Hydroxyapatite: an alternative method of frontal sinus obliteration.

Obliteration of the frontal sinus may be necessary for the treatment of chronic sinusitis, infectious complications, trauma, and benign and malignant neoplasms. Hydroxyapatite cement (HAC) is a relatively new material that is approved for the repair of cranial defects. HAC has been successfully used to obliterate the frontal sinus in 19 patients with few minor complications and the avoidance of donor site morbidity. Compared with other alloplastic materials, HAC has the advantages of easy use, biocompatibility, and osseointegration.