Fracture of abutment screw supporting a cemented implant-retained prosthesis with external hexagon connection: a case report with sem evaluation

• Main Authors: Mariana Diniz Bisi Santos (Author), Arthur Braga Pfeifer (Author), Marcos Rogério Pupo Silva (Author), Claudio Luiz Sendyk (Author), Wilson Roberto Sendyk (Author)
• Format: Book
• Published: University of São Paulo, 2007-04-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

One of the causes of implant failures in cemented implant-retained prostheses is the fracture of abutment screw or UCLA abutment. This article reports a case of simultaneous fracture of two UCLA abutments screws occurring in an implant-supported prosthesis placed in the mandibular molar region. The...