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Microrobotized blasting improves the bone-to-textured implant response. A preclinical in vivo biomechanical study
Department of Biomaterials and Biomimetics, New York University, 433 1st Ave., Room 844, New York, NY 10010, USA; Director for Research, Department of Periodontology and Implant Dentistry, New York University College of Dentistry, 345E 24th Street, New York, NY 10010, USA; Affiliated Faculty, Department of Engineering, New York University Abu Dhabi, PO Box 129188, Abu Dhabi, United Arab Emirates.
Department of Dentistry, Division of Oral and Maxillofacial Surgery, Universidade Federal de Santa Catarina, R. Eng. Agronômico Andrei Cristian Ferreira, s/n-Trindade, Florianópolis, SC 88040-900, Brazil.
Department of Periodontology, University of Florida at Gainesville, 1395 Center Dr, Gainesville, FL 32610, USA.
Malmö högskola, Faculty of Odontology (OD).
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2016 (English)In: Journal of The Mechanical Behavior of Biomedical Materials, ISSN 1751-6161, E-ISSN 1878-0180, Vol. 56, p. 175-182Article in journal (Refereed)
Abstract [en]

This study evaluated the effect of microrobotized blasting of titanium endosteal implants relative to their manually blasted counterparts. Two different implant systems were utilized presenting two different implant surfaces. Control surfaces (Manual) were fabricated by manually grit blasting the implant surfaces while experimental surfaces (Microblasted) were fabricated through a microrobotized system that provided a one pass grit blasting routine. Both surfaces were created with the same similar to 50 gm average particle size alumina powder at similar to 310 KPa. Surfaces were then etched with 37% HCl for 20 min, washed, and packaged through standard industry procedures. The surfaces were characterized through scanning electron microscopy (SEM) and optical interferometry, and were then placed in a beagle dog radius model remaining in vivo for 3 and 6 weeks. The implant removal torque was recorded and statistical analysis evaluated implant system and surface type torque levels as a function of time in vivo. Histologic sections were qualitatively evaluated for tissue response. Electron microscopy depicted textured surfaces for both manual and microblasted surfaces. Optical interferometry showed significantly higher S-a, S-q, values for the microblasted surface and no significant difference for S-ds and S-dr values between surfaces. In vivo results depicted that statistically significant gains in biomechanical fixation were obtained for both implant systems tested at 6 weeks in vivo, while only one system presented significant biomechanical gain at 3 weeks. Histologic sections showed qualitative higher amounts of new bone forming around microblasted implants relative to the manually blasted group. Microrobotized blasting resulted in higher biomechanical fixation of endosteal dental implants and should be considered as an alternative for impant surface manufacturing.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 56, p. 175-182
Keywords [en]
Implant, Surface, Bone, Mechanical, Healing chamber, Histology
National Category
Dentistry
Identifiers
URN: urn:nbn:se:mau:diva-15347DOI: 10.1016/j.jmbbm.2015.11.002ISI: 000371554200018PubMedID: 26703231Scopus ID: 2-s2.0-84954163145Local ID: 22937OAI: oai:DiVA.org:mau-15347DiVA, id: diva2:1418868
Available from: 2020-03-30 Created: 2020-03-30 Last updated: 2024-06-17Bibliographically approved

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