CAD/CAM - international magazine of digital dentistry

Not only can stem cells be isolated from both adult and embryo tissues; they can also be kept in cultures as undifferentiated cells. Embryo stem cells have the ability to produce all the differenti- ated cells of an adult. Their potential can therefore beextendedbeyondtheconventionalmesodermal lineage to include differentiation into liver, kidney, muscle, skin, cardiac, and nerve cells (Fig. 2). The recognition of stem cell potential un- earthedanewageinmedicine:theageofregener- ative medicine. It has made it possible to consider the regeneration of damaged tissue or an organ that would otherwise be lost. Because the use of embryo stem cells raises ethical issues for obvious reasons, most scientific studies focus on the ap- plications of adult stem cells. Adult stem cells are not considered as versatile as embryo stem cells because they are widely regarded as multipotent, that is, capable of giving rise to certain types of specific cells/tissues only, whereas the embryo stem cells can differentiate into any types of cells/tissues. Advances in scientific research have determined that some tissues have greater diffi- combined with a bone marrow concentrate. Fig. 10a_A histological image of the site grafted with bank bone combined with bone marrow. Note the presence of considerable amounts of mineralised tissue. Fig. 10b_A histological image of the site grafted with bank bone not combined with bone marrow. Note the presence of low amounts of mineralised tissue. I 07 special _ science & practice I CAD/CAM 2_2013 Fig. 5d Fig. 5e Fig. 6 Fig. 5a Fig. 5b Fig. 5c Fig. 9 Fig. 10a Fig. 10b Fig. 7 Fig. 8a Fig. 8b