Histological review of the human cellular cementum with special reference to an alternating lamellar pattern.

Odontology
Tsuneyuki YamamotoNorio Amizuka

Abstract

Cementum is mineralized tissue with collagen fibrils as its major organic component, and it can be roughly classified into acellular and cellular cementum. The latter generally consists of a stack of cellular intrinsic fiber cementum layers, in which intensely and weakly stained lamellae (each about 2.5 microm thick) alternate in light microscopic observations. It has been suggested that the alternate lamellar pattern results from periodic changes of the intrinsic fiber arrangement, but owing to the difficulty of observing the fibril arrangement three dimensionally, details were not understood until recently. The NaOH-maceration method has been developed to overcome this difficulty. For the past two decades, we have studied the structure and development of cementum by scanning electron microscopy using NaOH-maceration, as well as by light and transmission electron microscopy, and have accumulated a significant amount of data with regard to the structure and formation of cementum. In light of these data, we have arrived at the following conclusions: (1) The alternate lamellar pattern conforms to the twisted plywood model, in which collagen fibrils rotate regularly in the same direction to form two alternating types of lamellae; ...Continue Reading

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Citations

Mar 1, 2012·Journal of Electron Microscopy·Tsuneyuki YamamotoNorio Amizuka
Jul 30, 2016·Progress in Biomaterials·Sergey V Dorozhkin
Nov 6, 2013·Science & Justice : Journal of the Forensic Science Society·Denice Higgins, Jeremy J Austin
Aug 19, 2014·Journal of the Mechanical Behavior of Biomedical Materials·Andrew T JangSunita P Ho
Nov 1, 2012·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Chong Huat SiarKok Han Ng
Mar 17, 2015·International Journal of Legal Medicine·T ColardA Bécart
Oct 23, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Min Guk Kim, Chan Ho Park
Dec 29, 2020·Journal of Dental Research·A NagasakiM J Somerman

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