
select * from recycle_bin
              *
ERROR at line 1:
ORA-00942: table or view does not exist

SQL> select * from recyclebin;
select * from recyclebin
              *
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-00942: table or view does not exist

AERT LOG:ORA-28 : opiodr aborting process unknown ospid (17733_1)

We stiill have the backup to restore but it will consume time,is there anyother way that we can recover it.pl help urgent