Odontoblast process Articles & Odontoblast process Websites

An odontoblast process is an extension of a cell called an odontoblast, which forms dentin in a tooth. The odontoblast process forms during dentinogenesis and results from a part of the odontoblast staying in its location as the main body of the odontoblast moves toward the center of the tooth's pulp. The odontoblast process causes the secretion of hydroxyapatite crystals and mineralization of the matrix secreted by the odontoblasts.

[edit] References

• Cate, A.R. Ten. Oral Histology: development, structure, and function. 5th ed. 1998. ISBN 0-8151-2952-1.

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Odontoblast processes are not straight in their whole course.They arises at 90 degree angles at the pulpal border.It has two curves in its course.The first curve is directed towards apically and second one is a sinusoidal curve facing towards coronally. Odontobloast process is thick at pulpal surface and decrease almost 1 micron near dentinoenamel junction.Oontoblast process has inner microfilaments called as "Tome's fiber".According to some investigators,there is an inner lining of odontoblast process known as "LAMINA LIMITANS".Lamina limitans is made up of glycoseaminoglycanes.

Odontoblast processes are the weak point of dentine.Because infection such as caries can be easily spread from this wide source.These processes provides a pathway to bacterias.

DR.HARSH SHAH