DATA EXTRACTION: Totally 110 literatures about toothtissue engineering were collected, and 31 typical ones were selected for review.
资料提炼：共收集到110篇有关牙组织工程的文章，选取其中有代表性的31篇进行综述。
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They could be employed, Mr Murphy suggests, to place liver cells on a pre-built, liver-shaped scaffold or to form layers of lining and connective tissue that would grow into a tooth.