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Clinical Oral Investigations

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31.10.2017 | Original Article

Prevention of coronal discoloration induced by regenerative endodontic treatment in an ex vivo model

verfasst von: Noushin Shokouhinejad, Mehrfam Khoshkhounejad, Marzieh Alikhasi, Parisa Bagheri, Josette Camilleri

Erschienen in: Clinical Oral Investigations | Ausgabe 4/2018

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Abstract

Objectives

The aim of this study was to assess the effect of sealing the pulp chamber walls with a dentin-bonding agent (DBA) on prevention of discoloration induced by regenerative endodontic procedures (REPs) in an ex vivo model.

Materials and methods

Ninety-six bovine incisors were prepared and randomly divided into two groups. In one group, the pulp chamber walls were sealed with DBA before placement of triple antibiotic paste (TAP) containing minocycline inside the root canals, but in the other group, DBA was not applied. After 4 weeks, the root canals were filled with human blood and each group was then randomly divided into four subgroups (n = 12) according to the endodontic cements placed over the blood clot (ProRoot MTA, OrthoMTA, RetroMTA, or Biodentine). The color changes (∆E) were measured at different steps. The data were analyzed using t test and two-way ANOVA.

Results

The specimens in which dentinal walls of pulp chamber were sealed with DBA showed significantly less coronal discoloration at each step of regenerative treatment (p < 0.001). However, application of DBA did not completely prevent the clinically perceptible coronal color change. Sealing the blood clot with different endodontic cements did not result in significant difference in coronal discoloration (p > 0.05).

Conclusions

Sealing the pulp chamber walls before insertion of TAP decreased coronal discoloration following REP using different endodontic cements but did not prevent it.

Clinical relevance

Discoloration of teeth undergoing REPs is an unfavorable outcome. Considering the significant contribution of TAP containing minocycline to the coronal tooth discoloration even after sealing the pulp chamber walls, the revision of current guidelines in relation to the use of TAP with minocycline might need to be revised.

American Association of Endodontists (2016) AAE clinical considerations for a regenerative procedure. Revised 6-8-16. https://www.aae.org/uploadedfiles/publications_and_research/research/currentregenerativeendodonticconsiderations.pdf. Accessed 30 July 2017

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Titel: Prevention of coronal discoloration induced by regenerative endodontic treatment in an ex vivo model
verfasst von: Noushin Shokouhinejad
Mehrfam Khoshkhounejad
Marzieh Alikhasi
Parisa Bagheri
Josette Camilleri
Publikationsdatum: 31.10.2017
Verlag: Springer Berlin Heidelberg
Erschienen in: Clinical Oral Investigations / Ausgabe 4/2018
Print ISSN: 1432-6981
Elektronische ISSN: 1436-3771
DOI: https://doi.org/10.1007/s00784-017-2266-0

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Prevention of coronal discoloration induced by regenerative endodontic treatment in an ex vivo model

Abstract

Objectives

Materials and methods

Results

Conclusions

Clinical relevance

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Springer Medizin

Abstract

Objectives

Materials and methods

Results

Conclusions

Clinical relevance

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