title: Influence of indexed abutments on the fracture resistance of internal conical dental implants.
abstract: The aim of this study was to evaluate the influence of abutments with a prosthetic index on the fracture resistance of Morse taper dental implants. Morse taper implants were divided into 2 groups (n = 5 per group): a group with an indexed implant and a nonindexed abutment (solid Morse taper universal post; WIS group), and a group with an indexed implant and an indexed abutment (WIP group). Both groups were subjected to bending tests for fracture strength until 5 mm of displacement or implant fracture occurred. Statistical analysis was performed using the Student t test (α = 0.05). There was no statistically significant difference between the mean fracture values, which were 305.8 N and 318.6 N for the WIS group and WIP group, respectively. The presence of a prosthetic index on Morse taper abutments did not influence the resistance to fracture.
authors.forename: Karla
authors.initials: K
authors.lastname: Zancopé
authors.forename: Caio César Dias
authors.initials: CC
authors.lastname: Resende
authors.forename: Lucas Nascimento
authors.initials: LN
authors.lastname: Tavares
authors.forename: Flávio Domingues das
authors.initials: FD
authors.lastname: Neves
mesh_terms: D000044:Dental Abutments / Q000592:standards; D059605:Dental Implant-Abutment Design / Q000592:standards; D015921:Dental Implants / Q000592:standards; D019232:Dental Restoration Failure; D003799:Dental Stress Analysis; D006801:Humans
chemical_list: D015921:Dental Implants
keywords: biomechanics; dental implants; mechanical stress; prosthetic index