What could indicate the presence of peri-implant diseases?

The presence of peri-implant diseases is characterized by clinical signs such as inflammation, which manifests as swelling and redness around the implant site. These signs indicate an inflammatory response, often due to infection or inadequate oral hygiene. Peri-implant diseases can include peri-implant mucositis, which is reversible inflammation of the soft tissues, and peri-implantitis, which involves inflammation and loss of supporting bone. Therefore, the observation of swelling and redness directly correlates with the diagnosis of peri-implant diseases and highlights the importance of regular monitoring for these clinical signs in patients with implants.

The other options do not directly indicate the presence of peri-implant diseases. The failure of the implant to bond with bone relates more to osseointegration issues rather than the presence of disease. Positive aesthetic outcomes usually suggest successful implant placement and integration, while strong occlusal forces might contribute to mechanical issues, but do not specifically indicate inflammatory conditions.