dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | PI Brånemark Institute | |
dc.date.accessioned | 2018-12-11T17:01:00Z | |
dc.date.available | 2018-12-11T17:01:00Z | |
dc.date.created | 2018-12-11T17:01:00Z | |
dc.date.issued | 2017-12-01 | |
dc.identifier | Journal of Prosthodontics, v. 26, n. 8, p. 656-658, 2017. | |
dc.identifier | 1532-849X | |
dc.identifier | 1059-941X | |
dc.identifier | http://hdl.handle.net/11449/172567 | |
dc.identifier | 10.1111/jopr.12456 | |
dc.identifier | 2-s2.0-84958811507 | |
dc.description.abstract | Purpose: To evaluate the effectiveness of abutment screws coated with liquid Vaseline on the screw-joint stability of yttria-stabilized tetragonal zirconia (Y-TZP) abutment systems. Materials and Methods: Forty Y-TZP prefabricated abutments, 20 Neodent and 20 Bionnovation, were tightened to 20 Ncm on their respective external hexagon implants, and divided into four groups (n = 10) according to the screws: coated with Vaseline or uncoated. The removal torque (RT) value of the abutment screw was measured before and after loading. A cyclic loading (0.5 × 106 cycles; 15 Hz) between 11 and 211 N was applied. Means were compared using a repeated-measures ANOVA (α = 0.05). Results: There was no significant difference between coated and uncoated screws (p = 0.822). Significant differences were found between the abutment systems (p < 0.001). There was a significant effect of cyclic loading (p < 0.001). Conclusions: Coated and uncoated screws presented similar effectiveness in maintaining preload. Clinical Relevance: The liquid lubricant used in this study does not influence the stability of Y-TZP single-implant restorations. | |
dc.language | eng | |
dc.relation | Journal of Prosthodontics | |
dc.rights | Acesso restrito | |
dc.source | Scopus | |
dc.subject | cyclic loading | |
dc.subject | dental abutments | |
dc.subject | Dental implants | |
dc.subject | screw preload | |
dc.subject | single-tooth | |
dc.subject | zirconium | |
dc.title | Influence of Liquid Lubrication on the Screw-Joint Stability of Y-TZP Implant Abutment Systems | |
dc.type | Artículos de revistas | |