What consequence can result from a poorly finished margin in dental restorations?

A poorly finished margin in dental restorations can lead to an increased risk of decay. When the margin between the restoration and the natural tooth structure is not properly finished, it can create spaces where plaque and bacteria can accumulate. These areas become more difficult to clean effectively, making it easier for decay to develop as the bacteria produce acids that can demineralize tooth enamel and lead to cavities.

In addition, poorly finished margins can also contribute to microleakage, which refers to the seepage of bacteria, fluids, and other particles into the gap between the restoration and the tooth. This leakage can further compromise the integrity of the restoration and promote decay right at the margin where sealing is crucial for longevity and health.

Therefore, a well-finished margin is integral to the success of dental restorations. It enhances the fit of the restoration, minimizes the potential for decay, ensures better hygiene, and supports overall dental health.