title: Improved visibility with the 'Van Ooy' lip and cheek retractor.
authors.affiliation: Department of Oral and Maxillofacial Surgery, St Elisabeth Hospital, The Netherlands.
authors.forename: C M
authors.initials: CM
authors.lastname: ten Bruggenkate
authors.forename: H S
authors.initials: HS
authors.lastname: Oosterbeek
mesh_terms: D003757:Dental Implantation / Q000295:instrumentation*; D003762:Dental Instruments; D006801:Humans