TY - JOUR AU - WU, Li-xia AU - ZHANG, Li-li AU - WANG, Yuan-qin AU - LI, Lei AU - LIANG, Shan-shan PY - 2016 TI - Effects of 4 kinds of dental metal alloy extraction on expression of inflanmatory cytokine in the inflamed periodontal tissue JO - Journal of Prevention and Treatment for Stomatological Diseases SN - 2096-1456 SP - 449 EP - 453 VL - 24 IS - 8 AB - ObjectiveTo evaluate the inflammatory cytokine expressions of inflamed human gingival fibroblast cells (iHGFs) stimulated in 4 types of dental metal extractions.MethodsInflamed gingival tissues from 10 patients with periodontitis were collected, and primary iHGFs were cultured. The cells were stimulated by Co-Cr, Ti alloy, pure Ti and AuPd alloy extractions respectively, and DMEM was used as blank control. Protein productions of pro-inflammatory mediators and related mRNA expressions were measured with ELISA and RT - PCR. Statistics were tested with Wilcoxon matched-pairs test.ResultsELISA and RT-PCR results showed the protein and mRNA expressions of interleukin-6, interleukin-1β, tumor necrosis factor-α in Ni-Cr and Ti alloy groups were both higher than the control group (z = 2.803, P =0.005). However, there was no significant difference in pure Ti and Au-Pd groups compared with the control group (P>0.05).ConclusionPure Ti and Au-Pd alloy have a better biocompatibility than Co-Cr and Ti alloy in inflamed periodontal tissues. UR - https://doi.org/10.12016/j.issn.2096-1456.2016.08.003 DO - 10.12016/j.issn.2096-1456.2016.08.003