T The biometric design assists the operator in restoring function and achieving retention in jaws that have undergone alveolar bone resorption. This design utilizes clues or signs contained inside and outside the mouth, for example the position of the incisor papilla which is used as an indication of the position of the anterior teeth, namely incisors, canines and determination of the midline of the palate. Utilizing a biometric design, retention is achieved by printing using individual impression trays made using the average buccopalatal distance from the palatal ridge. The predetermined buccopalatal mean distance is an estimate of the distance before resorption occurs. The purpose of using a biometric printing spoon is to get the edges of the denture wings that will support the cheeks and vice versa, the cheek muscles will press against the base so that retention increases and the base becomes firm. In addition, the biometric design also restores the position of the lips for good aesthetics. In utilizing this biometric guide, the operator still has to pay attention to harmony to suit the patient's facial type and profile.