Clinical effects of osseodensification technique for transalveolar sinus floor elevation

doi:10.12337/zgkqzzxzz.2024.02.011

Abstract

Abstract: Objective To investigate the clinical effects of the osseodensification technique applied to transalveolar maxillary sinus floor elevation with simultaneous implant placement. Methods A total of 39 patients underwent transalveolar sinus floor elevation using osseodensification and implant placement in the Department of Implantology, Stomatological Hospital of Chongqing Medical University from May 2022 to May 2023. 21 cases were female, and 18 cases were male, with ages ranging from 21 to 73 years old and an average of (51.67±11.68) years old. Definitive prosthesis was delivered 6 months after implant surgery. Cone-beam computed tomography (CBCT) was conducted preoperatively (T0), postoperatively (T1), and at 6-month follow-up (T2), measuring residual bone height (RBH), vertical bone height (VBH), and bone density (BD) at the implant site. Implant stability test (IST), sinus membrane perforation rate, and implant survival rate (SR) were recorded and analyzed 6 months after implant surgery. Results A total of 39 patients underwent maxillary sinus floor elevation surgery with 53 implants placed simultaneously. Alveolar bone heights ranged from 3.38 to 9.40 mm at T0, with a mean of (6.16±1.00) mm, (11.25±1.10) mm at T1, and (10.36±0.99) mm at T2. Significant differences in alveolar bone height were observed among different observation points (P <0.001). The BDT0, BDT1 and BDT2 were 196.65 Hu, 441.70 Hu, and 435.04Hu respectively. Significant differences in bone density between T0 and T1 (P<0.0001) were found. The sinus membrane perforation rate was 1.89%. 2 implants were lost in 6 months after surgery, yielding a cumulative implant survival rate of 96.23%. The remaining implants exhibited favorable IST values 77.61±4.78 at 6 months post-surgery, and no peri-implant inflammation was observed during the follow-up period. Conclusion The osseodensification technique may achieve optimal clinical effects for transalveolar sinus floor elevation. The technique exhibits acceptable short-term outcomes, while further studies on long-term clinical effects are required.

Key words: Sinus floor elevation, Osseodensification, Implant stability, Perforation of the maxillary sinus membrane

Wang Kexin, Ji Ping, Li Dize, Chen Yuan, Zhao Hongyong, Lu Qinyi, Bai Yaxin, Chen Tao. Clinical effects of osseodensification technique for transalveolar sinus floor elevation[J]. Chinese Journal of Oral Implantology, 2024, 29(1): 62-69.

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