Sustainable Ag hybrid bacterial cellulose nanofiber (Ag-BCN) was used as the fiber reinforcement material for tricalcium silicate (CS) to construct a functional dental restorative material with excellent mechanical performance and high antibacterial activity. The prepared CS/Ag-BCN material exhibits 44.5 % increase in fracture resistance and 38.4 % decrease in coefficient friction compared to the mechanical strength of pristine CS based material (fracture resistance: 72 N, coefficient friction: 0.73). Moreover, incorporating Ag-BCN into CS matrix provided outstanding antibacterial efficiency (>99.99 % against S. aureus and >99.99 % against E. coli). Animal model experiments confirm its excellent biocompatibility and capacity to reduce the infection. These results suggest that the CS/Ag-BCN material holds great promise for dental restoration applications.
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http://dx.doi.org/10.1016/j.ijbiomac.2025.141862 | DOI Listing |
Int J Biol Macromol
March 2025
School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei Street, Nanjing, Jiangsu Province, China. Electronic address:
Sustainable Ag hybrid bacterial cellulose nanofiber (Ag-BCN) was used as the fiber reinforcement material for tricalcium silicate (CS) to construct a functional dental restorative material with excellent mechanical performance and high antibacterial activity. The prepared CS/Ag-BCN material exhibits 44.5 % increase in fracture resistance and 38.
View Article and Find Full Text PDFPediatr Dent
November 2024
Department of Endodontics, Fluminense Federal University, all in Rio de Janeiro.
The purpose of this systematic review and meta-analysis was to assess the success of pulpotomies performed on primary teeth using mineral trioxide aggregate (MTA) and other calcium-silicate-based cements (CSC). A comprehensive search was conducted in six electronic databases. The selection of studies was guided by PICOS criteria and included only randomized clinical trials that evaluated the success of pulpotomy in primary teeth using MTA, compared with other CSC materials.
View Article and Find Full Text PDFDent Mater J
March 2025
Division of Oral Functional Science and Rehabilitation, Department of Endodontics, School of Dentistry, Asahi University.
Mineral trioxide aggregate cement is an excellent pulp-capping material; however, its base Portland cement contains highly toxic elements and is expensive. This study aimed to explore the possibility of using calcium silicate cement without Portland cement. Synthesis was attempted via firing using calcium silicate (CS), as the base material, and calcium oxide (CA).
View Article and Find Full Text PDFClin Oral Investig
February 2025
Department of Restorative Dentistry - Endodontics, Piracicaba Dental School, Universidade Estadual de Campinas, Piracicaba, SP, Brazil.
Objectives: The objective of this research was to evaluate the volumetric and surface stability in vitro, to different pH levels, of calcium silicate-based repair cements ready-to-use and powder/liquid exposed.
Materials And Methods: Sixty human teeth were retro-prepared to a depth of 3 mm and divided into two groups. The first group included powder/liquid cements Biodentine (Septodont, France) and MTA HP (Angelus, Brazil); the second group included ready-to-use cements Bio-C Repair (Angelus, Brazil) and ENDOCEM MTA (Maruchi, Republic of Korea).
Nat Commun
February 2025
Faculty of Innovation Engineering, Macau University of Science and Technology, Avenida Wai Long, Taipa, 999078, Macao SAR, China.
Silane coupling agents are widely recognized to retard early hydration when incorporated into fresh cement paste, yet the atomic-level mechanisms underlying their effects on clinker dissolution, such as adsorption of silane monomer onto reactive surface sites and modification of ion detachment pathways, remain unexplored. Here we show dissolution behavior of tricalcium silicate (CaSiO) under 3-aminopropyl triethoxysilane impact using ab initio metadynamics, with experimental validation of the retardation effects in silane-treated pastes. The shielding effect of silane induces shifts in free energy changes of stepwise calcium dissolution from negative to positive and alters the most stable Ca coordination state during dissolution, resulting in the transition of dissolution from spontaneous to non-spontaneous.
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