Grafting Material For Sinus Augmentation Research Articles

Autologous tooth graft for maxillary sinus augmentation: A multicenter clinical study

Aim: The aim of this pilot study was to assess the performance of autologous tooth matrix, used as a graft material for maxillary sinus augmentation, after at least 1-year of follow-up. Settings and Design: The patients included in this prospective case series study were treated in four clinical centers using standardized clinical procedures. Materials and Methods: Patients with atrophic posterior maxilla in need of sinus augmentation before rehabilitation with implant-supported prostheses, and with compromised teeth to be extracted, were included. The extracted tooth was cleaned and processed by a recently introduced automated device, which allows fragmentation and partial demineralization of the tooth matrix, and used as a graft material for sinus augmentation. A covering membrane was used to protect the graft. Implants were placed after 6 months of healing. Five bone biopsies of the grafted sites were taken at the time of implant surgery, for histological analysis. Implants were followed for at least 1 year after placement. Cone-beam computed tomography and/or standardized periapical radiographs were used to assess the ridge height before and after grafting, up to 1-year postimplantation. Statistical Analysis: Descriptive statistics were used to synthesize the results, using mean values and standard deviations. Results: Twenty-three patients (9 males, mean age at surgery 57.1 ± 9.4 years) were treated and 40 implants were placed in grafted sites. Residual ridge height was 5.22 ± 2.04 mm and increased to 14.72 ± 2.83 mm after grafting. One implant failed during healing phase. Cumulative implant survival rate was 97.5% after 19.1 ± 8.0 months of follow-up (range 12.3–44.1 months). After 6 months of healing, the graft height appeared stable. No signs of sinus infection were present. The histologic analysis revealed neither inflammatory nor infective reaction against tooth graft. Granules appeared surrounded by newly formed bone and partially resorbed, indicating ongoing remodeling. Conclusion: Autologous human tooth matrix can be successfully used as graft material in sinus augmentation procedure.

PC377: Tissue engineering: platelet rich fibrin as a sole graft material for sinus augmentation

PC377: Tissue engineering: platelet rich fibrin as a sole graft material for sinus augmentation

A newly developed device for maxillary sinus membrane elevation by crestal approach: a 2‐year prospective comparative case series study with or without graft material for sinus augmentation

A newly developed device for maxillary sinus membrane elevation by crestal approach: a 2‐year prospective comparative case series study with or without graft material for sinus augmentation

Direct vs. indirect sinus lift procedure: A comparison

Background:There are different techniques for the sinus augmentation; the factors that contribute to the survival rate of sinus augmentation and dental implant placement are still the subject of discussion. So we compare the two different ways of sinus floor elevation: a) Lateral antrostomy as a one or two step procedure as direct method. b) Osteotome technique with a crestal approach as indirect method.Materials and Methods:A total of twenty partially edentulous patients in maxillary posterior region who opted for implant retained prosthesis but had a low sinus and deficient alveolar ridge within the age group of 20-55 years were taken up, 25 implants were placed in combination with bone grafting material for sinus augmentation. The final bone height was measured from Orthopantomogram. Post-operative Clinical Evaluation was based on pain, gingival inflammation status, stability, swelling and bone height. Statistical analysis was done by using Statistical Package for Social Sciences (version 15.0) (SPSS Inc., Chicago, IL, USA).Results:The gain in bone height was significantly greater in direct procedure through lateral antrostomy (mean 8.5 mm) than in indirect method through crestal approach by osteotome technique (mean 4.4 mm).Conclusions:Osteotome technique can be recommended when more than 6 mm of residual bone height is present and an increase of 3-4 mm is expected. In case of more advanced resorption direct method through lateral antrostomy has to be performed. Both sinus elevation techniques did not seem to affect the implant success rate.