**8. Complications**

Full arch rehabilitation treatments with dental implants can have complications and failures. In general, complications may be related to the patient's systemic compromise, increased functional demand, surgical technique, post-operative care, design and type of prosthesis, etc. The overall success rate for dental implants is between 90–100% according to the study [48].

The most frequent prosthetic complications after the placement of an implantsupported prosthesis are: mucositis, loosening or fracture of the abutment screw or prosthetic components, and fracture of the acrylic or porcelain structure. Although most complications resolve favorably in follow-up appointments, it is essential to establish an adequate surgical and prosthetic management protocol to achieve predictable and successful long-term results [49, 50].
