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- BookAnn Wennerberg, Tomas Albrektsson, Ryo Jimbo, editors.Summary: This book provides the reader with the knowledge required in order to understand the chemical, physical, mechanical, and topographical aspects of implant surfaces, as well as their impact on the biological response. Common ways to modify implant surfaces are described, and methods for the evaluation of surface properties are presented in an easy-to-read style. Experimental results that have contributed to surface modifications relevant for commercial available implants are presented, with emphasis on in vivo and clinical studies. While the focus is primarily on surface modifications at the micrometer and nanometer levels, alterations at the millimeter level are also covered, including thread designs and their possible influence on stress distribution. In addition, it is analyzed how surface alterations have changed the clinical long-term results for certain groups of patients. Care is taken to ensure that assessments are well balanced and draw attention to the potential disadvantages of different surfaces; for example, surfaces that may be more prone to biofilm accumulation are identified, with discussion of the clinical evidence.
- ArticleMekki F, Ivić J.Jugosl Ginekol Opstet. 1979 Jan-Feb;18(1):15-9.The study of the size of Trichomonas vaginalis in 100 patients with dysplasia and intraepithelial or invasive planocellular carcinoma of the uterine cervix and in 100 controls with trichomoniasis alone has shown that the parasites are of a significantly smaller diameter in carcinoma in situ (9.57 +/- 0.35 mu) and invasive carcinoma (10.44 +/- 0.66 mu) than in dysplasia (13.71 +/- 0.35 mu). The analysis of the variance has shown that this difference is statistically significant. In the control group with trichomoniasis alone, the diameter of Trichomonas vaginalis was twice as large (21.46 +/- 0.66 mu) as that in carcinoma and still larger than that in dysplasia. This indicates that small forms of Trichomonas vaginalis are more pathogenic than large ones and might be one of the causative agents of the atypical transformation of the squamous epithelium of the uterine cervix.