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.
There should be 32 teeth in the human mouth, including four wisdom teeth. However, the average number is only 25.7, according to the Department of Health. Often teeth are taken out because of lack of space. Wisdom teeth, which appear between the ages of 18 and 25, are frequently removed for this reason.