Aim: This study aimed to evaluate the clinical complications that might be presented with osteotome and densah burs, as well as to assess the new bone generated at 6 months post-operatively using CBCT. The study hypothesis was that densah bur would show comparable results to osteotome-mediated sinus lifting.
Material and method: Ten patients were enrolled in the study with atrophied maxillary posterior edentulous area that required rehabilitation with implants and sinus membrane elevation. Sinus membrane was elevated with two techniques, Osteotome and Densah bur sinus lifting procedures. Clinical (sinus perforation, post-operative swelling, and headache/vertigo) and radiographic parameters (RBH and ESBG) were assessed.
Result: In both groups, new bone levels were higher in comparison to initial levels with statistical significant difference. The mean RBH in Densah bur group (8.1 ± 1.5) was higher than the Osteotome group (6.9 ± 0.6) with p value = 0.13. Moreover, Densah bur showed higher mean ESPG than group I with 1.8 ± 0.4 and 1.4 ± 0.5 values respectively and p value = 0.21. Lastly, post-operative complications comparison showed non-significant differences between both groups except for headache and vertigo.
Conclusion: The protruded implants can act as tents and allow formation of blood clot with concomitant bone regeneration. Although the two techniques applied for drilling showed comparable radiographic results, however, they displayed differences in patient perception. According to this study, it can be concluded that osseodensification surpasses osteotome- lifting procedure when it comes to patient comfort and satisfaction.