Functional tooth restoration utilising split germs through re-regionalisation of the tooth-forming field

Naomi Yamamoto, Masamitsu Oshima, Chie Tanaka, Miho Ogawa, Kei Nakajima, Kentaro Ishida, Keiji Moriyama, Takashi Tsuji

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Abstract

The tooth is an ectodermal organ that arises from a tooth germ under the regulation of reciprocal epithelial-mesenchymal interactions. Tooth morphogenesis occurs in the tooth-forming field as a result of reaction-diffusion waves of specific gene expression patterns. Here, we developed a novel mechanical ligation method for splitting tooth germs to artificially regulate the molecules that control tooth morphology. The split tooth germs successfully developed into multiple correct teeth through the re-regionalisation of the tooth-forming field, which is regulated by reaction-diffusion waves in response to mechanical force. Furthermore, split teeth erupted into the oral cavity and restored physiological tooth function, including mastication, periodontal ligament function and responsiveness to noxious stimuli. Thus, this study presents a novel tooth regenerative technology based on split tooth germs and the re-regionalisation of the tooth-forming field by artificial mechanical force.

Original languageEnglish
Article number18393
JournalScientific reports
Volume5
DOIs
Publication statusPublished - Dec 17 2015

ASJC Scopus subject areas

  • General

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    Yamamoto, N., Oshima, M., Tanaka, C., Ogawa, M., Nakajima, K., Ishida, K., Moriyama, K., & Tsuji, T. (2015). Functional tooth restoration utilising split germs through re-regionalisation of the tooth-forming field. Scientific reports, 5, [18393]. https://doi.org/10.1038/srep18393