I was reading on the forums that making your title and description different helps get better traffic from search engines. Does Google read descriptions?
Are these meta descriptions? If so then these should be different to the title and they are very important in google.
Meta description is important for many search engines, also this description shows in serps, so they are important. As said above use different titles and descriptions for each page
Search engines index more than one page of your site so it is possible that many visitors might enter via a deep page in your site. Having the same title and description for all the pages gives a very little chance to get traffic for more specific topics on your site.
make a unique title and description for every pages of your site to have a chance and posibilities to have a good traffic. And to avoid suplemental results.