Diagnostic wax-ups are a valuable tool to visualize the results of a prosthetic case prior to execution of treatment. It gives both the doctor and patient an accurate view of how the final prosthetic will look. It helps to set realistic expectations of what can be accomplished. They can provide additional visual information in complex cases and allow for the study of occlusal relationships. Diagnostic wax-ups can also be used to determine if the current treatment should be pursued farther.