title: Displacements of precious and nonprecious dental bridges utilizing endosseous implants as distal abutments.
abstract: An investigation was conducted to establish qualitative trends regarding to relative displacements exhibited by the distal and mesial abutments in a five-unit fixed dental bridge as a function of bridge material and implant design utilized in the distal abutment site. Both Au and Ni-based bridge systems utilizing double, natural-tooth mesial abutments and three types of distal abutments (natural second molar, blade dental implant, and hollow-basket implant) were tested on a dried human mandible and subjected to a controlled force applied distally. Dial gauges were positioned around each abutment site bilaterally to provide displacement data in the x(mesial/distal), y(buccal/lingual, and z(occlusal/gingival) directions. The results indicate some significant differences exist in the displacement profiles exhibited by the bridge systems as a function of both bridge material and abutment type.
mesh_terms: D002858:Chromium Alloys; D000044:Dental Abutments; D003722:Dental Alloys; D003758:Dental Implantation, Endosseous; D003799:Dental Stress Analysis / Q000295:instrumentation / Q000379:methods*; D003830:Denture, Partial, Fixed; D006047:Gold Alloys; D006801:Humans
chemical_list: D002858:Chromium Alloys; D003722:Dental Alloys; D006047:Gold Alloys; C036884:Rexillium III