Randomized Clinical Trial to Evaluate the Predictability of 5.5 mm Dental Implants

Inclusion Criteria: * Age ≥ 18 years * Clinical indication to place a prosthetic bridge supported by a maximum of 4 implants in the posterior sectors * Bone height in the area of interest sufficient to place implants 6.5mm length dental implants * Availability to be observed during the follow-up period * Signature of the informed consent Exclusion Criteria: * Need to perform bone augmentation surgery prior to implant placement surgery * Smokers (\> 10 cigarettes per day) * Patients with poorly controlled diabetes * Patients on chronic treatment with non-steroidal anti-inflammatory drugs * Patients receiving oral or intravenous bisphosphonates * Patients under chemotherapy or radiotherapy treatment * Patients receiving systemic corticosteroids