title: Fabrication of an overdenture covering a torus palatinus using a combination of denture base materials: a case report.
abstract: A maxillary torus provides a challenge when restoring an edentulous arch. Tori tend to have very thin mucosa and can be intolerant of normal pressures from a denture base. The tori tend to have large undercuts and at times extend to the junction with the soft palate, preventing the creation of a good palatal seal. Triple lamination involves combining 3 materials to fabricate a denture base that utilizes the retentive aspects of the torus. The thermoplastic flange provides a measure of flexibility, allowing the denture to seat over the torus. The resilient liner provides a cushion to diffuse the occlusal load, while the rigid acrylic base provides the support for the denture teeth. Using this approach, a very retentive denture was fabricated using the maxillary torus as a key element in anchoring the prosthesis.
authors.affiliation: dr.abrams4cell@sympatico.ca
authors.forename: Stephen
authors.initials: S
authors.lastname: Abrams
authors.forename: Warren
authors.initials: W
authors.lastname: Hellen
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry; D001672:Biocompatible Materials / Q000737:chemistry; D000044:Dental Abutments; D003764:Dental Materials; D003819:Denture Bases; D003779:Denture Design; D003781:Denture Retention; D003827:Denture, Complete, Upper; D003828:Denture, Overlay; D004129:Dimethylpolysiloxanes / Q000737:chemistry; D005096:Exostoses / Q000150:complications*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008439:Maxillary Diseases / Q000150:complications*; D008689:Methacrylates / Q000737:chemistry; D008875:Middle Aged; D021362:Palate, Hard / Q000473:pathology*; D012826:Silicone Elastomers / Q000737:chemistry; D013499:Surface Properties
chemical_list: D000180:Acrylic Resins; D001672:Biocompatible Materials; D003764:Dental Materials; D004129:Dimethylpolysiloxanes; C100654:Impact 76; C020964:MDX 4-4210; D008689:Methacrylates; D012826:Silicone Elastomers