Assessment of the autogenous bone graft for sinus elevation

Abstract

ObjectivesThe posterior maxillary region often provides a limited bone volume for dental implants. Maxillary sinus elevation via inserting a bone graft through a window opened in the lateral sinus wall has become the most common surgical procedure for increasing the alveolar bone height in place of dental implants in the posterior maxillary region. The purpose of this article is to assess the change of bone volume and the clinical effects of dental implant placement in sites with maxillary sinus floor elevation and autogenous bone graft through the lateral window approach.Materials and MethodsIn this article, the analysis data were collected from 64 dental implants that were placed in 24 patients with 29 lacks of the bone volume posterior maxillary region from June 2004 to April 2011, at the Department of Oral and Maxillofacial Surgery, Inha University Hospital. Panoramic views were taken before the surgery, after the surgery, 6 months after the surgery, and at the time of the final follow-up. The influence of the factors on the grafted bone material resorption rate was evaluated according to the patient characteristics (age and gender), graft material, implant installation stage, implant size, implant placement region, local infection, surgical complication, and residual alveolar bone height.ResultsThe bone graft resorption rate of male patients at the final follow-up was significantly higher than the rate of female patients. The single autogenous bone-grafted site was significantly more resorbed than the autogenous bone combined with the Bio-Oss grafted site. The implant installation stage and residual alveolar height showed a significant correlation with the resorption rate of maxillary sinus bone graft material. The success rate and survival rate of the implant were 92.2% and 100%, respectively.ConclusionMaxillary sinus elevation procedure with autogenous bone graft or autogenous bone in combination with Bio-Oss is a predictable treatment method for implant rehabilitation.

Non-autologous human bone graft applied to upper maxillary sinus elevation

“…77% of bone grafts are performed in the anterior area of the maxilla for esthetic reasons. In a study conducted with a total of 1512 implants, they were placed in 421 males and 371 females 24 . Dental implants were successfully placed in all the patients included in this study with no periimplantitis or other sequela recorded that would indicate a clinical failure of the restorative treatment.…”

Subantral augmentation with a 1/1 alloplastic and autologous material mixture. Histological characteristics and dimensional stability of the newly formed bone

“…The resorption rate of the alloplastic augmentation material is lower compared to that of the autologous material, and their association is aimed at slowing the resorption rate of the subantral graft [ 11 ]. On the other hand, autologous graft is considered to be the bone augmentation material with the best biological properties, so far unequaled by any other material [ 2 ], but previous studies indicate the increased bone resorption rate of this type of material as a disadvantage [ 12 , 13 ]. The position of the mean resorption rate obtained in this study between the rate of autologous grafts and that of alloplastic grafts is an expected result, which confirms the hypothesis that an association of the two types of materials improves their characteristics.…”

“…However, a number of local problems may frequently limit the use of dental implants, and one of the regions posing the most problems is the posterior maxillary area. The main inconvenient of this area is the insufficient bone available as a result of post-extraction bone resorption or maxillary sinus pneumatization [ 2 , 3 ]. Several surgical methods have been designed and applied in medical practice to overcome this limitation, such as special implants, subantral bone augmentation, onlay bone augmentation, etc.…”

“…One of the most frequently used methods is that described by Tatum [ 3 ], which involves the approach of the maxillary sinus through a window opened in the lateral sinus wall. Four types of materials have been proposed and employed for bone augmentation: autogenous bone, allogenic bone, xenogenic bone, and alloplastic bone [ 1 , 2 ]. Of these, autogenous bone is considered to have the best properties as a bone augmentation material [ 1 , 5 , 6 ].…”

Ozone Improves Autogenous Graft Healing in Experimental Diabetes Mellitus: A Morphometric and Immunohistochemical Study

“…3 Although, different graft material were used for bone defects, autografts are still remain the 'gold standard' in reconstructing bone defects as it combines all properties required in a bone-graft material: osteoinduction (bone morphogenic proteins and other growth factors), osteogenesis (osteoprogenitor cells) and osteoconduction (scaffold) but remodeling it suffers from inadequate tissue availability, associated donor site morbidity 4,5 and unpredictable graft resorption. 6 Many treatment modalities have been used to improve the regenerative capacity of the autografts such as platelet rich plasma 7 , platelet rich fibrin 8 , alendronate application 9 , and more recently ozone therapy. 10 Ozone (triatomic oxygen and trioxygen) is an allotropic form of oxygen occurring naturally in the Earth's atmosphere and known as the third strongest oxidizing agent in the World.…”