Cats typically only replace their baby teeth once in their lifetime. This usually begins when kittens are 4-6 months old, with new teeth erupting around five months of age. The baby teeth are pushed out by the new teeth, which are generally the kitten's adult teeth. During teething, the gums around the canines may become slightly red, which is a sign of new teeth growing in.

Generally, after one to two weeks, you can see that two teeth may appear at the same time in the position of the cat's canine teeth, which are the largest and sharpest teeth. These are the canine teeth that are being replaced. At the same time, two fresh molars will gradually grow next to the canine teeth, and the old teeth will be gradually replaced and fall out.