Oblong Plastic Articulating Mounting Plates, Green, Package of 100. Used to set upper and lower casts. Facilitates dimensionally accurate diagnosis of occlusal condition. Helps in occlusal pretreatment preparation. Disposable. Articulating Mounting Plates from Plasdent sets each of the upper and lower casts for dimensionally accurate diagnosis of the patient's existing occlusal condition. When used with diagnostic wax-up, mounting plates facilitate preparation and occlusal pretreatment.Mounting Plates come in round and oblong shaped disposable plastic variants. Available in 100 per pack.