Table of contentsIntroductionWax upConclusionIntroductionThe smile can assess and reflect one's personality, a big smile can help some people gain self-confidence when they speak, smile or even laugh in public. In order to get a positive result, you must have good communication with the laboratory and the patient. One way to communicate with the patient and the laboratory is to provide the patient with solid equipment that they can feel, try to see the expected result of the treatment and for the dentist to evaluate the position, midline, phonetics and aesthetic. etc. ALL of this can be done by doing a wax up and a mock-up. Say no to plagiarism. Get a tailor-made essay on “Why violent video games should not be banned”?Get an original essayNowadays, digital tools make it easier to plan the procedure, allowing you to virtually assess, draw the smile and to communicate with your laboratory technician and has many advantages. by direct contact with the technician without the support which is the digital tool like the evaluation of the patient's teeth, and it supports the analysis of the gum, smile and face through drawing lines. Waxing by carefully listening to the patient's expectations and concerns can help you plan the designed smile and convey the information to the ceramist to facilitate waxing the teeth. What is wax-up? It is “the action of applying wax to the model in order to carry out a procedural simulation and an evaluation of the final result”. Why do diagnostic wax-up? Basically, to visualize and evaluate the result before carrying out permanent preparation on the natural tooth. The natural color of the teeth should be very close so that the patient can easily understand it and the dentist's assessment. The anatomy and projection of the patient's teeth must be resampled. .Correction of midline, occlusion or even length/width ratio. If the clinical crown is small, we can add wax either at the cervical level or in the incisal edge in order to correct the length of the crown depending on the case if the clinician has decided to do so. at the cervical level, this means that we must carry out a surgical lengthening of the crown or a gingivectomy depending on the case. It is essentially a trial smile allowing the clinician and patient to visualize the final result in the patient's mouth without preparing the tooth and it serves as a guide in restorative treatment. and it has another name BFEP “glued functional aesthetic prototype”. Materials and techniques for making models: We can use flowable composite resin material. Protemp TM with specific shade. Acrylic resin materials. Flowable composite up CAD CAM is considered the most beautiful way to make a model in due to its ability to flow, which leads to capturing details of the wax and reflection of light as well as its translucency. In order to create a flowable composite as a mockup, we need to duplicate the wax to create a vacuum tray that we will use later while the composite cures. Nowadays Potemp comes with different shades, its advantage over flowable composite, its ability to set without light curing, so we can make a mockup without duplicating or pouring another casting, we can use just a silicon putty index . Powder and liquid acrylic resin is the only advantage it has over both flowable composite and Protemp TM, it is not expensive, it has the disadvantage of only having one shade.