What is a one-sentence summary of the following article?
Take care of your dog's teeth by getting into the habit of regular tooth brushing. Use a special dog toothbrush or a finger mitt. Wet the brush with water and gently rub it on the outer surfaces of the teeth. Once the dog is happy with this you can introduce a blob of dog toothpaste onto the brush. These pastes are tasty to dogs, don't need rinsing, and are free from substances harmful to dogs if swallowed, such as fluoride. Comb the dog through daily, and brush out at least once a week.Cavaliers have a soft, silky coat that can become knotted, especially when the dog is outdoors and gets leaves tangled in its fur. Regular brushing will keep the tangles under control, so they don't become matted. It's best check your dog over after each walk. Look for grass awns or burrs that may be lodged in fur around the ears or paws, in addition tangles and debris. Become familiar with your dog's body so you have a good idea of what a healthy body shape is for it. A dog in good body condition should have a waist line when viewed from above or the side, and you should be able to feel its ribs easily, but without the ribs standing out through the skin. If you inspect your dog's body regularly, for example when you brush it, then you will be able to spot changes more easily.

Summary:
Brush your Cavalier's teeth. Brush your dog regularly. Assess your dog's body while you brush it.