Is an exposed Alloderm graft recommended for palatal repair? (Photo)

I recently had upper and lower jaw surgery and my palate accidentally tore during the surgery. It was grafted partially with my own tissue and partially with Alloderm. The Alloderm was exposed and had a horrible smell and taste. When it finally started to fall off after a month there was still a hole and exposed bone in the palate. Now I can't drink anything without it coming out of my nose. Is there a better way to repair this?

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