View clinical trials related to Maxillary Sinus.
Filter by:Placing implants in the posterior maxillary area has the drawback of working with scarce, poor quality bone in a significant percentage of cases. Numerous advanced surgical techniques have been developed to overcome the difficulties associated with these limitations. Subsequent to reports on the elevation of the maxillary sinus through the lateral approach, there were reports on the use of the crestal approach, which is less aggressive but requires a minimal amount of bone. Furthermore, it is more sensitive to operator technique, as the integrity of the sinus membrane is checked indirectly. The main advantage of this new technique, Intralift, is that it does not require a minimum amount of crestal bone (indeed, the smaller the width of the crestal bone, the better this technique is performed). The possibility of damage to the sinus membrane is minimized by using ultrasound based hydrodynamic pressure to lift it, while applying a very non-aggressive crestal approach. Conclusions: We believe that this technique is an advance in the search for less traumatic and aggressive techniques, which is the hallmark of current surgery The buccal fat pad appears at 3 months in utero and continuously grows until birth (9). It protrudes at the anterior border of the masseter muscle and extends to the parotid duct, where it rests on the buccopharyngeal fascia, which covers the buccinator muscle. There is little change in the volume of buccal fat during aging, and it is approximately 10 mL PRF is a natural fibrin-based biomaterial prepared from an anticoagulant-free blood harvest without any artificial biochemical modification that allows obtaining fibrin membranes enriched with platelets and growth factors
a cross-sectional study to estimate the prevalence of maxillary sinus septum and assessment of it in a sample of Egyptian Population using cone beam computed tomography through retrospective data analysis
The aim of this study is to evaluate the efficacy of newly forming bone graft (NFB) in the gain of bone volume in sinus lift procedures. For that, it will be compared the tomographic bone gain 6 months after surgery between a group that received inorganic bovine bone alone (n=8) and a group that received inorganic bovine bone associated with NFB (n=8).
using gel foam [ absorbable gelatin ] in maxillary sinus elevation which act as a space maintainer and alternative to bone filler for new bone formation in the maxillary sinus and its advantages for patients undergoing maxillary sinus elevation with simultaneous implant placement as regards the implant stability and amount of bone height gain compared to conventional maxillary sinus elevation by xenograft.
This study evaluates the radiographic, histological and clinical comparisons of the completely autologous T-PRF or allograft effectiveness at the maxillary sinus elevation procedure.
Background: Maxillary sinus floor augmentation is a standard surgical procedure to increase bone height in the atrophic posterior maxilla for dental implant placement. In bone reconstructive surgery, in general, autogenous bone is considered as the gold standard, primarily due to its osteogenic potential and remodelling capacity. Bone substitutes are available that can overcome the limitations of autologous bone due to their osteoconductive properties and biocompatibility. Several studies seem to validate these concepts, but further comparative trials are needed. Aim: To compare the outcome of implants inserted in maxillary sinuses augmented with bovine bone grafts vs 50% bovine bone graft and 50% autologous bone according to a lateral approach. Material and Methods: This study was designed as a randomised, controlled, clinical trial. Sixteen partially or fully edentulous patients, 20 sinuses, (four patients have been bilaterally treated) having 1 to 4 mm of residual crestal height below the maxillary sinuses were randomised according to a parallel group design. Sinuses were grafted according to a lateral approach. Group A (10 sinuses) was grafted with 50% anorganic bovine bone (Bio-Oss) and 50% autogenous bone, group B (10 sinuses) was grafted with 100% anorganic bovine bone (Bio-Oss). According with a two stages approach, after 7 months a total of 32 implants (Nobel Replace tapered groovy) were inserted with an insertion torque between 35 and 45 Ncm. At same surgical procedure a sample of bone was harvested for histomorphometric analysis . All implants were delayed loaded with screw retained temporary crowns 3 months after implants insertion and with screw retained definitive crowns 4 months later. Outcome measures were implant survival, biological and prosthetic complications, radiographic marginal bone-level changes, PPD and BOP. Clinical data were collected at baseline 6,12 months. Statistical significance was tested at the 0.05 probability level, and all values were presented as mean and standard deviation.
The aim of the present study is to establish a modified minimally invasive surgical technique for sinus floor augmentation with a residual bone height of 3-6mm. Hypothesis: The investigators expect that the present surgical technique allows to achieve an adequate implant bed of at least 10mm height after a healing period of 3-5 months. Further the modification of the technique enables a reduced patient stress level.
The purpose of this split-mouth clinical study is to evaluate the clinical, radiographic and histological outcomes of lateral window sinus augmentation with a bovine xenograft or a CPS putty bone substitute in posterior maxillary sites and the survival of implants placed in these sites following healing.