Abstract
Objective: Synthesize collagen membranes associated with annatto compounds (Bixa orellana L.) with physical-macroscopic characteristics analogous to those used in the Guided Bone Regeneration process. Methods: Membranes composed of starch, collagen and annatto extract were synthesized. After synthesis, the membranes were characterized for color, translucency, texture, flexibility, thickness and degradation simulated in vitro. The data were organized in a discursive way and classified according to the characteristics presented by the membranes, being correlated with their importance through reports in the literature. Results: The membranes obtained showed a translucent aspect suggestive of the presence of pores, with an orange color characteristic of the annatto extract, a smooth surface demonstrating the homogeneity of the compounds, flexibility, thin thickness, which facilitates its handling, and gradual loss of mass over 20 days if behaving in a way favorable to its use. Conclusion: Collagen membranes associated with annatto compounds (Bixa orellana L.) were synthesized, translucent, with smooth, flexible, thin surfaces, easy to handle and degradable when hydrated, being compatible for use in the Guided Bone Regeneration (ROG) technique.