IRCT20120215009014N553 IRCT 2025-03-21 Hamedan University of Medical Sciences Comparison of the success of maxillary sinus lifting surgery in pathologic sinuses versus normal sinuses Comparison of the success of maxillary sinus lifting surgery in pathologic sinuses versus normal sinuses: a clinical trial 2025-04-09 anticipated 20 Complete https://irct.ir/trial/82424 interventional Randomization: Not randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment. N/A Dental implant. Intervention 1: Intervention group: Elevation of the floor of the maxillary sinus in the area of the first premolar to the first molar by open surgery in patients with radiographic evidence of increased mucosal thickness in the maxillary sinus. Intervention 2: Control group: Elevation of the floor of the maxillary sinus in the area of the first premolar to the first molar by open surgery in patients without radiographic evidence of increased mucosal thickness in the maxillary sinus. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is It depends on the situation and the results of the study as well as the approval of the financial supporting organization.