When should i start caring for my babys teeth and how do i go about doing it? At what age should i start using tooth brush and tooth paste?

At first, you may find it easier to clean your baby's teeth using a piece of clean gauze or muslin. Wrap it around your finger, put a tiny smear of toothpaste on it, and rub it around your baby's teeth.  If you'd rather use a baby toothbrush, pick one with soft nylon bristles and a small head. This will allow you to reach all parts of your baby's mouth easily and comfortably as each new tooth emerges. Look at the packaging to see what age range the brush is designed for.  Replace your baby's toothbrush regularly, about every one month to three months. If the bristles start to spread out, it's a sign that the toothbrush needs changing. Toothpaste should not be used on babies younger than the age of two, because babies cannot expectorate (spit it out).