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Molars = These are larger than premolars and extremely variable depending on the animal's diet. Like premolars they are used for crushing and grinding food, and like premolars their upper surfaces have ridges called cusps on them. Molars normally have three to five cusps and two or three roots. In humans we call the third molars, those closest to the back of the mouth 'Wisdom Teeth'.
Molars: Molars are the large teeth with four cusps located in the back of the mouth behind the premolars. Adults have twelve molars (four being wisdom teeth), with six in the upper and six in the lower arches; three on each side of the mouth. Molars have wide, flat surfaces for biting, chewing and grinding food.