Abstract: Oral soft lining materials are mainly used for removable dentures, which can evenly distribute the functional load of the denture bearing area, regulate the wound tissue under the denture base, improve the retention of internal and external denture. However, its loose and porous structure can easily cause bacteria adhered on the surface, leading to denture stomatitis, material aging and durability degradation. In this paper, the improvement of mechanical properties, adhesive properties, antibacterial properties, cleaning and disinfection and progress of research on new materials are reviewed.

Key words: soft lining materials, mechanical properties, adhesion properties, antibacterial properties, cleaning and disinfection, new materials