Tooth decay is a disease of the hard structures of the teeth caused by various bacteria, also known as dental caries. The resulting damage is what is known as a cavity. Symptoms of tooth decay include a toothache (commonly after sweet, hot or cold food or drinks) visible holes in the teeth, bad breath or a bad taste in the mouth. Pain is experienced in the advanced stages. Treatments available include fillings, crowns, root canals, painkillers and homoeopathy. Preventative practices such as good dental hygiene and regular dental visits are recommended.
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