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World J Stomatol. Aug 20, 2013; 2(3): 35-39
Published online Aug 20, 2013. doi: 10.5321/wjs.v2.i3.35
Table 1 Types of dental pulp stem cells and their properties
Type of stem cells after birthDental stem cell propertiesSignaling inputs for reparative dentin formation
Stem cells permanently present in the adult tooth: Dental pulp stem cell Periodontal ligament stem cells Apical papilla stem cells Stem cells present in deciduous tooth: Exfoliated deciduous teeth stem cells Stem cells present during crown formation: Dental follicule stem cellsSelf-renewal Ability to enter in mitosis in response to appropriate signals and to differentiate towards odonto/osteogenic cells Long-term survival and maintenance of reparative capacity Distinct subpopulations expressing markers of mesenchymal stem cells of the bone marrow (STRO-1, CD44, CD 106, 3G5, CD146, CD90, Sca-1…)Tooth injury may promotes stem cell recruitment by: Local secreted factors: bioactive extracellular matrix molecules Ca2+ release Mechanical inputs: changes in matrix elasticity Diffusible signals emanating from stromal, inflammatory, circulating… cells