Scientists have found a way to encourage teeth to repair themselves in a way that could see an end to fillings. The research team showed that a chemical can encourage cells in the dental pulp to heal small holes in mice teeth. This way they were able to repair 0.13mm holes in the teeth of the mice. A drug-soaked sponge was placed in the hole and then a protective coating was applied over the top. As the sponge broke down it was replaced by dentine, healing the tooth.
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