Priming Effects of Triethylene Glycol and Triethylene Glycol Monomethacrylate on Dentin Bonding

Kusunoki, Mizuho; Itoh, Kazuo; Utsumi, Yutaka; Hisamitsu, Hisashi

doi:10.4012/dmj.26.474

Cited by 4 publications

(5 citation statements)

References 21 publications

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“…This was probably because water movement was prevented by triethylene glycol (TEG) which has a similar molecular weight as GM 13) . They also reported that TEG prevented infiltration of the bonding monomers into the branches of the dentinal tubules.…”

Section: Discussionmentioning

confidence: 99%

Diffusion of GM primer and dentin adhesive into EDTA-conditioned dentin

et al. 2010

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The aim of this study was to investigate the diffusion of red-stained experimental GM primer and blue-stained dentin bonding agent into EDTA-conditioned dentin and the effect of GM priming on contraction gap formation. After GM priming at 0, 35, 70, or 100 vol%, marginal adaptation was evaluated by measuring the wall-to-wall contraction gap width of a light-activated resin composite (Palfique Estelite, Tokuyama Dental, Japan) mediated with a commercial dentin bonding agent (Clearfil Photo Bond, Kuraray Medical, Japan). Contraction gap formation was completely prevented when treated with 35 vol% GM primer. Moreover, after treatment with 35 vol% GM, the red and blue dyes of stained GM primer and dentin bonding agent diffused up to a depth of 40 µm into the dentin surface. The diffusion of primer and bonding agent into EDTA-conditioned dentin was essential for bonding efficacy although SEM observation revealed an absence of hybrid layer formation.

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Section: Discussionmentioning

confidence: 99%

Diffusion of GM primer and dentin adhesive into EDTA-conditioned dentin

et al. 2010

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“…In addition, we developed experimental dentin primers which completely prevented contraction gap formation of the resin composite. These newly developed dentin primers had the same chemical structure, etherified methacrylate with polyvalent alcohol, that may have an advantage of forming hydro-gel 15,16,19,20) . It was thought that dentin primer altered the physical characteristics of the dentin surface and thus improved dentin bonding.…”

Section: Discussionmentioning

confidence: 99%

“…It has been recognized that polyethylene glycol methacrylate (PEG) possibly reduced water contamination 14) . Based on this mechanism, we developed an experimental dentin primer composed of aqueous solution of glycecryl monomethacrylate (GM) 15) and tri-ethylene glycol monomethacrylate (TEGMA) 16) , which completely prevented contraction gap formation of light-activated resin composite in a dentin cavity. Thus, it was suggested that the GM primer altered the physical and chemical conditions of the substrate dentin surface, giving it the appearance of an acid-etched enamel surface.…”

Section: Introductionmentioning

confidence: 99%

Water evaporation from substrate tooth surface during dentin treatments

et al. 2011

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The purpose of this study was to evaluate changes in the quantity of water evaporation from tooth surfaces. The amount of water evaporation was measured using Multi probe adapter MPA5 and Tewameter TM300 (Courage+Khazaka Electric GmbH, Köln, Germany) after acid etching and GM priming of enamel; and after EDTA conditioning and GM priming of dentin. The results indicated that the amount of water evaporation from the enamel surface was significantly less than that from the dentin. Acid etching did not affect the water evaporation from enamel, though GM priming significantly decreased the evaporation (83.48±15.14% of that before priming). The evaporation from dentin was significantly increased by EDTA conditioning (131.38±42.08% of that before conditioning) and significantly reduced by GM priming (80.26±7.43% of that before priming). It was concluded that dentin priming reduced water evaporation from the dentin surface.

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“…On contraction gap formation, both triethylene glycol (TEG) and triethylene glycol monomethacrylate (TEGMA) have been shown to be highly effective dentin primers because they completely prevented contraction gap formation by virtue of their "pegylation" effect 9) . Likewise, contraction gap formation was completely prevented with GM priming -a result applicable for both sclerotic and sound dentin.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, we reported that complete marginal integrity was achieved by dentin priming with an aqueous solution of erythritol monomethacrylate, xylitol monomethacrylate, ethylene glycol, 1,6-hexanediol, triethylene glycol, and triethylene glycol monomethacrylate [5][6][7][8][9] . In several studies, the dentin priming effect was investigated by expanding the dentin collagen network which was exposed as a result of decalcification during dentin conditioning and which collapsed as a result of air-drying [10][11][12][13] .…”

Section: Introductionmentioning

confidence: 99%

Measurement of shear bond strength to intact dentin

et al. 2010

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Previously, we reported that the integrity of a resin composite restoration deteriorated when the dentin cavity wall was decalcified by conditioning. In this study, to evaluate the bonding between dentin adhesive and non-decalcified dentin surface, we experimented with a novel method of using a high-pressure water spray device to prepare smear layer-free dentin surfaces. When the smear layer was removed, shear bond strength significantly increased regardless of the removal method employed. Further, with glyceryl monomethacrylate (GM) priming, no significant differences in bond strength were observed among these smear layer removal methods: ethylenediamine tetraacetic acid (EDTA) conditioning, phosphoric acid conditioning, and removal by water spray. It was also found that GM priming was key to achieving marginal integrity, whereas contraction gap width increased with phosphoric acid conditioning. It was thus concluded that the efficacy of a dentin adhesive should be evaluated by consistently observing the contraction gap in three-dimensional cavities rather than by mere measurement of bond strength to a flat dentin surface.

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Priming Effects of Triethylene Glycol and Triethylene Glycol Monomethacrylate on Dentin Bonding

Cited by 4 publications

References 21 publications

Diffusion of GM primer and dentin adhesive into EDTA-conditioned dentin

Diffusion of GM primer and dentin adhesive into EDTA-conditioned dentin

Water evaporation from substrate tooth surface during dentin treatments

Measurement of shear bond strength to intact dentin

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