The first day
Because your dentures or partials are new, they may feel large in your mouth, your lips may feel like they're being pushed forward, and you may experience a slight gag reaction. But don't worry. These sensations are to be expected and will go away as your mouth adjusts.
When it's time to eat, take it easy on your mouth. Start off by eating soft foods like fish, eggs, chopped meat, and cooked vegetables. Take small bites, avoid biting with your front teeth and chew slowly.
SPECIAL NOTE: Moving from temporary to permanent dentures.
If you were given immediate dentures or partials as a temporary set, you'll eventually switch to your permanent dentures or partials. There could be another adjustment, but it might not take as long as the first time you started wearing dentures. Why?
For one, your gums will have most likely healed by the time you get your permanent dentures or partials, so you won't experience the fitting difficulties you may have had with your immediate set while your gums healed. Plus, you'll have gone through the process before — and knowing what to expect can make things seem much easier.