An object, usually a metal bar, placed into the mouth of a horse, held on by a bridle and used with reins to direct and guide the animal. Occasionally made of other materials, including rubber.May be solid or jointed and may have rollers or other attachments added, usually in the center.
There are 32 teeth in the human mouth, including the wisdom teeth at the back that most people have removed. But how many of them do we seriously need? This question has exercised dentists since the dawn of the NHS with its cash-limited budget for treatment.
A normal adult mouth has 32 teeth, which (except for wisdom teeth) have erupted by about age 13: â¢ Incisors (8 total): The middlemost four teeth on the upper and lower jaws. â¢ Canines (4 total): The pointed teeth just outside the incisors. â¢ Premolars (8 total): Teeth between the canines and molars. â¢ Molars (8 total): Flat teeth in the rear of the mouth, best at grinding food. â¢ Wisdom teeth or third molars (4 total): These teeth erupt at around age 18, but are often surgically removed to prevent displacement of other teeth.