Which dental condition can arise from poor marginal fit of a restoration?

The correct answer is that poor marginal fit of a restoration can lead to recurrent caries. When a dental restoration, such as a filling or crown, does not fit properly at the margins, there can be gaps between the tooth structure and the restoration. This allows plaque and bacteria to accumulate, leading to demineralization and ultimately resulting in decay.

Recurrent caries is particularly concerning because it can occur at the interface between the tooth and the restoration, where conventional oral hygiene may not be effective in reaching and cleaning. This is why achieving an ideal marginal fit during any restorative procedure is critical for the long-term success of a restoration and the overall health of the tooth.

While tooth sensitivity, periodontal disease, and occlusal trauma can also be related to various dental issues, they are not directly caused by poor marginal fit in the same way that recurrent caries is. Tooth sensitivity may occur due to exposure of dentin or compromised pulp but isn't specifically tied to the fit of a restoration. Periodontal disease is typically a result of systemic factors, poor oral hygiene, or other external factors rather than the fit of a restoration, and occlusal trauma generally stems from misalignment or excessive biting forces rather than marginal issues.