To maintain periodontal health, where should restorations not be overcontoured?

To maintain periodontal health, restorations should not be overcontoured in the gingiva. Overcontouring in this area can lead to plaque accumulation and make it difficult for patients to maintain proper oral hygiene. This can result in inflammation of the gingival tissues, potentially leading to periodontal disease.

Restorations that are well-contoured should follow the natural contours of the tooth and allow for proper gingival health. When restorations are overcontoured, they can interfere with the gingival sulcus and lead to a compromised periodontal environment.

The middle third of the tooth, as well as the functional and non-functional cusps, can be designed for optimal function and esthetics without directly affecting the health of the periodontal tissue as significantly as overcontouring in the gingival area. Therefore, maintaining appropriate contour and contact with the gingiva is crucial for periodontal health.