Periodontitis, impacting 50 percent of adults in the United States, is a chronic destructive inflammatory disease that affects the tooth-supporting tissues. The current treatments in the market mainly deal with bacteria elimination, and the regeneration of periodontal tissues remains a challenge. Sal-Patch offers a periodontal microarray patch that enhances the local effectiveness and sustainably delivers therapeutics for inhibiting the bacteria growth while modulating immune cell functions. Together, it both repairs the receding gum line and reverses bone degeneration. Periodontitis is especially prevalent in impoverished communities, and Sal-Patch wants to mitigate the issue with its low-cost, accessible dental patch.