Atrophy of Edentulous Maxillary Alveolar Ridge

This is a post-market prospective observational study to prospectively collect clinical data to confirm the long-term safety and clinical performance of implants and abutments Helix Short in a daily dental practice setting, by means of success and survival rates of these devices. Additionally, from the collected data, the study aims to identify previously unknown side-effects and monitor the known side-effects and contraindications stated on the IFU, identify and analyze emerging risks on the basis of factual evidence, and ensure the continued acceptability of the benefit-risk ratio with the intent to verify that the intended purpose is correct for all JJGC products involved in the procedure that get in contact with the patient.

The goal of this clinical trial is to evaluate the effectiveness of dynamic navigation in full-arch dental implant placement in patients with complete maxillary edentulism. The main questions it aims to answer are: * the accuracy of nasopalatine implants, trans-sinus implants, and trans-nasal implants placement in the anterior maxillary bone with dynamic navigation * the clinical effectiveness of nasopalatine implants, trans-sinus implants, and trans-nasal implants in full-arch rehabilitation * the correlation between the anatomical features of the nasal cavity and the anterior sinus wall on CBCT images and their influence on nasopalatine implants, trans-sinus implants, and trans-nasal implants position