When is a core buildup typically placed on a tooth?

A core buildup is typically placed on a tooth when there is very little crown structure left to support a restoration, especially after a root canal treatment. In such cases, the core buildup material is used to rebuild the structure of the tooth so that a crown can be effectively placed on top. This procedure is crucial for restoring function and aesthetics to teeth that have lost substantial structure due to decay, trauma, or previous restorations.

The scenario described in the selected answer highlights the importance of maintaining enough tooth structure to ensure that restorative materials adhere properly and provide the necessary support for a crown. If a tooth is vital but has minimal remaining structure, it is essential to use a core buildup to ensure a successful restoration.

In contrast, placing a core buildup is not primarily indicated for a tooth that has a cavity present, as the primary course of action involves treating the cavity itself first. Additionally, if a tooth is not vital, other considerations may predominate, such as extraction or more extensive restorative procedures, and significant gum recession, while it can compromise periodontal health, does not directly necessitate a core buildup on its own. The context of minimal crown structure remaining in a vital tooth reinforces the rationale for performing a core buildup in that scenario.