Complete dentures are used in patients who have lost all the teeth of one or both arches. The fundamental requirements that a complete denture must satisfy include that it has support, stability and retention. The bone resorption that occurs after the loss of a tooth often makes it difficult to achieve these three basic requirements, particularly in the mandible. Complete dentures are made of acrylic or nylon. The successful acceptance of these prostheses depends basically on the correct reproduction of the patient’s anatomy in the working models and on the interocclusal records that demonstrate the degree of occlusion. Of the esthetic objectives that must be accomplished with a complete denture, achieving a correct vertical occlusal dimension and good lip support is important (26)(38).