Abstract:

Objective

To investigate the effect of bone grafting on osseointegration of dental implant during maxillary sinus augmentation.

Methods

One hundred and twenty implants with maxillary sinus augmentation were divided into two groups. The experimental group included 60 implants which were placed simultaneously after osteotome sinus floor elevation with bone grafting； the control group（also 60 implants） otherwise without bone grafting. Implant osseointegration， clinical parameters， the implant survival rate and radiological finding of all implants were estimated after clinical tracking（average 18 months）.

Results

Only one implant with its cover screw exposed and bone absorption in its neck was observed. All the implants were completed with the prosthetic rehabilitation. The implant survival rate was 100% and no implant lost. Efficient mastication and good osseointegration were obtained by all implants and new bone regeneration around implant was found by radiological examination.

Conclusion

The similar result of implant osseointegration was observed in the case of osteotome sinus floor elevation with or without bone grafting. Osteotome sinus floor elevation without bone grafting can largely reduce the cost of the patient and would be worth to recommend.

Key words: Maxillary sinus augmentation, Bone graft, Osseointegration