• J Formos Med Assoc · Aug 2008

    Cytotoxicity analysis of strontium ranelate on cultured human periodontal ligament fibroblasts: a preliminary report.

    • Kürşat Er, Zübeyde Akin Polat, Fatih Ozan, Tamer Taşdemir, Ufuk Sezer, and Seyda Hergüner Siso.
    • Department of Endodontics, School of Dentistry, Karadeniz Technical University, Trabzon, Turkey.
    • J Formos Med Assoc. 2008 Aug 1; 107 (8): 609-15.

    Background/PurposeThe aim of this study was to analyze the cytotoxicity of strontium ranelate (SR) on human periodontal ligament fibroblasts (PDL cells) in vitro.MethodsPDL cells were obtained from healthy human third molars and cultured in Dulbeccos Modified Eagles Medium. The experimental groups were: G1, cultures treated with fresh medium (control); and G2, G3, G4 and G5: treated with SR at 20, 10, 5 and 2.5 mg/mL, respectively. The experimental times were 1, 6, 12 and 24 hours (short-term) for viability, and 2, 4, 6 and 8 days (long-term) for cell survival. The cells were counted using a hemocytometer. Data were then analyzed by one-way ANOVA and Tukey's tests (p < 0.05).ResultsCultures treated with the highest SR concentrations (G2 and G3) had significantly lower cell viability and cell numbers (p < 0.05) than those in G1, G4 and G5. SR at 2.5 mg/mL was non-cytotoxic to PDL cells.ConclusionSR was non-toxic at appropriate concentrations. Preclinical tests are needed to further assess its safety and effectiveness for tooth resorption prior to clinical use.

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