Improvement of the setting properties of mineral trioxide aggregate cements using cellulose nanofibrils.
Dent Mater J
; 43(1): 106-111, 2024 Jan 30.
Article
in En
| MEDLINE
| ID: mdl-38171742
ABSTRACT
Cellulose nanofibrils (CNFs) exhibit excellent mechanical properties and are used to reinforce various composites. The effects of incorporating CNFs into commercial mineral trioxide aggregate (MTA) cements (NEX MTA (NEX) and ProRoot® MTA (PR)) on the underwater setting properties, compressive strength, and flowability were estimated in this study. NEX mixed without CNFs disintegrated after water immersion. NEX mixed with CNF-suspended solutions showed good setting properties under water immersion and a similar compressive strength, which was kept in air (100% relative humidity). PR did not degrade after water immersion, regardless of the presence of CNFs, and no significant difference in the compressive strength caused by CNFs incorporation was detected. The relative flowability of the NEX mixture decreased with increasing CNFs content up to 1.0 w/v%. The application of CNF-incorporated MTA in various dental cases is promising because CNFs prevent the water-immersion-dependent collapse of some MTA cements immediately after mixing.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Root Canal Filling Materials
/
Cellulose
Language:
En
Journal:
Dent Mater J
Year:
2024
Document type:
Article
Country of publication:
Japan