Which type of cement is specifically indicated for cases of erosion near the gumline?

Type one glass ionomer cement is specifically indicated for cases of erosion near the gumline because it possesses favorable properties for areas experiencing soft tissue interaction. This type of cement releases fluoride, which can help prevent further decay and supports the remineralization of tooth structure, especially in areas susceptible to erosion or sensitivity due to exposure of dentin.

The adhesive qualities of type one glass ionomer cement allow for a strong bond to both the enamel and dentin, making it an effective choice for restorations in gingival areas. Additionally, its coefficient of thermal expansion is similar to that of natural tooth structure, which can minimize the risk of microleakage and postoperative sensitivity.

In contrast, type two glass ionomer cement is generally used for the restoration of non-load-bearing areas or in more definitive restorations rather than for erosion management specifically. Permanent cement is primarily used for securing crowns and inlays, not for addressing soft tissue issues or erosion. Temporary cement is intended for short-term use, such as during provisional restorations, and would not be suitable for long-term management of erosion near the gumline.