Acrylic Lower PartialAcrylic Partials are dentures, as with Cast Partials, that replace missing teeth between natural teeth. This type of appliance is usually used as a temporary replacement while the gums resorb after surgery or recent tooth extractions. Patients with compromised teeth use this as a ideal alternative. This type of plate is less expensive but more likely to fracture. These partials are typically a little thicker, bulky, and have no major connector made of cast metal.