Dentin Composition and Variations Quiz

Mantle dentin and Circumpulpal dentin

Root dentin is formed at a later stage but before eruption. It requires Hertwig’s Root Sheath to induce differentiation of pulpal cells.

2° dentin is structurally different from 1° dentin as it has fewer and more irregular odontoblastic tubules and less mineralization.

<p>The main function of mantle dentin is to act as a shock absorber close to the crown and DEJ.</p> Signup and view all the answers

<p>Odontoblasts secrete both the predentin matrix and the components that cause mineralization.</p> Signup and view all the answers

<p>3° dentin is laid down in response to damage.</p> Signup and view all the answers

<p>Tome's granular layer</p> Signup and view all the answers

<p>Globular dentin forms when predentin mineralizes in small spherical areas (calcospherites) and then fuses together to completely mineralize.</p> Signup and view all the answers

<p>Imbrication lines of Von Ebner</p> Signup and view all the answers

<p>Contour lines of Owen indicate long term physiological alterations through the condensation of imbrication lines.</p> Signup and view all the answers

<p>Interglobular dentin</p> Signup and view all the answers

<p>From the DEJ into the cell body and sit in the dentinal tubule.</p> Signup and view all the answers