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				Sensitivity. Since protective enamel is wearing away, you may feel a twinge of pain when you consume hot, cold, or sweet foods and drinks. 
						   
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				Discoloration. Teeth can become slightly yellow because the dentin is exposed. 
						   
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				Rounded Teeth. Your teeth may have a rounded or "sand-blasted" look. 
						   
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				Transparency. Your front teeth may appear slightly transparent near the biting edges. 
						   
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				Advanced Discoloration. Teeth may become more yellow as more dentin is exposed because of the loss of tooth enamel. 
						   
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				Cracks. Small cracks and roughness may appear at the edges of teeth. 
						   
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				Severe Sensitivity. As more enamel is worn away, teeth become increasingly sensitive. 
						   
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				Cupping. Small dents may appear on the chewing surface of the teeth. Fillings also might appear to be rising up out of the tooth.