Validation of the microarray data by qPCR.

<p>Relative gene expression fold change (FC) quantified by qPCR in Li+ or Ctrl peri-implant bone, 28 day vs. 7, postoperatively compared with Affymetrix FC (- = undetectable expression). Unpaired Student's t-test or Mann-Whitney test was used for statistical significance analyses (* p<0.05, ** p<0.01, ***p<0.001).