Properties of axially loaded implant-abutment assemblies using digital holographic interferometry analysis

Brozović, Juraj and Demoli, Nazif and Farkaš, Nina and Sušić, Mato and Alar, Željko and Gabrić Pandurić, Dragana (2014) Properties of axially loaded implant-abutment assemblies using digital holographic interferometry analysis. = Properties of axially loaded implant-abutment assemblies using digital holographic interferometry analysis. Dental Materials, 30 (3). e17-e27. ISSN 0109-5641. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2013). Točan broj autora: 6.

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Abstract

Objective The aim of this study was to (i) obtain the force-related interferometric patterns of loaded dental implant-abutment assemblies differing in diameter and brand using digital holographic interferometry (DHI) and (ii) determine the influence of implant diameter on the extent of load-induced implant deformation by quantifying and comparing the obtained interferometric data. Methods Experiments included five implant brands (Ankylos, Astra Tech, blueSKY, MIS and Straumann), each represented by a narrow and a wide diameter implant connected to a corresponding abutment. A quasi-Fourier setup with a 25 mW helium-neon laser was used for interferometric measurements in the cervical 5 mm of the implants. Holograms were recorded in two conditions per measurement: a 10 N preloaded and a measuring-force loaded assembly, resulting with an interferogram. This procedure was repeated throughout the whole process of incremental axial loading, from 20 N to 120 N. Each measurement series was repeated three times for each assembly, with complete dismantling of the implant-loading device in between. Additional software analyses calculated deformation data. Deformations were presented as mean values ± standard deviations. Statistical analysis was performed using linear mixed effects modeling in R's lme4 package. Results Implants exhibited linear deformation patterns. The wide diameter group had lower mean deformation values than the narrow diameter group. The diameter significantly affected the deformation throughout loading sessions. Significance This study gained in vitro implant performance data, compared the deformations in implant bodies and numerically stated the biomechanical benefits of wider diameter implants. © 2013 Academy of Dental Materials.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): Biomechanics; Dental implant-abutment design; Dental implants; Dental material; Dental stress analysis; Interferometry; Loading; Materials testing
Subjects: NATURAL SCIENCES > Physics
TECHNICAL SCIENCE
BIOMEDICINE AND HEALTH > Dental medicine
Divisions: 1000 Department of Materials > 1010 Chair of Materials and Tribology
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Citations JCR: 0 (1.6.2015.)
Quartiles: Q1 (2013)
Citations SCOPUS: 0 (1.6.2015.)
Date Deposited: 01 Jun 2015 13:04
Last Modified: 01 Jun 2015 13:04
URI: http://repozitorij.fsb.hr/id/eprint/4215

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