It is important not to use a human toothpaste to clean your pets teeth for several reasons. Human toothpaste - foams in the mouth too much and animals dislike this: contains high levels of fluoride, we spit toothpaste residues out, animals swallow so fluoride ingestion could reach toxic levels. Animals prefer meaty flavours generally, so specially flavoured toothpaste, enhanced with enzymes and antibacterial agents are best for your pet's teeth.