Purpose: To investigate the difference of osteogenic effect and stability of maxillary sinus implants 6 months after maxillary sinus elevation with or without bone grafting.
Methods: A total of 150 patients with maxillary sinus floor lift and simultaneous implantation in Lishui People's Hospital from December 2019 to December 2021 were divided into group A (internal maxillary sinus lift + bone grafting) and group B (internal lift without bone grafting). Preoperative and postoperative CBCT data and implant stability of all patients were measured and analyzed to compare whether there were differences in clinical efficacy between the two groups. SPSS 25.0 software package was used for data analysis.
Results: A total of 199 implants were implanted, the implant retention rate was 97.6% in group A and 95.7% in group B one year after surgery, with no significant difference between the two groups(P＞0.05). There was no significant difference in residual bone height(RBH) and gray scale value (HU) between the two groups before and 6 months after operation (P＞0.05). There was no significant difference in ISQ value between the two groups during operation and 6 months after operation(P＞0.05).
Conclusions: In cases with the remaining alveolar bone height of 3～8 mm and the planned lifting height of 3～4 mm, maxillary sinus floor lifting procedure achieved good clinical results in both groups with or without bone grafting, which indicated that bone grafting had little effect on retention rate and stability of the implants.
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