The use of rubber in dentistry can be traced back to the mid-1800s when vulcanized rubber was first used to make dentures. However, the modern concept of a dental plate made from rubberized acrylic resin, also known as a 'dental appliance,' was developed in the 1950s.
Dental plates are custom-made to fit the mouth and are used to treat a variety of dental conditions, including missing teeth, misaligned teeth, and sleep apnea. They are made by taking an impression of the patient's mouth, which is then used to create a model. The model is used to make a negative mold, which is then used to create a positive mold. The positive mold is used to make the dental appliance, which is typically made from a rubberized acrylic resin.
Dentures, also known as false teeth, are prosthetic devices that are used to replace missing teeth. The first dentures were made in ancient civilizations, using materials such as gold, ivory, and human or animal teeth. The first recorded use of dentures was in ancient Egypt, where they were made from a variety of materials including gold, ivory, and human teeth.

In the 18th and 19th centuries, dentures were typically made from porcelain or animal teeth set in a base of ivory or bone. In the mid-1800s, vulcanized rubber was introduced as a material for making dentures, and this allowed for the creation of more comfortable and durable dentures.
Dental plates have many advantages over traditional dentures, including a better fit, improved comfort, and a more natural appearance. They are also more durable and easier to clean than traditional dentures.
Today, dentures are typically made from acrylic resin or a combination of acrylic resin and other materials. The process of making dentures involves taking an impression of the patient's mouth, which is then used to create a model. The model is used to make a negative mold, which is then used to create a positive mold. The positive mold is used to make the dentures, which are custom-fitted to the patient's mouth. The process of making dentures can be done by a dentist or a dental technician.