PDF: Use of Homologous Bone Grafts in Maxillary Sinus Lifting

The maxillary bone atrophy is usually caused by loss of teeth, infections, trauma, tumor resections and/ or developmental abnormalities.

Homologous Bone

Such lesions, besides not repairing themselves spontaneously, are enhanced by the absence of stimuli, affecting the form and function of the skull. 

Read also: PDF: Surgical management of palatine Torus

The loss of teeth causes the narrowing of alveolar bone crest width, loss of height and reduction of cancellous bone.

Thus, stimuli that maintain the morphology of the alveolar bone are lost with the teeth absence. Bone resorption in maxillary alveolar process at posterior region may limit the implant installation with adequate length to achieve stability under masticatory loads.

Thus, the repair of the resorbed alveolar bone is one of the current challenges of dental clinics, whose the search to appropriate height and width are necessary to accommodate the appropriate implant dimensions, with an axial angle that allows the placing of the prosthesis.

The main indication for maxillary sinus lifting refers to creating better conditions for installation of implants at the maxillary posterior region that presents insufficient bone volume and subsequent pneumatization of the maxillary sinus.

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