Supplementary Implants Supporting Conventional Removable Dental Prosthesis (RDPs) in Kennedy Class I

Supplementary Implants Supporting Conventional RDPs in Kennedy Class I: A Dual-centered Randomized Controlled Trial

In this study the additional effect of supplementary implants in patients with Kennedy Class I in terms of patient-reported outcome measures (PROMs) and cost-benefit-analyses comparing costs of maintenance care will be investigated

Inclusion Criteria:

• Subjects must have voluntarily signed the informed consent before any study action, are willing and able to attend scheduled follow-up visits, and agree that the encoded data will be collected and analyzed
• Males and females with at least 18 years of age
• intraoral situation with bilateral edentulous areas located posterior to the remaining natural teeth (Kennedy class I) in the upper or lower jaw
• remaining dentition includes a first premolar, canine or incisor as the most posterior tooth

Exclusion Criteria:

• Uncontrolled systemic disease that would interfere with dental implant therapy;
• Patients who smoke > 10 cigarettes per day or tobacco equivalents;
• Patients with alcohol and/or drug abuse;
• Patients with chronic pain;
• Patients with untreated periodontitis and / or inadequate oral hygiene (Plaque Index < 30%);
• Medical conditions requiring chronic high dose steroid therapy or anti-resorptive treatment;
• Conditions or circumstances, in the opinion of the investigators, which would prevent completion of study participation or interfere with analysis of study results such as history of non-compliance or unreliability.