This study evaluated dental implant stability, vertical bone gain, bone density, and crestal bone loss using different crestal sinus lift techniques (osteotomy, Densah burs, and piezosurgery). A total of 21 patients were randomly divided into three groups: Group 1: patients were treated using a Densah drill crestal sinus lift, Group 2: patients were treated using a piezoelectric crestal sinus lift and Group 3: patients were treated using an osteotome crestal sinus lift. The patients in all three groups underwent bone grafting and implant placement. An Osstell device was used to determine the implant stability by recording the values of the implant stability quotient (ISQ). CBCT was performed before and 6 months after implant placement for radiographic evaluation and comparison among the groups. All dental implants were completely successful, and statistically significant differences from baseline to 6 months were noted in all groups (p < 0.05). The Densah burs technique resulted in the best implant stability of all groups, while the osteotome technique demonstrated better vertical bone augmentation. However, the values for bone density and crestal bone loss showed no significant difference among all treated groups (p > 0.05). All three techniques were successful for crestal sinus lifts with good clinical outcomes at a 6-month follow-up. The Densah group demonstrated better implant stability, shorter surgery time, and fewer complications; however, the vertical bone gain was greater with the osteotome technique.

Objective: Evaluation of implant stability, vertical and horizontal bone gain and bone density using osseodensification technique versus Piezosurgery in transcrestal maxillary sinus lifting.Subjects & Methods: Twenty-two patients were included in the study and randomly divided into 2 equal groups: Group 1: 11 patients treated by densah drills (Versah, Jackson, MI, USA) transcrestal sinus lift with bone grafting (xenograft) and implant placement. Group 2: 11 patients treated by piezoelectric transcrestal sinus lift (Piezotome; Satelec) with bone grafting (xenograft) and implant placement. CBCT radiograph was done before and after 6 months of dental implant placement.Results: Both groups showed statistically significant differences from baseline to 6 months. osseodensification showed a better technique for gaining better implant stability and bone density. Both groups showed no difference in both vertical and horizontal bone gain. Conclusion: Osseodensification and piezoelectric surgery are both effective methods for crestal sinus elevation, with higher implant stability and bone density in the osseodensification group after 6 months.