What is the purpose of using soft liners in dentures?

Using soft liners in dentures primarily serves to improve comfort and absorb shock. The material used for soft liners is typically pliable and can conform better to the contours of the gums, reducing friction and creating a more comfortable fit for the wearer. This cushioning effect helps to mitigate pressure points that may arise during chewing or speaking, ultimately enhancing the user's experience with their dentures.

Additionally, the shock-absorbing properties of soft liners come into play during functional activities like biting and grinding food. They can provide a layer of protection that diminishes the impact on the underlying bone and soft tissues, promoting better overall oral health.

While aesthetics, weight, and bacterial prevention are important considerations in denture care and design, they do not specifically relate to the primary function of soft liners. Enhancing the appearance of the dentures is typically addressed through the choice of denture teeth and denture base materials, while the weight adjustment does not generally inform the use of soft liners. Bacterial growth prevention is more relevant to the cleaning protocols and materials used rather than the purpose of soft liners themselves. Thus, the notion of improving comfort and shock absorption stands out as the key reason for their use in denture construction.