Evaluation of the Stability of Implants With Two Different Surface Treatments

Inclusion Criteria: * Patients who had lost teeth in the posterior maxilla (region of premolars and molars, can be interspace or free end) in need of restoration with implant-supported prostheses * Able to understand and sign a waiver of informed free consent * Good oral hygiene * The receiving implant sites must have at least 3 months of healing after tooth extraction, proper height and width to install an implant of 4.3 mm in diameter and 10 mm of high. Exclusion Criteria: * Patients requiring implants in the mandible or anterior maxilla (bone type I and II), or to submit any of the following conditions: general contraindications for surgical procedures, uncontrolled diabetes, severe bruxism or clenching, pregnant and lactating women, active periodontal disease, smoking and use of alcohol or drugs * Patients who underwent radiotherapy near the buccal cavity regions chemotherapy and those who use or have recently used bisphosphonates, such as alendronate.