title: Prosthetic restoration after coronoradicular resection: mechanical behavior of the distal root remaining and surrounding bone.
abstract: OBJECTIVE
  This 3-dimensional finite element analysis evaluated: (1) the mechanical behavior of the distal root remaining after resection of the mesial root in a mandibular molar; (2) the consequences of the remaining distal root displacements on the bone; and (3) the role of the radicular post in the transmission of stress to the remaining root.
  
  
  METHODS
  Three-dimensional finite element analysis was performed.
  
  
  RESULTS
  The most reliable solution for the remaining root and surrounding bone consisted of fitting a conventional fixed partial denture with abutments on either side of the amputated root. The solution provided a single cantilever supported only by the residual root.
  
  
  CONCLUSIONS
  This analysis makes it possible to quantify, in the model situation, the risks taken for each prosthetic option.
authors.affiliation: Department of Dental Surgery, Faculty of Dentistry, University of Paris V, France.
authors.forename: D
authors.initials: D
authors.lastname: Augereau
authors.forename: L
authors.initials: L
authors.lastname: Pierrisnard
authors.forename: P
authors.initials: P
authors.lastname: Renault
authors.forename: M
authors.initials: M
authors.lastname: Barquins
mesh_terms: D000539:Alveolar Process / Q000502:physiology*; D001641:Bicuspid / Q000502:physiology; D000044:Dental Abutments; D003722:Dental Alloys / Q000737:chemistry; D003804:Dentin / Q000502:physiology; D003779:Denture Design; D003830:Denture, Partial, Fixed; D004548:Elasticity; D020342:Finite Element Analysis; D006801:Humans; D008334:Mandible; D008963:Molar / Q000601:surgery*; D016012:Poisson Distribution; D011176:Post and Core Technique; D015203:Reproducibility of Results; D012307:Risk Factors; D013314:Stress, Mechanical; D019228:Tooth Crown / Q000601:surgery*; D014092:Tooth Root / Q000502:physiology / Q000601:surgery*
chemical_list: D003722:Dental Alloys