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KMID : 0602720110150010072
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Implantology
2011 Volume.15 No. 1 p.72 ~ p.80
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A Literature Review on Maxillary Sinus Grafts for Implant Placement: Simultaneous and Delayed Implantation
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Oh Ji-Su
Kim Su-Gwan
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Abstract
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Purpose: The objective of this review was to analyze the current literature and evaluate implant survival rates in the grafted sinus according to implant placement timing.
Materials and Methods: Articles on maxillary sinus graft performed between 1999 and 2010 were collected using electronic database MEDLINE. All articles were screened according to inclusion criteria; limited to clinical report, at least 10 patients, mean follow-up was at least 6 months.
Results: Simultaneous implant placement was performed in 1,872 patients and involved 5,015 implants. The follow-up period was 41.2 months and a total survival rate was 93.80%. The implant placement was delayed in 767 patients and involved 2,972 implants. The period between maxillary sinus elevation and implant installation ranged from 3 to 11.9 months and averaged 6.5 months. The mean residual bone height was 3.3 mm. A mean follow-up period was 41.6 months and a overall survival rate was 94.54%. The delayed implantation showed higher survival rates than simultaneous implantation, with 93.80% and 94.54%, respectively. This difference, however, did not reach statistical significance (p=0.170).
Conclusion: The maxillary sinus graft is a predictable treatment method showing high implant survival rates.
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KEYWORD
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delayed implantation, simultaneous implantation, sinus augmentation, sinus graft, survival rate
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