Response characteristics of the cat somatosensory cortex following the mechanical stimulation to endodontically treated teeth with overextension.
Cortical response
Hyperesthesia
Intrinsic signal optical imaging
Overextension
Tooth
Journal
Neuroscience letters
ISSN: 1872-7972
Titre abrégé: Neurosci Lett
Pays: Ireland
ID NLM: 7600130
Informations de publication
Date de publication:
18 01 2019
18 01 2019
Historique:
received:
25
06
2018
revised:
30
09
2018
accepted:
02
10
2018
pubmed:
9
10
2018
medline:
12
3
2019
entrez:
9
10
2018
Statut:
ppublish
Résumé
The overextension of filling materials may take place accidentally during an endodontic root canal treatment. Previous studies to understand the correlation between overfilling and paresthesia of teeth were inconsistent. In this study, an intrinsic signal optical imaging technique was employed as the objective tool to compare the response characteristics of the cat somatosensory cortex following mechanical stimulation applied to endodontically treated teeth with overextension (ETTWO) and natural teeth. Based on the evoked cortical response, the signal strength of the ETTWO was found to be significantly higher than that of the natural teeth. However, the tactile threshold of the ETTWO was significantly lower than that of the natural teeth. It was concluded that the tactile function of ETTWO is more sensitive than that of natural teeth, and that the overextension of filling materials can cause hyperesthesia of teeth after root canal treatment.
Identifiants
pubmed: 30296506
pii: S0304-3940(18)30672-4
doi: 10.1016/j.neulet.2018.10.006
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
132-137Informations de copyright
Copyright © 2018. Published by Elsevier B.V.