Dentist finally pulled my last ones and then waited about 3 weeks to take the 1st impression. Went back several times for more impressions and when I asked him why it was taking so long as I had heard of many people getting their new teeth is a very short time, some even the same day. He told me that he was making mine to be worn not stuffed in the dresser drawer. Must have take him 6 or 8 weeks to finish them and I have been wearing them for the past 22 years. Went back one time after wearing them for a couple of days. He made a small adjustment and that was it. They still fit good and have never had them relined.