Fracasos biológicos y mecánicos en prótesis parcial fija. Revisión de literatura.

Abstract

Introduction: Fixed partial denture treatment involves the replacement and restoration of missing or lost teeth with artificial substitutes that are not removable from the mouth. Objective: To describe biological and mechanical failures in fixed prostheses. Materials and methods: A selection of 200 scientific articles was made, of which 30 articles were included for the final work. These articles were in English/Spanish, were in the 2003- 2021 range and quartile 1,2,3. Results: The results obtained for the study variable Secondary caries that indicate that secondary caries is the second most common biological factor, the rates were reported on the surface at the level of the abutment in fixed prosthesis, the abutment teeth that present greater fracture are those that are exposed to a greater occlusal load, The ten studies that analyzed the loss of retention in the studies were said to occur when the restoration is dislodged from the preparation by forces parallel to the insertion axis, which these restorations must have sufficient resistance to the vertical forces that are in function. Conclusions: The results of this study indicated that the main complications in the fixed partial prosthesis are the loss of retention followed by secondary caries in the abutment teeth. There were also complications related to patients with fixed prosthesis who presented periodontal disease caused by the existence of an overcontour, a bad location of the fixed prosthesis and poor oral hygiene of the patient.