title: Influence of Abutment Angle on Implant Strain When Supporting a Distal Extension Removable Partial Dental Prosthesis: An In Vitro Study.
abstract: OBJECTIVE
  This study evaluated the impact of angled abutments on strain in implants supporting a distal extension removable partial denture.
  
  
  METHODS
  An in vitro model of an implant supporting a distal extension removable partial denture was developed. The implant was positioned with a 17- or 30-degree mesial inclination, with either a healing abutment or a corrective multiunit abutment. Levels of strain under load were compared, and the results were compared using t test (P = .05).
  
  
  RESULTS
  Correcting angulation with a multiunit angled abutment significantly decreased strain (P < .05) when compared with a healing abutment.
  
  
  CONCLUSIONS
  An angled abutment decreased the strain on an inclined implant significantly more than a healing abutment when loaded under a distal extension removable partial denture.
authors.forename: Kiyotaka
authors.initials: K
authors.lastname: Hirata
authors.forename: Toshihito
authors.initials: T
authors.lastname: Takahashi
authors.forename: Akiko
authors.initials: A
authors.lastname: Tomita
authors.forename: Tomoya
authors.initials: T
authors.lastname: Gonda
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Maeda
mesh_terms: D001696:Biomechanical Phenomena; D059605:Dental Implant-Abutment Design; D019094:Dental Prosthesis, Implant-Supported; D003799:Dental Stress Analysis; D003832:Denture, Partial, Removable; D006801:Humans; D066298:In Vitro Techniques