One surgical and one medical complication are reported. No surgical failures were noted one patient underwent a negative reexploration. The average patient age was 41 years, with the average duration of follow-up being 40.2 months. The use of DBM as a biomaterial associated with calvarial bone dust for sinus obliteration shows long-term safe results, similar to autogenous bone, but with a lower final bone density. Results: Twenty osteoplastic flap procedures to obliterate the frontal sinus were reviewed. Ossification progressed in a statistically significant manner in both groups when compared at 6 and 24 months postoperatively. The resulting bone formation (HU) in group I patients was significantly better than that obtained in group II. Complications developed for 10% of operated sinuses. 11, 12 the choice of material is also important for successful obliteration. Vascular regional flaps may be used to obliterate small sinuses with less morbidity. for successful obliteration of the frontal sinus, the frontal sinus mucosa and the inner bony cortex of the sinus wall must be completely removed, and the nasofrontal duct must be occluded permanently. and possible sinus obliteration to assure fracture reduction, fixation. These avascular grafts carry an increased risk of resorption and infection as well as donor site morbidity. Frontal sinus fractures contribute to 5-15 of all facial fractures and are most. Results were compared with reference values obtained from frontal and temporal bone in every patient. Background: Frontal sinus obliteration is often accomplished by autologous grafts such as fat, muscle, or bone. Once the decision is made to obliterate the sinus, it is paramount that all mucosal remnants be removed and that the material used to fill the irregular expanses of the frontal sinus help. Bone volume and density data (HU) for the regenerated areas were subjected to statistical analysis at 6 and 24 months for both groups. Frontal sinus obliteration is performed for a variety of reasons, including chronic sinus disease, traumatic injuries, mucoceles, and osteomas of the sinus. Epidemiological information and potential drawbacks were analysed. But when maximal brow bone reduction is desired or as a secondary reduction method when the first is inadequate, it offers a highly effective reduction contouring method. Radiological follow-up included high-resolution computed tomography with quantitative micro-density analysis in Hounsfield units (HU), together with a volumetric evaluation of the ossification at 6 and 24 months after surgical treatment. Frontal sinus obliteration is not a standard technique in brow bone reduction and is usually only used in the rare event of chronic frontal sinusitis/bone flap osteomyelitis. We present a prospective randomized experimental study comparing bone regeneration obtained in 60 post-traumatic frontal sinuses obliterated with either calvarial bone dust ( n = 30, group I) or calvarial bone and demineralized bone matrix (DBM n = 30, group II).
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