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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Surface Damage on Dental Implants with Release of Loose Particles after Insertion into Bone

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Author(s):
Senna, Plinio [1] ; Cury, Altair Antoninha Del Bel [1] ; Kates, Stephen [2] ; Meirelles, Luiz [3]
Total Authors: 4
Affiliation:
[1] Univ Estadual Campinas, Piracicaba Dent Sch, Dept Prosthodont & Periodontol, Campinas, SP - Brazil
[2] Univ Rochester, Dept Orthopaed, Rochester, NY 14620 - USA
[3] Univ Rochester, Eastman Dent Ctr, Div Prosthodont, Rochester, NY 14620 - USA
Total Affiliations: 3
Document type: Journal article
Source: CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH; v. 17, n. 4, p. 681-692, AUG 2015.
Web of Science Citations: 17
Abstract

BackgroundModern dental implants present surface features of distinct dimensions that can be damaged during the insertion procedure into bone. PurposeThe aims of this study were (1) to quantify by means of roughness parameters the surface damage caused by the insertion procedure of dental implants and (2) to investigate the presence of loose particles at the interface. Materials and MethodsThree groups of dental implants representing different surface topographies were inserted in fresh cow rib bone blocks. The surface roughness was characterized by interferometry on the same area before and after the insertion. Scanning electron microscopy (SEM)-back-scattered electron detector (BSD) analysis was used to identify loose particles at the interface. ResultsThe amplitude and hybrid roughness parameters of all three groups were lower after insertion. The surface presenting predominance of peaks (S-sk {[}skewness]>0) associated to higher structures (height parameters) presented higher damage associated to more pronounced reduction of material volume. SEM-BSD images revealed loose titanium and aluminum particles at the interface mainly at the crestal cortical bone level. ConclusionsShearing forces during the insertion procedure alters the surface of dental implants. Loose metal particles can be generated at bone-implant interface especially around surfaces composed mainly by peaks and with increased height parameters. (AU)

FAPESP's process: 11/23269-0 - Surface characterization of cold plasma nitrided titanium and in vivo evaluation of bioactive nanoparticles addition on implants with different roughness
Grantee:Plinio Mendes Senna
Support Opportunities: Scholarships abroad - Research Internship - Doctorate