Tooth-bone morphogenesis during postnatal stages of mouse first molar development

0360057 - ÚŽFG 2012 RIV US eng J - Journal Article
Lungová, V. - Radlanski, R.J. - Tucker, A. S. - Renz, H. - Míšek, Ivan - Matalová, Eva
Tooth-bone morphogenesis during postnatal stages of mouse first molar development.
Journal of Anatomy. Roč. 218, č. 6 (2011), s. 699-716. ISSN 0021-8782. E-ISSN 1469-7580
R&D Projects: GA ČR GC524/08/J032; GA MZd(CZ) NT11420
Institutional research plan: CEZ:AV0Z50450515
Keywords : apoptosis * dentition * development
Subject RIV: EA - Cell Biology
Impact factor: 2.370, year: 2011

The first mouse molar (M1) is the most common model for odontogenesis, with research particularly focused on prenatal development. However, the functional dentition forms postnatally, when the histogenesis and morphogenesis of the tooth is completed, the roots form and the tooth physically anchors into the jaw. In this work, M1 was studied from birth to eruption, assessing morphogenesis, proliferation and apoptosis, and correlating these with remodeling of the surrounding bony tissue. The M1 completed crown formation between postnatal (P) days 0-2, and the development of the tooth root was initiated at P4. From P2 until P12, cell proliferation in the dental epithelium reduced and shifted downward to the apical region of the forming root. In contrast, proliferation was maintained or increased in the mesenchymal cells of the dental follicle. At later stages, before tooth eruption (P20), cell proliferation suddenly ceased.
Permanent Link: http://hdl.handle.net/11104/0197699