Background: Carbonated hydroxyapatite is considered a promising biomaterial for applications in regenerative medicine and tissue engineering due to its high biocompatibility and solubility. It was developed aiming to improve the dissolution properties of conventional hydroxyapatite (HA) in biological fluids by extending its therapeutic capacity as a bone substitute for orthopedic/maxillofacial surgery.

Background: Face sinus mucocele is a collection of mucus that causes expansion and dilation of the sinus walls, like a cyst. The involvement of frontal sinus is not considered rare and as a result of a chronic infection, it becomes mucopyocele. Surgical approaches are based on the size, location and extent of mucocele in order to prevents recurrence.

Background: Cemento-ossifying Fibroma is a benign neoplasm related to bone that was first described by Menzel in 1842. This pathology can occur at any age, but is more common in young adults showing predilection for the jaw bone and female gender. Usually, the lesion is asymptomatic. It is well circumscribed and delimited by the surrounding bone, which generally allows its enucleation. However, some cases may require surgical resection and bone grafting.