A method to facilitate the growth of desired bacteria in a human's mouth by using a bioadhesive strip that has an encapsulated feature containing at least one bacteria that has one of a pathogenic or toxic element excised using a clustered regularly interspaced short palindromic repeats (CRISPR)-CRISPR associated protein (Cas) system or a CRISPR from Prevotella and Francisella 1 (Cpf1) system, and in particular, using oral strips that adhere to surfaces in the oral cavity and that include at least one of xylitol, Lachnospira, Veillonella, Faecalibacterium and/or Rothia bacteria.
