Characterization and comparison of as received and clinically retrieved Bio-activeâ„¢ orthodontic archwiresGeorgieva, Mirela; Stoyanova-Ivanova, Angelina; Cherneva, Sabina; Petrov, Valeri; Petrova, Violeta; Andreeva, Laura; Mihailov, Valentin; Petkov, Alexander; Mikli, ValdekBiotechnology and biotechnological equipment2021 / p. 1301-1311 : ill https://doi.org/10.1080/13102818.2021.1964381 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Nanoindentation and surface characterization of clinically retrieved multi-force niti orthodontic archwiresCherneva, Sabina; Stoyanova-Ivanova, Angelina K.; Georgieva, Mirela; Andreeva, Laura A.; Petkov, Alexander; Petrov, Valeri G.; Petrova, Violeta P.; Mikli, ValdekRussian Journal of Biomechanics2020 / p. 240-256 https://doi.org/10.15593/RJBiomech/2020.3.02 https://ered.pstu.ru/index.php/rjb/article/view/2303 Journal metrics at Scopus Article at Scopus