الفهرس 
Evaluation of tri-calcium phosphate in frontal sinus obliteration
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Abstract
Frontal sinus fractures pose a huge challenge to oral and maxillofacial surgeons, owing mainly to the proximity of the sinus to both the brain and globe. This may lead to serious complications when frontal sinus fractures are either left untreated or are inadequately treated. Management of such fractures varies according to the exact type and extent of injury. Subsequently, treatment modalities of frontal sinus fractures include observation, preservation, obliteration and cranialization. In cases indicated for obliteration, multiple potential obliteration materials exist. These include autografts, allografts and alloplasts. This study was conducted to evaluate tricalcium phosphate as an obliteration material for frontal sinus fractures. Eight patients were indicated in this study, they all underwent frontal sinus obliteration using Tricalcium Phosphate. Patients were followed up both clinically and radiographically. CT images were taken preoperatively, immediately postoperatively and four months postoperatively. The radiodensity of the obliteration material inside the frontal sinus was also evaluated by recording the mean radiodensity of a region of interest on the patient{u2019}s CT scans. All the readings measured were assessed statistically. Seven out of eight patients who underwent Tricalcium Phosphate obliteration of the frontal sinus exhibited satisfactory results. Seven patients showed a marginal increase in radiodensity of the obliterated frontal sinus four months postoperatively. This was not found to be statistically significant