Organosilicon, with its unique chemical stability, biocompatibility and elasticity, has become an indispensable key material in the field of oral healthcare, playing a significant role in diagnosis, restoration, protection and other aspects. 
In the process of taking oral impressions, organosilicon impression materials hold a core position. They have strong fluidity and high forming accuracy, which can precisely replicate the fine structures of teeth and gums, providing a reliable model foundation for denture production and orthodontic appliance design. Compared with traditional materials, organosilicon impressions are less prone to deformation, have controllable setting time, and are non-irritating to the oral mucosa, significantly improving the comfort of diagnosis and treatment and the restoration effect. 
In the restoration treatment, organosilicon soft lining materials bring good news to patients wearing removable dentures. These materials have good elasticity and softness, can fill the gap between the denture and the alveolar ridge, disperse the chewing pressure, reduce mucosal pain and ulcer risks, and at the same time enhance the retention force of the denture, making the wearing more stable and comfortable. In addition, organosilicon is also used to make dentin desensitizers and oral mucosa protectants. By forming a protective film on the tooth or mucosa surface, it alleviates sensitive symptoms and promotes wound healing. 
In the prevention field, silicon-containing anti-caries coatings, with excellent adhesion and saliva-resistant properties, can form a durable protective layer on the tooth surface, inhibit bacterial growth and the formation of dental plaque, providing long-term anti-caries protection for children, the elderly and other people prone to caries. 
With the development of material technology, the application of organosilicon in oral healthcare is constantly expanding, upgrading from functional materials to intelligent and minimally invasive directions, safeguarding oral health and becoming an important force promoting the progress of oral healthcare technology.