Multiple developmental origin of the upper incisor in mouse: histological and computer assisted 3-D-reconstruction studies
Language English Country Spain Media print
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
8180001
Knihovny.cz E-resources
- MeSH
- Epithelium anatomy & histology embryology MeSH
- Mice, Inbred ICR MeSH
- Mice MeSH
- Image Processing, Computer-Assisted MeSH
- Incisor anatomy & histology embryology MeSH
- Dental Enamel anatomy & histology embryology MeSH
- Animals MeSH
- Check Tag
- Mice MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
Heads of 11-15-day-old mouse embryos were cut in frontal serial sections. Early development of the maxillary incisor was analyzed using series of thick (5 and 7 microns) and semi-thin (1 micron) frontal sections and computer assisted 3-D-reconstructions of the epithelial component. The enamel organ of the mouse maxillary incisor was found to be a complex structure of multiple origin, involving several epithelial anlagen--primary dental laminae--, which could hypothetically correspond to the 5 upper incisors of early mammals. The transitory existence of at once distinct and then fusing dental primordia could reflect heterochronic changes in ontogeny which might be related to phyletic trends.
Three-dimensional analysis of the early development of the dentition
