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Oxidized, bioactive implants are rapidly and strongly integrated in bone. Part 1 – experimental implants
Author(s) -
Sul YoungTaeg,
Jeong Yongsoo,
Johansson Carina,
Albrektsson Tomas
Publication year - 2006
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/j.1600-0501.2005.01230.x
Subject(s) - dentistry , implant , materials science , medicine , surgery
Objectives: The study presented was designed to investigate the speed and the strength of osseointegration of oxidized implants at early healing times in comparison which machined, turned implants. Material and methods: Screw‐shaped titanium implants were prepared and divided into two groups: magnesium ion incorporated, oxidized implants (Mg implants, n =10) and machined, turned implants (controls, n =10). Mg implants were prepared using micro‐arc oxidation methods. Surface oxide properties of implants such as surface chemistry, oxide thickness, morphology/pore characteristics, crystal structures and roughness were characterized with various surface analytic techniques. Implants were inserted into the tibiae of ten New Zealand white rabbits. After a follow‐up period of 3 and 6 weeks, removal torque (RTQ), osseointegration speed (ΔRTQ/Δhealing time) and integration strength of implants were measured. Bonding failure analysis of the bone‐to‐implant interface was performed. Results: The speed the and strength of osseointegration of Mg implants were significantly more rapid and stronger than for turned implants at follow‐up periods of 3 and 6 weeks. Bonding failure for Mg implants dominantly occurred within the bone tissue, whereas bonding failure for turned implants mainly occurred at the interface between implant and bone. Conclusions: Oxidized, bioactive implants are rapidly and strongly integrated in bone. The present results indicate that the rapid and strong integration of oxidized, bioactive Mg implants to bone may encompass immediate/early loading of clinical implants.