Any chance they are mouth-breathing at night? It can lead to a shift in pH in the mouth which may increase risk of cavities [1] [1] https://pubmed.ncbi.nlm.nih

Any chance they are mouth-breathing at night? It can lead to a shift in pH in the mouth which may increase risk of cavities [1] [1] https://pubmed.ncbi.nlm.nih.gov/26666708/ https://pubmed.ncbi.nlm.nih.gov/26666708/