Comparison of two different maxillary sinus lifting techniques with simultaneous dental implantation without bone transplantation：a follow-up of bone mass and stability around the implant
Fu Zhi-feng
Guo Qing-ping
Miu Ying
Abstract：BACKGROUND:Studies have demonstrated the maxilary sinus mucosa has an ability to promote bone formation, and over time, new bone can be formed in the space between the maxilary sinus intima and implant.
<br> OBJECTIVE:To compare the effect of opening sinus lifting and internal sinus lifting for immediate dental implantation without bone transplantation and to detect the survival of dental implants.
<br> METHODS: Fifty patients with insufficient bone in the maxilary posterior area were colected to undergo maxilary sinus lifting with simultaneous dental implantation without bone transplantation, and randomly divided into two groups, 25 in opening sinus lifting group and 35 in internal sinus lifting group.
<br> RESULTS AND CONCLUSION: After a 12-month folow-up, 59 implants functioned normaly, and 1 implant was loose after opening sinus lifting. The operative time and the amount of bleeding were significantly lower in the internal sinus lifting group than the opening sinus lifting (P< 0.05), but there was no difference in the short-term stability (postoperative 12 months) between the two groups (P > 0.05). Twelve months after operation, the bone mass around the implant was significantly less in the opening sinus lifting group than the internal sinus lifting group (P < 0.05). These findings indicate that maxilary sinus lifting techniques with simultaneous implants but without bone transplantation is feasible, which is characterized as simple operation process and less cost, but the long-term stability needs further observation.
Keywords：Subject headings:Maxilary SinusDental ImplantationDental ImplantsAlveolar Process
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 394-398 )