Did you have the four front teeth added to the lower denture at the time of extraction, or does the denture not sit near the extraction site?
If the denture does not sit near the extraction site, then I can see no problem at all in wearing it. Even if you have had the front teeth added to the denture already, as long as the denture is not painful when you wear it, then you will not do any harm to either the sockets or the sutures. If anything, the newly added teeth will help protect the healing sockets. Keep rinsing your mouth with warm salty water, and all should settle very quickly!