Simply find a dental surgery that's convenient for you, whether it's near your home or work, and phone them to see if there are any appointments available.
Dental surgeries will not always have the capacity to take on new NHS patients - you may have to join a waiting list, look for a different dentist who is taking on new NHS patients, or be seen privately.
Once you find a dental surgery, you may have to fill in a registration form at your first visit, which is purely to add you to their patient database. However, that does not mean you have guaranteed access to an NHS dental appointment in the future.
If after contacting several dental surgeries you still cannot find a dentist accepting NHS patients, call NHS England's Customer Contact Centre on 0300 311 2233.