<prompt> The most common facial abnormality seen in Gardener;s syndrome isEctodermal dyplasiaOdontomesMultile osteomasDental cysts  <response>: .desmoid tumor is often associated with the familial polyposis colon FAP, osteomas, odontomes epidermal cysts-- Gardners syndrome. Gardners syndrome 1. Familial polyposis colon 2. Osteomas 3. Odontomes 4. Epidermal cyst - 20 ref:SRB ;s manual of surgery,ed 3,pg no-672 