J Korean Dent Sci.  2019 Dec;12(2):48-57. 10.5856/JKDS.2019.12.2.48.

Do Certain Conditions Favor the Use of Autogenous Bone Graft Over Bone Substitutes for Maxillary Sinus Augmentation?

Affiliations
  • 1Department of Periodontology , Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
  • 2Department of Oral and Maxillofacial Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea. ribosome@hanmail.net

Abstract

PURPOSE
To investigate whether there are specific surgical or clinical conditions where the use of autogenous bone (AB) is superior to the use of bone substitutes (BSs) for maxillary sinus floor augmentation (MSFA).
MATERIALS AND METHODS
We retrospectively analyzed 386 implants after MSFA in 178 patients. The implants were divided into five groups according to the sinus graft material used. Risk factors for implant failure in MSFA, and correlation between residual bone height (RBH) and graft materials in terms of implant survival were investigated. To investigate risk factors for implant failure in MSFA, implant survival according to graft materials, patients' sex/age, surgical site, RBH, healing period prior to prosthetic loading, staged- or simultaneous implantation with MSFA, the crown-to-implant ratio, prosthetic type, implant diameter, and opposite dentition were evaluated. RESULT: The cumulative 2- and 5-year survival rates of implants placed in the grafted sinus (independent of the graft material used) were 98.7% and 97.3%, respectively. None of the investigated variables were identified as significant risk factors for implant failure. There was also no statistical significance in implant survival between graft materials.
CONCLUSION
There were no specific surgical conditions in which AB was superior to BSs in terms of implant survival after MSFA.

Keyword

Dental implants; Risk factors; Survival rate

MeSH Terms

Bone Substitutes*
Dental Implants
Dentition
Humans
Maxillary Sinus*
Retrospective Studies
Risk Factors
Sinus Floor Augmentation
Survival Rate
Transplants*
Bone Substitutes
Dental Implants
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