title: Biomechanical concerns with fixed partial dentures involving implants.
abstract: Nine biomechanical factors involved in the design and fabrication of fixed partial dentures incorporating implants are discussed, focusing upon the deleterious effects of leverage, torsion, occlusal overload, and poor oral hygiene. Areas of concern are cantilevers, pier abutments, excessive fixed spans, use and misuse of nonrigid connectors, off-axis loading, occlusal plane to implant height ratio, inadequate support, distribution, and mandibular flexion and torsion.
authors.affiliation: VA Medical Center, Augusta, GA 30904.
authors.forename: C E
authors.initials: CE
authors.lastname: English
mesh_terms: D001696:Biomechanical Phenomena; D000044:Dental Abutments; D003722:Dental Alloys / Q000737:chemistry; D015921:Dental Implants; D017267:Dental Prosthesis Design; D003799:Dental Stress Analysis; D003781:Denture Retention / Q000295:instrumentation; D003830:Denture, Partial, Fixed; D006801:Humans; D010347:Patient Care Planning
chemical_list: D003722:Dental Alloys; D015921:Dental Implants