Which dental material is used to securely hold inlays, crowns, bridges, and orthodontic appliances in place?

The correct choice, cement, is a specialized dental material that serves the crucial purpose of securely bonding various dental restorations, such as inlays, crowns, bridges, and orthodontic appliances, to the underlying tooth structure. Dental cements possess specific properties that make them ideal for this task; they can provide both adhesion and a seal to protect the tooth beneath.

Cement helps to fill any gaps between the restoration and the tooth structure, aiding in the longevity of the restoration by preventing bacteria from infiltrating the area. It's designed to withstand the forces of chewing and is formulated to work in conjunction with the various materials used for restorations, ensuring that they remain firmly in place throughout their intended lifespan.

While adhesives are also used in dentistry, their primary function often differs from that of cement. They are generally employed for bonding dental materials to tooth structure or to each other in smaller scales and specific applications. Similarly, composite and resin materials are primarily used for filling cavities or creating restorations themselves rather than securing existing appliances in place.