Aesthetic restorative dentist is necessary to master the principles of restoration, but the patient should not go beyond this principle to put forward the requirements that the doctor can not achieve, the patient and the doctor share this principle, I think the doctor patient communication will be much easier. 1, as far as possible to meet the needs of the patient: medical aesthetic design is a “commissioned behavior”, where the importance of this concept lies in the patient’s views and ideas on the final result, that is, more willing to meet the patient’s real needs, so that the patient can be fully accepted psychologically and consciously. But it must be clear that the perfect design and creation technique is actually a continuous and serious challenge for the doctor, and it is because of such an act that the patient can be better convinced of the doctor’s technique, which is of course the best way to be able to guide the patient and address the patient’s needs for cosmetic dentistry at the root. Of course, both the doctor and the patient should have the right attitude, that is, to avoid thinking under the role of too eager to get what they want. 2. Maintain the coordination of the long axis of the plane: aesthetically speaking, the plane is the basis for maintaining a balanced environment and effect, and the occlusal plane of the smile is perpendicular to the long axis of the face, so the standard concept should be that the long axis of the face is perpendicular to the pupillary line and the occlusal plane is parallel to the pupillary line. However, many patients have facial asymmetry, which alters this relationship. Observe the patient by having the patient sit up straight, preferably in a chair with a backrest, with the patient’s hair gathered back to expose the temples and ears. Imagine an oval around the entire face, then cut the oval in half from it and use an occlusal stick to record the final occlusal plane, which will be used as an important part of the diagnostic process when fabricating the restoration. Planes and Long Axis Aesthetically speaking, the planes are the basis for maintaining the balance of the result, and the occlusal planes are presented perpendicular to the long axis of the face. Therefore, the aesthetic design begins with the determination of the plane and long axis, and the best way to determine the plane is that the occlusal plane should be parallel to the pupillary line and then divided longitudinally according to the elliptical shape of the face. The vertical of the long axis of the face is better determined and transmitted, but the occlusal plane is more difficult, especially after the abutment preparation, and the depth of the gingival row will not be uniform, so it is difficult for the technician to master. Clinically, you can use an anatomical type of facial fork of the fitting frame, if not, use a quill or resin brush instead. 3, symmetry principle: Although it is difficult to obtain a completely accurate mirror effect on the human face and teeth because of the developmental relationship, but almost close to symmetry can also form a natural appearance, so a relatively smooth arch (face and teeth) can provide the appropriate framework structure, so as to form a smooth transition between each individual tooth (this is why in cosmetic dentistry to obtain the best results usually requires orthodontic, periodontal and restorative and other comprehensive series of treatment, periodontal and restorative treatment).