Dogs should pay attention to their diet and oral hygiene during the period when their teeth are falling out and changing. They should feed some foods that are easier to chew to avoid damaging the dog’s teeth. You also need to prepare some molar sticks or large bones for the convenience of the dog. When a dog grinds its teeth, it is also necessary to supplement the dog with calcium; pay attention to dental hygiene and clean the dog's teeth once a day to avoid food residues in the gaps between the teeth.