Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology
Oral and maxillofacial surgeryComparison of clinical outcomes of sinus bone graft with simultaneous implant placement: 4-month and 6-month final prosthetic loading
Section snippets
Materials and Methods
This study was conducted prospectively on the patients who underwent sinus bone grafts using a lateral approach and simultaneous implant placements performed by a single oral and maxillofacial surgeon from July 2007 to June 2008. The approval from the Institutional Review Board at Seoul National University Bundang Hospital (B-0810-062-010, Seoul, Korea) was obtained before the onset of study. The subjects were male and female patients in whom the residual bone height to the maxillary sinus
Results
One implant from the 6-month group involving a simultaneous bone graft in the maxillary sinus and implant placement failed; therefore, the implant was removed and immediately replaced with a wide implant. Including the one repositioned implant, all implants survived to the last follow-up observation time.
The cases from each group with perforation in the maxillary sinus membrane are shown in Table I, and a statistically significant difference between the 2 groups was not detected (P = .216
Discussion
Maxillary sinus bone grafts and implant placements have been classified as simultaneous or delayed placement, and the benefits of the 2 types of placements are controversial among investigators. Greatly different success rates have been reported for this procedure, and therefore the procedure should be performed according to the treatment concept of surgeons and after sufficient consultation with patients. It has been reported that good results could be obtained if the patients who could
Conclusion
Between the cases with 4-month and 6-month loading times after simultaneous maxillary sinus bone graft and implant placement, the short-term prognosis was not greatly different. If cases are chosen appropriately to achieve primary stability, even in the cases in which bone grafts and implant placements are performed simultaneously and loading is placed at the time point of 4 months after placement, good results can be obtained.
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Comparison of recombinant human bone morphogenetic protein-2-infused absorbable collagen sponge, recombinant human bone morphogenetic protein-2-coated tricalcium phosphate, and platelet-rich fibrin-mixed tricalcium phosphate for sinus augmentation in rabbits
2017, Journal of Dental SciencesCitation Excerpt :Owing to these limiting characteristics, recent studies have investigated an ideal bone substitute and growth factors to reduce surgical morbidity, and the addition of growth factors and numerous grafting materials to promote bone formation has set high expectations for their clinical potential. Similarly, some studies have focused on early bone formation for early implant loading4,5; reduced sinus augmentation operating time and cost are greatly desired by surgeons for successful implantation and meeting patient expectations. We previously reported the usefulness of tricalcium phosphate (TCP) as a carrier for recombinant human bone morphogenetic protein (rhBMP)-2 and platelet-rich fibrin (PRF) in sinus augmentation in rabbits, and demonstrated the early bone formation capacity of rhBMP-2-coated TCP and PRF-mixed TCP.6
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