Australian Dental Council (ADC) Practice Test

The primary benefit of a lingual plate in dental prosthetics is increased retention. A lingual plate is a structural component that extends along the tongue side (lingual aspect) of the dental arch. This design helps to provide stability and grip to the prosthesis, ensuring that it remains securely in place during function.

By covering a larger surface area and creating additional contact with the residual ridge, the lingual plate minimizes movement and displacement of the prosthesis, which is particularly important in cases where there may be soft tissue or bony changes. In addition, the design can help distribute masticatory forces evenly, further enhancing the retention of the prosthetic device.

While aesthetics, comfort, and oral hygiene are important considerations in dental prosthetics, the specific function of the lingual plate primarily focuses on improving the retention of the prosthesis, thereby enhancing its effectiveness and usability for the patient.