Temporary restorative resins using non-phthalate ester plasticizers

Tanaka, Nobuyuki; Nomura, Yuji; Nishikiori, Ryo; Shibata, Satoki; Shirai, Kenichi; Fujitani, Morioki

doi:10.1016/j.jdent.2004.12.004

Cited by 7 publications

(5 citation statements)

References 20 publications

(18 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As the Sr5-HA filler loading increases to 20 wt %, the aggregate size growth and mechanical deterioration level off. Linoleic acid acts as a plasticizer 19 by increasing the free volume between the polymer chains and the Sr5-HA filler, allowing more chain movement. 20 Addition of linoleic acid could reduce the modulus by two mechanisms.…”

Section: 12mentioning

confidence: 99%

In Vitro characterization of low modulus linoleic acid coated strontium‐substituted hydroxyapatite containing PMMA bone cement

et al. 2010

View full text Add to dashboard Cite

Poly (methyl methacrylate) (PMMA) bone cement is widely used in vertebral body augmentation procedures such as vertebroplasty and balloon kyphoplasty. Filling high modulus PMMA increases the modulus of filled verterbra, increasing the risk of fracture in the adjacent vertebra. On the other hand, in porous PMMA bone cements, wear particle generation and deterioration of mechanical performance are the major drawbacks. This study adopts a new approach by utilizing linoleic acid coated strontium substituted hydroxyapatite nanoparticle (Sr-5 HA) and linoleic acid as plasticizer reducing bone cement's modulus with minimal impact on its strength. We determined the compressive strength (UCS) and modulus (Ec), hydrophobicity, injectability, in vitro bioactivity and biocompatibility of this bone cement at different filler and linoleic acid loading. At 20 wt % Sr5-HA incorporation, UCS and Ec were reduced from 63 ± 2 MPa, 2142 ± 129 MPa to 58 ± 2 MPa, 1785 ± 64 MPa, respectively. UCS and Ec were further reduced to 49 ± 2 MPa and 774 ± 70 MPa respectively when 15 v/v of linoleic acid was incorporated. After 7 days of incubation, pre-osteoblast cells (MC3T3-E1) attached on 20 wt % Sr5-HA and 20 wt % Sr5-HA with 15 v/v of linoleic acid group were higher (3.73 ± 0.01 x 10⁴, 2.27 ± 0.02 x 10⁴) than their PMMA counterpart (1.83 ± 0.04 x 10⁴). Incorporation of Sr5-HA with linoleic acid in monomer phase is more effective in reducing the bone cement's stiffness than Sr5-HA alone. Combination of low stiffness and high mechanical strength gives the novel bone cement the potential for use in vertebroplasty cement applications.

show abstract

Section: 12mentioning

confidence: 99%

In Vitro characterization of low modulus linoleic acid coated strontium‐substituted hydroxyapatite containing PMMA bone cement

et al. 2010

View full text Add to dashboard Cite

show abstract

“…A plasticizer is often included in bis-acryl resins to add flexibility and plasticity. However, since it is not chemically bonded to monomers 47,48) , it may affect the deterioration of the resin composite during polymerization or storage in a solution.…”

Section: Discussionmentioning

confidence: 99%

A study on the characteristics of resin composites for provisional restorations

et al. 2022

View full text Add to dashboard Cite

“…As the resin-based temporary filling material, DuraSeal has spread at many dental general practitioners. Di-n-butyl phthalate (DBP) included in DuraSeal liquid was one of the most commonly used plasticizers 5,6) , which were considered relatively nontoxic 21) . On the other hand, there was a report that the highest incidence of malformed fetuses occurred after administration with DBP on 13-15 days in rats 22) .…”

Section: Discussionmentioning

confidence: 99%

“…Experimental surfaces, approximately 5×4 mm in size, were prepared by cutting 1 mm each from the buccal and lingual root surfaces with the wire sectioning machine and polished with 2000-grit waterproof abrasive paper (FUJI STAR, Sankyo Rikagaku, Saitama, Japan) to obtain flat surfaces. 5) , and Tanaka et al 6) .…”

Section: Preparation Of Dentin Specimensmentioning

confidence: 94%

See 1 more Smart Citation

Effects of resin-based temporary filling materials against dentin demineralization

et al. 2016

View full text Add to dashboard Cite

This study investigated the in vitro anti-demineralization effects of resin-based temporary filling materials containing surface prereacted glass-ionomer (S-PRG) filler on dentin. Bovine root dentin specimens with a 3×3 mm experimental surface were divided into four treatment groups: DuraSeal (DU) as a control, S-PRG filler-free temporary material (S0), material containing 10% (S10) and 20% (S20) S-PRG filler. Each material was applied to 3×2 mm of the experimental surface, and the specimens were immersed in 8% methylcellulose gel demineralization system for one week at 37˚C. Mineral profiles and integrated mineral loss (IML) of lesions induced on the surface (3×1 mm) adjacent to the materials were computed by transversal microradiography. S10 and S20 yielded thick surface layers and shallow lesion bodies, with significantly lower IML than DU and S0 (p<0.05, Tukey's test). These findings indicate that temporary filling resin-based materials containing over 10% of S-PRG filler content have anti-demineralization effects on adjacent dentin.

show abstract

Temporary restorative resins using non-phthalate ester plasticizers

Cited by 7 publications

References 20 publications

In Vitro characterization of low modulus linoleic acid coated strontium‐substituted hydroxyapatite containing PMMA bone cement

In Vitro characterization of low modulus linoleic acid coated strontium‐substituted hydroxyapatite containing PMMA bone cement

A study on the characteristics of resin composites for provisional restorations

Effects of resin-based temporary filling materials against dentin demineralization

Contact Info

Product

Resources

About