What is a key function of type III glass ionomer cement in dental procedures?

Type III glass ionomer cement is primarily known for its role as a versatile material in dental procedures. One of its key functions is serving as a liner and bonding agent. This type of cement contains components that enable it to bond chemically to both tooth structure and restorative materials. When used as a liner, it helps to protect the pulp of the tooth from thermal shock and bacterial infection, while also providing a suitable base for further restoration.

In addition to its protective qualities, type III glass ionomer cement releases fluoride, which can aid in the remineralization of the tooth and help prevent caries progression. Its ability to bond and its release of fluoride make it an effective choice as a liner and bonding material in various restorative contexts. Understanding these properties highlights why it is specifically beneficial for those applications compared to other types of cement that may serve different purposes, such as permanent cementation or temporary coverage.