1. The smaller the base teeth are prepared, the more beautiful the porcelain teeth made by the processing plant are.(Of course not unlimited small: ① do not expose pulp, ② should have good retention);

2. The deeper the lip and shoulder of the front teeth, the wider, the better the effect of the restored porcelain teeth;

3. Prepare a 45 degree Angle at the lateral end of the anterior lip to help locate in position and adduction;

4. When preparing the whole mouth porcelain teeth, determine the occlusal height is the key problem, you can prepare the upper and lower teeth on one side first, and then take the jaw pad, and then prepare the other side, let the patient bite according to the height of the jaw pad first, take the other side of the jaw pad. There is a simpler way, is to first retain the occlusal relationship of 6 or 7, take the jaw pad and then prepare the four teeth;

5, if you need to take wax pad to determine the occlusal relationship, wax pad should not be too wide and too thick, as long as it is slightly wider than the jaw, otherwise the gradually hardening wax pad will squeeze the periodontal soft tissue, so it on the model will find early contact in the gums, resulting in error;

6. When taking the impression, you should first use an air gun to blow dry the moisture in the base teeth, especially at the shoulder platform. After adjusting the printing mold, first dip in a small amount of impression with your finger, evenly smear on the base teeth and shoulder platform, and then take the full support, so that the printing mold shoulder platform is clear and accurate, no bubbles;

7. If the porcelain teeth need to be tried for a few days, we will usually use butyric oxygen to temporarily stick it. If the butyric oxygen is less, the crown is very troublesome. If the power of the tooth washer can be adjusted to the maximum, vibration at the lingual gingival edge, it will be easy to remove the porcelain teeth;

8. When the appropriate porcelain teeth are fixed, after removing the excess adhesive, use a probe to peel out a small amount of residual adhesive along the shoulder stage with the subgingival surface, which can reduce the incidence of gingivitis;

9, about the production of temporary crown, there is a very simple method: before preparing teeth, first with the printing mold, but not pouring gypsum, just put in cold water to soak, and then prepare teeth. When making the temporary crown, put the adjusted self-coagulation resin (thin) evenly put into the first impression, put together in the mouth of the patient, after the self-coagulation resin solidification, only a small amount of grinding can be done.(It is the same as the patient's original tooth);

10, temporary crown do not do too beautiful, otherwise patients may not come to wear porcelain teeth, especially those who did not pay the full payment;

In the preparation of teeth, once found a certain point of color change, white, don't grind, and then grind the pulp;

12. Because the gingival end of the porcelain teeth is the weakest, if the gingival end is too long, it is very troublesome to adjust, especially easy to collapse the porcelain! Here to introduce a tip: when adjusting the gingival end, do not wear the metal and porcelain together, first from the part of the porcelain to the direction of the metal, and then adjust the length of the metal, so that the porcelain will not collapse.