Calcium hydroxide and niobium pentoxide treatment effects before MTA placement.
calcium hydroxide
microhardness
mineral trioxide aggregate
niobium pentoxide
perforation
root canal pretreatment
Journal
Australian endodontic journal : the journal of the Australian Society of Endodontology Inc
ISSN: 1747-4477
Titre abrégé: Aust Endod J
Pays: Australia
ID NLM: 100888004
Informations de publication
Date de publication:
Apr 2023
Apr 2023
Historique:
revised:
19
12
2021
received:
13
04
2021
accepted:
02
02
2022
medline:
14
4
2023
pubmed:
2
3
2022
entrez:
1
3
2022
Statut:
ppublish
Résumé
The aim of this study was to evaluate the effect of calcium hydroxide (CH) and niobium pentoxide (NP) pretreatment on pH, dentin microhardness and sealing of Mineral Trioxide Aggregate (MTA; Angelus). The pH of CH, NP and CH-NP (3:1) was evaluated in neutral and acidic simulated tissue fluid over 28 days. The Vickers microhardness was measured in forty 4 mm coronal root slices filled with pretreatment materials stored in medium for 1, 7, 28 days. Forty 10 mm roots were packed with pretreatment materials, irrigated after 24 h, then a 3 mm MTA plug was placed. Sealing ability was evaluated after 7 days using fluid filtration method. Statistics was performed using ANOVA and post hoc Tukey HSD tests. Addition of NP to CH maintained the alkalinity of CH, increased the microhardness of root dentin and reduced the microleakage. CH-NP can be effectively used as a pretreatment medicament in root canals requiring placement of MTA under acidic conditions.
Substances chimiques
Calcium Hydroxide
PF5DZW74VN
niobium pentoxide
K9343U17IN
Root Canal Filling Materials
0
Calcium Compounds
0
Oxides
0
Drug Combinations
0
Silicates
0
Types de publication
Journal Article
Langues
eng
Pagination
48-55Informations de copyright
© 2022 Australian Society of Endodontology Inc.
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