How to update permalink to match new page title

Hi all,

My permalinks use this structure:

for pages:
www .mydomain.com/page-title

and for posts:
www .mydomain.com/month-year-post-name

Since starting my website last year, I’ve changed my mind about how to present the content of certain pages, i.e. instead of having “the top ten” of XXX, I prefer to simply have the “best of” (i.e. more than ten items in the list).

I’ve changed the page title to reflect this, but have not touched the permalink so as to avoid “page not found” errors.

But is there a way I can rename my permalinks so that they match the new page title without causing problems?

I tried setting up a redirect in cpanel but the old permalink still showed when I viewed the page, don’t know why…

Any suggestions much appreciated.

Thanks