What is Type one of glass ionomer cement primarily used for?

Type one glass ionomer cement is primarily used for the cementation of metal restorations due to its desirable properties that suit this application. This type of glass ionomer has excellent adhesive properties, allowing it to bond effectively to both metal surfaces and tooth structure. Additionally, it releases fluoride ions, which can help in the prevention of secondary caries around the margins of restorations. The setting characteristics of Type one glass ionomer cement also make it an ideal choice for providing a stable and durable bond for metal restorations, ensuring long-term functionality and support.

In contrast, the other options involve applications that are better suited for other materials or types of glass ionomer cements. For instance, while glass ionomer cements can be used in various restorations and procedures, Type one specifically is targeted towards cementation tasks rather than restorative fillings, orthodontic bonding, or addressing erosion directly.