Tissue interactions in embryonic mouse tooth germs. II. The inductive role of the dental papilla.

The influence of the dental papilla on the development of tooth shape in embryonic mouse tooth germs.

Studies of epithelio-mesenchymal interactions during embryonic organogenesis have led to a number of conclusions regarding the nature of cellular and tissue differentiation (McLoughlin, 1963; Grobstein, 1967). For example, the importance of both the epithelium and the mesenchyme and the dependence of some systems on a limited number of specific mesenchymal tissues have been pointed out (Hilfer,...

The homeobox gene Hox 7.1 has specific regional and temporal expression patterns during early murine craniofacial embryogenesis, especially tooth development in vivo and in vitro.

Hox 7.1 is a murine homeobox-containing gene expressed in a range of neural-crest-derived tissues and areas of putative epithelial-mesenchymal interactions during embryogenesis. We have examined the expression of Hox 7.1 during craniofacial development in the mouse embryo between days 8 and 16 of development. Whereas facial expression at day 10 of gestation is broadly localised in the neural-cr...

بررسی هیستولوژیکی اثرات نانو دی اکسید تیتانیوم بر روی رشد و نمو جوانۀ اولین دندان آسیاب جنین موش نژاد NMRI در شرایط in vivo

Nowadays, with the applications of titanium dioxide nanoparticles (TiO2-NPs) in pharmacy, food industry, cosmetics, toothpaste and sunscreens, pregnant women are exposed to nanoparticles. Since tooth development is vuln-erable to environmental impacts and mandibular first molar bud develops before maxillary first molar bud, in this ex-perimental study the effects of TiO2-NPs on the development ...

Tooth Regeneration with Stem Cell Sources

Introduction: During the last decade, advances in tissue engineering and stem cell-based tooth regeneration have provided realistic and attractive means of replacing lost or damaged teeth. The first adult stem cells isolated from dental tissues were dental pulp stem cells (DPSCs). When transplanted with hydroxyl apatite/tri calcium phosphate (HA/TCP) powder, they formed a dentin-like structure...

Tissue interactions in embryonic mouse tooth germs. I. Reorganization of the dental epithelium during tooth-germ reconstruction.