title: Biomechanical aspects of prosthetic treatment of structurally compromised teeth.
abstract: OBJECTIVE
  This article presents clinical guidelines for restoring structurally compromised teeth and dentitions to reduce the risk for fatigue-caused failures in connection with prosthetic reconstructions.
  
  
  METHODS
  Based on the best scientific evidence available and clinical expertise acquired through experience and practice, biomechanical principles are elucidated from a prosthetic aspect.
  
  
  RESULTS
  In prosthetic treatment in the structurally compromised dentition, all efforts need to be focused on protecting the abutments and reconstruction from future fatigue failures. A modified, "therapeutic" occlusion to avoid nonaxial forces may then be prudent.
  
  
  CONCLUSIONS
  By lending the prosthesis a favorable occlusal design, the nonaxial forces may be markedly reduced, and the teeth, cement, and restorative materials will be less susceptible to fatigue failures.
authors.affiliation: Clinic for Prosthodontics, Specialist Center, Uddevalla Hospital, Sweden. annika.torbjorner@vgregion.se
authors.forename: Annika
authors.initials: A
authors.lastname: Torbjörner
authors.forename: Bo
authors.initials: B
authors.lastname: Fransson
mesh_terms: D000044:Dental Abutments; D003766:Dental Occlusion; D019232:Dental Restoration Failure; D003799:Dental Stress Analysis; D003779:Denture Design; D003830:Denture, Partial, Fixed; D006801:Humans; D013718:Tensile Strength; D014082:Tooth Fractures / Q000517:prevention & control; D019553:Tooth, Nonvital