301 to remove pages from search engine

I had an error in my code which resulted in my site returning a 200 instead of a 404 on a heap of URLS.

I have since now changes these pages to be a 410.

Do you think its fine to keep these pages as a 410 or should I be trying to 301 these urls back to the correct pages?

I need them to drop out of Google as quick as possible. There are no backlinks behind these pages.

Thanks

 

if nothing link to it it should be fine with a 404. Not sure how fast the sites will removed from the index with gone (410).
http://support.google.com/webmasters/bin/answer.py?hl=en&answer=64033

 

Use 404 or 301 for that pages. You can also remove that pages in Google Webmaster Tools if you care.