Dogs lose their teeth one by one. Dogs will lose their teeth when they are 3-6 months old. The deciduous teeth will slowly fall out, and new teeth will grow slowly. During the period when the dog's teeth are changing, it will feel uncomfortable. It is recommended to prepare teething sticks or teething toys for the dog at this time to alleviate the discomfort when the dog's teeth fall out.

Notes on changing teeth for dogs:

1. Organize items at home. Be sure to put away things that are easily accessible and harmful, such as electrical power strips, wires, potted plants, detergents, etc.

2. Provide teeth grinding items. You can choose some rubber toys for dogs to grind their teeth or teething snacks that can be eaten. It is not recommended to use large hard bones.

3. Relieve the pain of teething. Tie a knot with a wet towel and freeze it, then give it to your dog to bite to relieve pain.

4. Observe the loss of old teeth. If you find an old tooth that is wobbly but won't fall out, the owner can help. If it still won't fall out, go to a doctor to extract the tooth.

5. Pay attention to diet and calcium supplement. Try to choose some natural dog food with high calcium content, high protein and low fat for your dog to effectively prevent the dog from having double rows of teeth or uneven permanent teeth.