Long-term denture wear may appear gingivitis, temporomandibular joint disorder and other diseases, and may also induce dental caries. 1. Gingivitis, long-term wearing dentures in the process of removing may cause irritation to the gum tissue, resulting in mucous membrane redness, swelling and ulceration, inducing gingivitis. 2. Temporomandibular joint disorder, if the denture occlusal relationship is abnormal, it may lead to occlusal trauma, which will affect the normal occlusal function and induce temporomandibular joint disorder. 3. Dental caries, long-term denture wear, if not properly cleaned, food inclusions may occur, it is easier to appear caries and other diseases. Usually it is best not to wear dentures for a long time, if you need to wear dentures also need to do a good job of usual health care, pay attention to timely cleaning of the oral cavity.