Caring for your kitten's teeth
When you first get your kitten, she'll almost certainly have a full set of "baby teeth". These first teeth begin to appear at 3 weeks. At around 15 weeks they'll start to become loose and fall out, making way for her permanent adult teeth.
Just like babies, kittens may feel some discomfort when they teethe and may start chewing on things - sometimes even you. So make sure you provide some safe items for chewing, like soft rubber chew toys.
Over time, a cat's teeth accumulate tartar, just like our teeth do if they're not cleaned regularly. This can cause tooth deterioration, infection, gum disease, and tooth loss. That's why tooth brushing is essential. See more on Dental Care and toothbrushing