Maxillary Sinus Floor Elevation With Gelatin Sponge Versus Allogenic Demineralized Bone Matrix

Inclusion Criteria

• •1. Patients of both sexes, with an age range of (25 to 55 years) with unilateral or bilateral edentulous posterior maxillary molar region with \\ vertical residual bone height of (four to six millimeters), a minimal horizontal bone width of six millimeters bone width, acceptable interarch space, and fair inter-jaw anteroposterior, horizontal and vertical relationships.
• •2. Proper general health and oral hygiene.