Should you attempt to artificially create an undercut on a tooth by modifying its surface?

Creating an artificial undercut on a tooth by modifying its surface is generally discouraged for several reasons. Though some might presume that it could enhance the retention of a removable partial denture, the reality is that artificially creating an undercut can lead to issues such as compromised tooth structure and function. This procedure can also pose practical challenges.

When engaging in dental modifications, preserving the natural anatomy and health of the tooth is imperative. Altering the tooth’s surface may introduce potential risks, including the exposure of dentin to the oral environment, which could lead to sensitivity or decay. Furthermore, it can disrupt the natural occlusion or alignment of teeth. Rather than attempting to create an undercut, practitioners should focus on utilizing design elements of the denture and properly fitting components that work with the existing tooth structures to achieve optimal retention and comfort.

Retaining the natural features of the tooth, along with adhering to established guidelines and techniques, ensures a more predictable outcome in RPD fabrication and wear, emphasizing the importance of practicality and the preservation of tooth health.