The Mestra articulator reproduces mandible movements based on average records obtained from clinical diagnosis. The springs above the condyles allow the maxilla to be moved and then returned to its original position. The Mestra articulator is equipped with removable aluminium bases, enabling it to work with several models at the same time, facilitating pattern waxing. No movement is possible when the condylar screws are tight. The incisal guide has red painted notches as a guide to parallelism. The centre notch indicates that the maxilla is parallel to the occlusal plane. 125mm (w) x 160mm (l) x 130mm (h).