Effects of Endodontic Irrigants on Material and Surface Properties of Biocompatible Thermoplastics.
biocompatible polymer
elastic modulus
hardness
irrigant activation
microindentation
passive sonic irrigation
polyamide
polyether ether ketone
root canal treatment
surface roughness
Journal
Dentistry journal
ISSN: 2304-6767
Titre abrégé: Dent J (Basel)
Pays: Switzerland
ID NLM: 101716125
Informations de publication
Date de publication:
06 Mar 2019
06 Mar 2019
Historique:
received:
30
11
2018
revised:
26
02
2019
accepted:
27
02
2019
entrez:
9
3
2019
pubmed:
9
3
2019
medline:
9
3
2019
Statut:
epublish
Résumé
Passive irrigation is an efficient method for a successful endodontic treatment. During sonic activation biocompatible polymer tips are used to activate irrigants. Compared to ultrasonic activation with metallic tips, polymer tips have the advantage of a reduced risk of fracture and minimise dentine damage. Hence, two polymers, polyether ether ketones (PEEK) and polyamide (PA6), were identified for the manufacturing of novel irrigation tips. The chemical resistance against the irrigants ethylenediaminetetraacetic acid (EDTA) 20%, chlorhexidine gluconate (CHX) 2% and sodium hypochlorite (NaOCl) 5.25% was analysed. Using microindentation, the change of hardness, elasticity, surface roughness and appearance of the polymers was determined. PA6 had a high absorption of irrigant compared to PEEK. PEEK was resistant to the investigated irrigants and showed no significant alteration of surface and mechanical properties, whereas PA6 slightly increased its hardness, elastic modulus and surface roughness during long-term exposure at 37 °C. However, PA6 tips seem to be a promising disposable product due to the material's high deformability and low manufacturing costs. Particularly with regard to structural-dynamic properties and high chemical resistance, PEEK can be considered as a material for reusable irrigation tips.
Identifiants
pubmed: 30845729
pii: dj7010026
doi: 10.3390/dj7010026
pmc: PMC6473885
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : Deutsche Forschungsgemeinschaft
ID : DA 1701/1-1; WE 5838/1-1
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