Assessment of clasp design and flexural properties of acrylic denture base materials for use in non-metal clasp dentures

Iwata, Y.

doi:10.1016/j.jpor.2015.11.003

Cited by 13 publications

(11 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hamanaka et al also reported relatively low flexural properties of thermoplastic resins at the proportional limit (PL) point 16,17) . There have been other reports demonstrating higher flexural strength of thermoplastic resins [18][19][20] . Cumulatively, there are substantial differences or conflicts in the reported mechanical properties within the literature data and between the literature and manufacturer data 8) .…”

Section: Introductionmentioning

confidence: 92%

Evaluation of the flexural mechanical properties of various thermoplastic denture base polymers

Lee

Yang

et al. 2018

Dental Materials Journal

View full text Add to dashboard Cite

This study evaluated the flexural mechanical properties of various thermoplastic denture base polymers (six polyamides, four acrylic resins, polyester, polypropylene, and polycarbonate) by three different testing conditions; specimens were tested in water bath at 37°C (Wet/Water, by ISO 20795-1), or in ambient air (Wet/Air) after being immersed in distilled water for 50 h, or after desiccation for 7 days (Dry/Air). The mean ultimate flexural strength (UFS) and flexural modulus (FM) for most products ranged from 27 to 61 MPa and from 611 to 1,783 MPa respectively, which failed to meet the minimum requirements of the international standard, except for polycarbonate (89 and 2,245 MPa). The mean UFS and FM values were ranked Dry/Air>Wet/Air>Wet/Water (p<0.05). In conclusion, the flexural mechanical properties of denture base polymers varied with the products and were significantly affected by the testing medium (air or water) and specimen conditions (wet or dry).

show abstract

Section: Introductionmentioning

confidence: 92%

Evaluation of the flexural mechanical properties of various thermoplastic denture base polymers

Lee

Yang

et al. 2018

Dental Materials Journal

View full text Add to dashboard Cite

show abstract

“…However, extensive studies are necessary in order to understand the interactions between the CNF and the acrylic resin interface. The mechanical evaluation of denture base materials frequently involves the determination of flexural properties 28) ; numerous studies have examined the flexural properties of denture base resins 29,30) . Water molecules can penetrate a polymer structure and act as a plasticizer, leading to a reduction in the mechanical properties of the structure 31) .…”

Section: Discussionmentioning

confidence: 99%

Use of cellulose nanofibers as a denture immersing solution

et al. 2020

View full text Add to dashboard Cite

The purpose of this study was to investigate the influence of cellulose nanofibers (CNF) solution on the mechanical and biological properties of denture base resins (DBR). Two types of CNFs obtained from bamboo (BB) and needle-leaved (NB) trees were used in this study. We prepared 18 different CNF solutions based on their fibrillation (A-low, B-middle, and C-high) and concentration (0.05, 0.10, and 0.20 wt%). A heat-polymerized acrylic resin was used as DBR. The contact angles for each specimen were measured after immersion. The flexural properties of the immersed specimens, and the biological properties of the CNF solutions were examined. Specimens immersed in CNF-NB-C-0.05 wt% solution presented with the lowest contact angles. Specimens in CNF-NB-C and CNF-BB-A groups showed higher flexural modulus values. No cytotoxic or antimicrobial effects were observed for the CNF solutions. This study suggest that CNF solution may improve the surface wettability of the DBR without affecting its flexural property.

show abstract

“…The increase in curing temperature was reported to yield pore-free structures and low levels of residual monomer associated with low water absorption [11]. NMCD materials such as polyamide, polyester or polycarbonate showed better fracture- and impact-resistance than acrylic materials, but they were difficult to grind, had low color stability, and needed short span maintenance [12]. Therefore, extensive research was carried out to improve the properties of acrylic denture base materials by mixing PMMA with suitable fillers.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Graphene in Improvement of Physico-Mechanical Properties in PMMA Denture Base Resins

et al. 2019

View full text Add to dashboard Cite

The clinical performances of dental materials depend on their mechanical profiles, determining their long-term deformation and wear resistance. This paper describes a study on the mechanical properties, water absorption and morphological properties of a polymethyl methacrylate (PMMA) resin enriched with graphene-silver nanoparticles (Gr-Ag). Two different concentrations—1 and 2 wt.%—of Gr-Ag were loaded into the PMMA material. For the mechanical characterization, the compression behavior, flexural strength and tensile strength were evaluated. Optical microscopy in polarized light and scanning electron microscopy were used for filler analysis. The filler addition led to an improvement in all mechanical properties, with slight changes being derived from the filler content variation. Gr-Ag use led to an increase in the applied maximum loads. Moreover, 1 wt.% Gr-Ag determined an increase of 174% in the modulus of rupture, which indicates high flexibility.

show abstract

Assessment of clasp design and flexural properties of acrylic denture base materials for use in non-metal clasp dentures

Abstract: The results thus suggested that some of the acrylic materials used as denture base materials may also be usable for NMCDs, and that the flexural properties of the acrylic material PI resemble those of ES, ESB and ACT, meaning that similar clasp designs may also be feasible.

Cited by 13 publications

References 19 publications

Evaluation of the flexural mechanical properties of various thermoplastic denture base polymers

Evaluation of the flexural mechanical properties of various thermoplastic denture base polymers

Use of cellulose nanofibers as a denture immersing solution

The Influence of Graphene in Improvement of Physico-Mechanical Properties in PMMA Denture Base Resins

Contact Info

Product

Resources

About