Abstract
Objectives: The aim of this study was to evaluate the feasibility of regulation of NaF release from bis-GMA/TEGDMA resin using γ- methacryloxypropyltrimethoxysilane (γ-MPTS). Methods: NaF powder was treated with γ-MPTS to form a polysiloxane layer on its surface. The morphology and the composition of the NaF powder treated with γ-MPTS were evaluated using scanning electron microscopy, infrared spectroscopy, contact angle measurement and X-ray photoelectron spectroscopy. Bis-GMA/TEGDMA resin containing 50wt% NaF powder was prepared as a model resin and immersed in distilled water at 37°C, and the amount of fluoride released from the resin was measured using a fluoride electrode. The mechanical strength in terms of diametral tensile strength before and after fluoride release was also measured, and statistically analyzed using one-way factorial ANOVA and Fisher's PLSD method. Results: NaF powder was covered with hydrophobic γ-MPTS delivered polysiloxane. A larger amount of fluoride was released at the initial stage from the resin containing NaF treated with no γ-MPTS. However, fluoride release terminated in a relatively shorter period. In contrast, we observed a smaller amount of fluoride released for a longer period from the resin containing NaF treated with γ-MPTS. Significance: We found that γ-MPTS treatment is useful for the regulation of NaF release from bis-GMA/TEGDMA resin. The mechanism of slow NaF release may be the formation of a hydrophobic polysiloxane layer on the surface of NaF powder and resulting slow water diffusion to NaF powder.
| Original language | English |
|---|---|
| Pages (from-to) | 81-87 |
| Number of pages | 7 |
| Journal | Dental Materials |
| Volume | 18 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 1 2002 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Dentistry(all)
Cite this
Regulation of NaF release from bis-GMA/TEGDMA resin using γ-methacryloxypropyltrimethoxysilane. / Nakabo, Satoshi; Torii, Yasuhiro; Itota, Toshiyuki; Ishikawa, Kunio; Suzuki, Kazuomi.
In: Dental Materials, Vol. 18, No. 1, 01.01.2002, p. 81-87.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Regulation of NaF release from bis-GMA/TEGDMA resin using γ-methacryloxypropyltrimethoxysilane
AU - Nakabo, Satoshi
AU - Torii, Yasuhiro
AU - Itota, Toshiyuki
AU - Ishikawa, Kunio
AU - Suzuki, Kazuomi
PY - 2002/1/1
Y1 - 2002/1/1
N2 - Objectives: The aim of this study was to evaluate the feasibility of regulation of NaF release from bis-GMA/TEGDMA resin using γ- methacryloxypropyltrimethoxysilane (γ-MPTS). Methods: NaF powder was treated with γ-MPTS to form a polysiloxane layer on its surface. The morphology and the composition of the NaF powder treated with γ-MPTS were evaluated using scanning electron microscopy, infrared spectroscopy, contact angle measurement and X-ray photoelectron spectroscopy. Bis-GMA/TEGDMA resin containing 50wt% NaF powder was prepared as a model resin and immersed in distilled water at 37°C, and the amount of fluoride released from the resin was measured using a fluoride electrode. The mechanical strength in terms of diametral tensile strength before and after fluoride release was also measured, and statistically analyzed using one-way factorial ANOVA and Fisher's PLSD method. Results: NaF powder was covered with hydrophobic γ-MPTS delivered polysiloxane. A larger amount of fluoride was released at the initial stage from the resin containing NaF treated with no γ-MPTS. However, fluoride release terminated in a relatively shorter period. In contrast, we observed a smaller amount of fluoride released for a longer period from the resin containing NaF treated with γ-MPTS. Significance: We found that γ-MPTS treatment is useful for the regulation of NaF release from bis-GMA/TEGDMA resin. The mechanism of slow NaF release may be the formation of a hydrophobic polysiloxane layer on the surface of NaF powder and resulting slow water diffusion to NaF powder.
AB - Objectives: The aim of this study was to evaluate the feasibility of regulation of NaF release from bis-GMA/TEGDMA resin using γ- methacryloxypropyltrimethoxysilane (γ-MPTS). Methods: NaF powder was treated with γ-MPTS to form a polysiloxane layer on its surface. The morphology and the composition of the NaF powder treated with γ-MPTS were evaluated using scanning electron microscopy, infrared spectroscopy, contact angle measurement and X-ray photoelectron spectroscopy. Bis-GMA/TEGDMA resin containing 50wt% NaF powder was prepared as a model resin and immersed in distilled water at 37°C, and the amount of fluoride released from the resin was measured using a fluoride electrode. The mechanical strength in terms of diametral tensile strength before and after fluoride release was also measured, and statistically analyzed using one-way factorial ANOVA and Fisher's PLSD method. Results: NaF powder was covered with hydrophobic γ-MPTS delivered polysiloxane. A larger amount of fluoride was released at the initial stage from the resin containing NaF treated with no γ-MPTS. However, fluoride release terminated in a relatively shorter period. In contrast, we observed a smaller amount of fluoride released for a longer period from the resin containing NaF treated with γ-MPTS. Significance: We found that γ-MPTS treatment is useful for the regulation of NaF release from bis-GMA/TEGDMA resin. The mechanism of slow NaF release may be the formation of a hydrophobic polysiloxane layer on the surface of NaF powder and resulting slow water diffusion to NaF powder.
UR - http://www.scopus.com/inward/record.url?scp=0036133904&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036133904&partnerID=8YFLogxK
U2 - 10.1016/S0109-5641(01)00024-0
DO - 10.1016/S0109-5641(01)00024-0
M3 - Article
C2 - 11740968
AN - SCOPUS:0036133904
VL - 18
SP - 81
EP - 87
JO - Dental Materials
JF - Dental Materials
SN - 0109-5641
IS - 1
ER -