Interface between periodontal tissues and dental materials: Dynamic changes and challenges

Biological differences between natural tooth and dental implant. All the above evidence demonstrates how periodontal health and dental restorations are closely related. Periodontal health is essential for the proper functioning of all restorations, while functional stimulation due to dental restorations is necessary for periodontal protection. Coronal fillings with incorrect occlusal modeling, oversized proximally or on the vestibular surfaces, or with poor interproximal contact, negatively impact the healthy periodontium and establish an additional irritation source for the periodontium already affected by the disease. In this regard, it is essential to underline how the periodontium must remain healthy for the restorations to last for a long time, so that the teeth are maintained. This Special Issue will provide information on the dynamic changes and challenges at the interface of biomaterials and dental technologies, aiming to improve dental treatment options and dental care. To maintain or enhance the patient’s aesthetic appearance, the tooth/tissue interface must possess a healthy and natural appearance, with gingival tissues surrounding the Coatings 2021, 11, 485 4 of 5 properly restored teeth. For the periodontium to remain healthy, it is essential that the restoration is regularly and adequately performed to respect the periodontal tissues with a highly harmonious relationship that allows to preserve the oral tissues, the restoration itself, and the long-term clinical and biological success of the therapy.