Papers by Keyword: Tissue Response

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Authors: Chao Yong Zhao, Hu Li, T. Yuan, Hong Song Fan, Xing Dong Zhang, Zhong Wei Gu
Abstract: This study was carried out to investigate the effect of acid-alkali treatment and alkaliheat treatment on the push-out strength and tissue response of the porous titanium in vivo. Porous titanium with different treatment was implanted in dog bony site for 2 months and 5 months and the push-out strength was tested. At 2 months, the mean push-out strengths of the acid-alkali treated and alkali-heat treated porous titanium were 11.3 and 15 MPa, respectively. At 5 months, the values reached 29.8 and 35 MPa, respectively. Histological observation showed a close contact between implants and bone, and more bone tissue filled inside the pores of porous titanium increasing with implantation time. The results indicated higher bonding strength between bone and porous titanium in alkali-heat treated samples. Therefore, alkali-heat treatment can provide porous titanium implants with better fixation as a bone substitute for clinical use under load-bearing conditions.
Authors: Fumio Watari, Atsuro Yokoyama, Hironobu Matsuno, F. Saso, Motohiro Uo, Takao Kawasaki
Authors: Ulrich Gross, Ch. Müller-Mai, Georg Berger, Ute Ploska
Authors: K.S. Tweden, G.I. Mazé, T.D. McGee, C.L. Runyon, Y. Niyo
Authors: Ulrich Gross, Ch. Müller-Mai, Georg Berger, Ute Ploska
Authors: Ulrich Gross, Ch. Müller-Mai, Ch. Voigt, M. Mesgarian, Georg Berger, Ute Ploska
Authors: E.T. Uzumaki, C.S. Lambert, N.A. Batista, W.D. Belangero, Cecília A.C. Zavaglia
Abstract: Diamond-like carbon (DLC) coatings were deposited on titanium alloy (Ti-13Nb-13Zr) by plasma immersion process. DLC-coated Ti alloy and uncoated Ti were investigated in an animal model using the femoral condyles of rats for intervals of 4 and 12 weeks postoperatively. The interface between the implants and bones of the femoral condyles were analysed using scanning electron microscopy (SEM) by backscattering. The results showed that the DLC coatings were well tolerated in both periods.
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