The image shows a display case with a variety of dental instruments on it. On the left side of the display case, there is a model of a mouth with a missing tooth and a dental implant. Next to it, there are two small signs with text that read "Dentures with springs!" and "Smokers beware: These dentures were made by a heavy-duty dental tool. They would look like a mouthguard. They could be used to prevent the spread of the tongue and the lower down. The display case is made of glass and is located in a museum or exhibition space.