The mouth seems to be a simple organ when, in fact, it is the most vital organ in contact with the outside world. Quick to adapt to change and rapidly healed when injured, the mouth shows emotion, allows communication, aids in lovemaking, fights off bacterial and viral invasions, and feeds us--giving us the energy needed to survive. It provides the passageway for food to nourish us and air to sustain us. Keeping the mouth healthy is a daily battle that can be won for a lifetime of good overall health, once you learn proper techniques to do so. In easy-to-understand detail, this book explains how these battles of the mouth can overcome the worst odds.