“…Among the commonly used carriers, most of them are composed by collagen sponges (Tarnow et al, 2010), polylactic acid and polyglycolic (Aghaloo et al, 2010), membranes of different origins (Waris et al, 2010), hydroxyapatite (Xie et al, 2010), calcium sulfate and tricalcium phosphate (Sawyer et al, 2009). The carrier used in this study is the cubic phase of monoolein gel, which represents a material with bioadhesive, biodegradable, and biocompatible properties that has been used in the pharmaceutical industry because it represents an interesting releasing for drugs and medicines with different polarities and molecular weights for transdermal route (Shah et al, 2001), in addition, some previous studies have been conducted by the authors using the monoolein gel as a carrier for rhBMP-2 in different experimental animal models (Abdala et al, 2010;Balabanian et al, 2006;Issa et al, 2008Issa et al, , 2009.…”