Other specific conditions relating to wear include a "step mouth", where one molar or premolar grows longer than the others in that jaw, normally because the corresponding tooth in the lilith nude borderlands jaw is missing or broken, and therefore could not wear down its opposite, a "wave mouth", where at least two molars or premolars are higher than the others, so that, when viewed from the side, the grinding surfaces produce a wave-like pattern rather than a straight line, leading to periodontal disease and excessive wear of some of the teeth, and a "shear mouth" when the grinding surfaces of the molars or premolars are severely sloped on each individual tooth so the inner side of the teeth are much higher or lower than the outer side of the teethseverely affecting chewing. These sharp edges can reduce chewing efficiency of the teeth, interfere with jaw motion, and in extreme cases cups with teeth on the bottom cut the tongue or cheek, making eating and riding painful. Very old horses, if lacking molars to chew, may need soft feeds to maintain adequate levels of nutrition. As grazing animals, good dentition is essential to survival, and continued grazing creates specific patterns of wear, which can be used along with patterns of eruption to estimate the age of the horse.
These sharp edges can reduce chewing efficiency of the teeth, interfere with jaw motion, and in extreme cases can cut the tongue or cheek, making eating and riding painful. Estimating the age of a horse by examining its teeth is a common practice. If the bridle is adjusted so that the bit rests too low, or too high, it may push against the teeth and cause discomfort.
Most authorities recommend regular checks by a professional, normally six monthly or annually. It is still visible after the cup and enamel spot have been worn away. A person without a veterinary degree who performs this service is called a horse floater or equine dental technician.