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Updated: Sep 7, 2025

Biological Compatibility Profile on Biomaterials for Bone Regeneration
Published on: November 16, 2018
Frontal sinus obliteration with beta-tricalcium phosphate putty: case series with long-term radiological follow up
P Moore1, J K T Kam2, M Castle-Kirszbaum2
1Department of ENT, Head and Neck Surgery, Austin Health, Melbourne, Australia.
Objectives:
Frontal sinus obliteration is often performed using fat, autologous bone or a range of synthetic materials. This paper reports the long-term clinical and radiological outcomes of frontal sinus obliteration using beta-tricalcium phosphate putty.
Methods:
A retrospective audit was performed of patients who underwent frontal sinus obliteration with beta-tricalcium phosphate putty. Patient-, disease- and procedure-related data were collected. Pre- and post-operative computed tomography scans were reviewed to assess bone integration.
Results:
Four patients underwent frontal sinus obliteration using beta-tricalcium phosphate putty for treatment of a cerebrospinal leak, mucocele and recalcitrant frontal sinusitis. All patients had disease resolution, with no intra- or post-operative complications reported in the 16.5-month follow up. Post-operative computed tomography scans confirmed native bone obliteration of the frontonasal ducts in all patients.
Conclusion:
Beta-tricalcium phosphate putty is a safe and effective option for bone obliteration of the frontal sinus in a range of pathologies, including cerebrospinal fluid leak.

