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You have Enamel of teeth, made of calcium salt 96 % and 4 % organic fibers, Dentin 70% calcium salt and 30% organic fibers (mainly collagen) and cementum with 50% calcium salt and 50 % organic fibers ( mainly collagen ). So there is gradual transition from hard salt to salt plus fiber, making fixing of tooth possible to bone by periodontal ligament fixed with a joint called Gomphosis. So coming to the answer, Enamel, dentin,cementum are dead as they are calcium salt and organic fibers. Only pulp is live and two much live, that, we have to open dental colleges for teeth care. In short teeth are not made of dead cells.

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12y ago

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