The thickness of the removable partial denture base is as follows: 1. Plastic bases were commonly used in clinical practice before, with a thickness of about 2-2.5mm, but the chance of plastic bases breaking is relatively high; 2. Most of the bases now use a combination of metal and plastic bases, metal bases are also known as metal plates, mostly used in the palatal roof of the maxilla and the lingual side of the mandible, which can be relatively made very thin, so the patient will feel better when wearing them, of which Patients who have worn removable partial denture may have this feeling, the thinner the base, the better the comfort and the faster the patient adapts, so nowadays it is mostly recommended that Patients with multiple missing teeth may be able to adapt to the removable partial denture in a short period of time, and they will also feel more comfortable wearing it.