Typo3 provides a nice feature, to specify a speaking page title, not only for search engine optimization, and a separate short and pregnant alternative navigation title.
As a result, one often ends up with page titles that do not fit in the page tree column of the Typo3 backend.
Since Typo3 4.2, there is a new configuration to fix this by using the alternative navigation title for the backend page tree as well.
Just add the following configuration to your backend users or — event better — backend user group TS Config:
# Use alternativ navigation titel in TYPO3 backend page tree
options.pageTree.showNavTitle = 1
There you go…