I had a subdomain banned from adsense because of some adult related search results. Now that I have completely changed the content, is it possible to submit my url for reapproval?
ya you can try.But you have the possibility to get ti back is 0.99% . usually they won't give you back. i have seen one of my friend got it back that is why i am suggesting you to try it once.
There is very low chance of getting approved again. Just Keep your site clean, and make sure your site has lots of traffic. This might probably make your chances of getting approved.