Is Pulp Inflammation a Prerequisite for Pulp Healing and Regeneration?

The importance of inflammation has been underestimated in pulpal healing, and in the past, it has been considered only as an undesirable effect. Associated with moderate inflammation, necrosis includes pyroptosis, apoptosis, and nemosis. There are now evidences that inflammation is a prerequisite fo...

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Main Authors: Michel Goldberg, Akram Njeh, Emel Uzunoglu
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Mediators of Inflammation
Online Access:http://dx.doi.org/10.1155/2015/347649
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author Michel Goldberg
Akram Njeh
Emel Uzunoglu
author_facet Michel Goldberg
Akram Njeh
Emel Uzunoglu
author_sort Michel Goldberg
collection DOAJ
description The importance of inflammation has been underestimated in pulpal healing, and in the past, it has been considered only as an undesirable effect. Associated with moderate inflammation, necrosis includes pyroptosis, apoptosis, and nemosis. There are now evidences that inflammation is a prerequisite for pulp healing, with series of events ahead of regeneration. Immunocompetent cells are recruited in the apical part. They slide along the root and migrate toward the crown. Due to the high alkalinity of the capping agent, pulp cells display mild inflammation, proliferate, and increase in number and size and initiate mineralization. Pulp fibroblasts become odontoblast-like cells producing type I collagen, alkaline phosphatase, and SPARC/osteonectin. Molecules of the SIBLING family, matrix metalloproteinases, and vascular and nerve mediators are also implicated in the formation of a reparative dentinal bridge, osteo/orthodentin closing the pulp exposure. Beneath a calciotraumatic line, a thin layer identified as reactionary dentin underlines the periphery of the pulp chamber. Inflammatory and/or noninflammatory processes contribute to produce a reparative dentinal bridge closing the pulp exposure, with minute canaliculi and large tunnel defects. Depending on the form and severity of the inflammatory and noninflammatory processes, and according to the capping agent, pulp reactions are induced specifically.
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spelling doaj-art-c227e26ec68b4b39bd3bb6cbd7a080102025-02-03T05:46:25ZengWileyMediators of Inflammation0962-93511466-18612015-01-01201510.1155/2015/347649347649Is Pulp Inflammation a Prerequisite for Pulp Healing and Regeneration?Michel Goldberg0Akram Njeh1Emel Uzunoglu2INSERM UMR-S 1124 & Université Paris Descartes, Sorbonne, Paris Cité, 45 rue des Saints Pères, 75270 Paris Cedex 06, FranceINSERM UMR-S 1124 & Université Paris Descartes, Sorbonne, Paris Cité, 45 rue des Saints Pères, 75270 Paris Cedex 06, FranceINSERM UMR-S 1124 & Université Paris Descartes, Sorbonne, Paris Cité, 45 rue des Saints Pères, 75270 Paris Cedex 06, FranceThe importance of inflammation has been underestimated in pulpal healing, and in the past, it has been considered only as an undesirable effect. Associated with moderate inflammation, necrosis includes pyroptosis, apoptosis, and nemosis. There are now evidences that inflammation is a prerequisite for pulp healing, with series of events ahead of regeneration. Immunocompetent cells are recruited in the apical part. They slide along the root and migrate toward the crown. Due to the high alkalinity of the capping agent, pulp cells display mild inflammation, proliferate, and increase in number and size and initiate mineralization. Pulp fibroblasts become odontoblast-like cells producing type I collagen, alkaline phosphatase, and SPARC/osteonectin. Molecules of the SIBLING family, matrix metalloproteinases, and vascular and nerve mediators are also implicated in the formation of a reparative dentinal bridge, osteo/orthodentin closing the pulp exposure. Beneath a calciotraumatic line, a thin layer identified as reactionary dentin underlines the periphery of the pulp chamber. Inflammatory and/or noninflammatory processes contribute to produce a reparative dentinal bridge closing the pulp exposure, with minute canaliculi and large tunnel defects. Depending on the form and severity of the inflammatory and noninflammatory processes, and according to the capping agent, pulp reactions are induced specifically.http://dx.doi.org/10.1155/2015/347649
spellingShingle Michel Goldberg
Akram Njeh
Emel Uzunoglu
Is Pulp Inflammation a Prerequisite for Pulp Healing and Regeneration?
Mediators of Inflammation
title Is Pulp Inflammation a Prerequisite for Pulp Healing and Regeneration?
title_full Is Pulp Inflammation a Prerequisite for Pulp Healing and Regeneration?
title_fullStr Is Pulp Inflammation a Prerequisite for Pulp Healing and Regeneration?
title_full_unstemmed Is Pulp Inflammation a Prerequisite for Pulp Healing and Regeneration?
title_short Is Pulp Inflammation a Prerequisite for Pulp Healing and Regeneration?
title_sort is pulp inflammation a prerequisite for pulp healing and regeneration
url http://dx.doi.org/10.1155/2015/347649
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AT emeluzunoglu ispulpinflammationaprerequisiteforpulphealingandregeneration