Evaluation of Marginal Bone Loss and Associated Factors Around Ziacom Dental Implants With Different Prosthetic Connection

Inclusion Criteria: * One missing tooth in the premolar or molar area with both opposing and adjacent teeth (mesial and distal). Exclusion Criteria: * One-stage bone augmentation. * Uncontrolled type 1 or 2 diabetes (HgA1c\>8). * Known auto-immune or inflammatory disease. * Severe hematologic disorders, such as hemophilia or leukemia. * Local or systemic infection that may compromise normal healing (e.g., extensive periapical pathology). * Liver or kidney dysfunction/failure. * Currently receiving cancer treatment or within 18 months from completion of radio- or chemotherapy. * Long-term history of oral bisphosphonates use (i.e., 10 years or more). * History of intravenous bisphosphonates. * Long-term (\>3 months) history of antibiotics or drugs known to alter the inflammation and/or immunological system 3 months before inclusion. * Severe osseous diseases (e.g., Paget disease of bone). * Pregnant women or nursing mothers. * Not able or not willing to follow instructions related to the study procedures.