Tensile Bond Strength of 4-META/MMA-TBB Resin to Ground Bovine Enamel Using a Self-etching Primer

Hayakawa, Tohru; Fukushima, Tadao; Nemoto, Kimiya

doi:10.4012/dmj.23.271

Cited by 14 publications

(7 citation statements)

References 21 publications

(3 reference statements)

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“…It was revealed that due to poor ionization of acidic moieties in hydrophobic adhesives, these monomers failed to perform the essential bonding function with dentin 28) . Against this background, recently developed self-etching primers are attractive in that they create micromechanical retention in the hard dental tissues without the use of a separate acid-etching step [10][11][12][13]19,20,[34][35][36][37][38][39][40][41] . This capability enables them to bond orthodontic brackets 39,40) or stainless steel rods 41) with adhesive resins to unetched enamel.…”

Section: Discussionmentioning

confidence: 99%

“…Against this background, recently developed self-etching primers are attractive in that they create micromechanical retention in the hard dental tissues without the use of a separate acid-etching step [10][11][12][13]19,20,[34][35][36][37][38][39][40][41] . This capability enables them to bond orthodontic brackets 39,40) or stainless steel rods 41) with adhesive resins to unetched enamel. Further, it was found that a self-etching primer comprising 10-MDP provided efficient bonding of composite-type resin cement to titanium (Ti) 42) , while an adhesive primer containing 6-MHPA was found to exhibit strong adhesion to zirconia-and alumina-based all-ceramic prostheses 43) .…”

Section: Discussionmentioning

confidence: 99%

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Multi-purpose Bonding Performance of Newly Synthesized Phosphonic Acid Monomers

et al. 2007

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Multi-purpose bonding performance of three kinds of newly synthesized phosphonic acid monomers was investigated. Methacryloxyalkyl or acryloxyalkyl phosphonoacetates of 6-MHPA, 6-AHPA, 10-MDPA were synthesized in 42.8-51.9％ yields with a light yellow viscous liquid, and identified as new compounds by 1 H NMR, IR, and elemental analysis. Conventional adhesive monomers, namely VBPA, 4-META, and 4-AETA, and CEBA-p-TSMo-t-BPMA initiator were also used. Seven experimental composite-type adhesive resins comprising these six kinds of adhesive monomers and None (control) with the initiator were prepared. Tensile bond strengths of adhesive resins to unetched ground enamel and dentin, ground porcelain, and sandblasted Ni-Cr alloy were measured at a crosshead speed of 1.0 mm/min. Results showed that except with VBPA, there were no significant differences among 6-MHPA, 6-AHPA, 10-MDPA, 4-AETA, and 4-META in bonding performance to the adherends (p<0.01). It was found that the new phosphonic acid monomers provided good multipurpose adhesion to all adherends tested.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Multi-purpose Bonding Performance of Newly Synthesized Phosphonic Acid Monomers

et al. 2007

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“…There are some studies reporting the modification of the self‐etching primer with iron compounds 20–22. The ferric ion also has an important role in improving dentin bonding of 4‐META/MMA‐TBB resin 23–25.…”

Section: Introductionmentioning

confidence: 99%

Effects of a ferric chloride primer on collagen‐depleted dentin bonding between tri‐n‐butylborane initiated self‐curing resin and dentin

et al. 2007

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This study was designed to evaluate the micro-tensile bond strength between a carboxylic resin and dentin, when the dentin surface was modified with an experimental dentin primer. The three primers tested were ED primer II (ED), 0.3% ferric chloride aqueous solution (FE), and ED containing 0.3% ferric chloride (ED/FE). Three commercial dentin conditioners [40% phosphoric acid, 10% NaOCl, and 10% citric acid with 3% ferric chloride (10-3)] were also used. The coronal surfaces of extracted human molars were ground flat to dentin. The dentin surfaces were treated with phosphoric acid, NaOCl, or with one of the primers. The 10-3 was used without phosphoric acid or NaOCl as a control. A composite material rod was bonded to the dentin surface with 4-META/MMA-TBB resin. After 24-h immersion in 37 degrees C distilled water, 0.9 mm x 0.9 mm composite-dentin beams cut from the bonded specimens were stressed to failure in tension at 0.6 mm/min. The bond strengths were also evaluated after 5000 thermocycles. The bond strength of the group ED/FE was significantly higher than those of the 10-3, ED, and FE. After 5000 thermocycling, 10-3, ED and FE showed significant decrease in bond strength, although no significant decrease was seen for ED/FE. It was concluded that dentin surface treatment with phosphoric acid, NaOCl, and the ED/FE primer improved the bonding (p < 0.05) between 4-META/MMA-TBB resin and dentin, with or without thermocycling, while the bond strengths in the control group fell 34% following 5000 thermocycles.

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“…4-MET thanks its wide indication area to its good adhesive durability to dentin 9,10) and cementum 11) , and to its high biocompatibility 12) . 4-MET is the active ingredient of many currently available self-etch adhesives [13][14][15][16] . In contrast to etchand-rinse adhesives that involve phosphoric-acid etching, self-etch adhesives containing 4 -MET only partially demineralize dentin, leaving HAp partially attached to collagen within a submicron hybrid layer 14,16) .…”

Section: Introductionmentioning

confidence: 99%

Analysis of Chemical Interaction of 4-MET with Hydroxyapatite Using XPS

et al. 2006

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Each dental adhesive contains a specific functional monomer that determines its actual adhesive performance to tooth tissue. 4-methacryloxyethyl trimellitic acid（4-MET）is well-known as one of the functional monomers mostly available and consequently widely used in commercial adhesives. We therefore characterized the chemical interaction of 4 -MET with hydroxyapatite（HAp）using X-ray Photoelectron Spectroscopy（XPS） . XPS revealed that the peak representing -COO-of 4-MET shifted to a lower binding energy, when 4-MET was adsorbed onto HAp. Deconvolution of this shifted peak disclosed two components with a peak representing unreacted carboxyl groups and ester groups, and a peak suggesting chemical bonding of other carboxyl groups to Ca of HAp. XPS spectra of HAp treated with 4-MET also disclosed the surface to be enriched in calcium and decreased in phosphorus, indicating that phosphorus was extracted at a relatively higher rate than calcium. It can thus be concluded that true chemical bonding of 4 -MET with calcium present in HAp occurred, as it was proven using XPS.

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Tensile Bond Strength of 4-META/MMA-TBB Resin to Ground Bovine Enamel Using a Self-etching Primer

Cited by 14 publications

References 21 publications

Multi-purpose Bonding Performance of Newly Synthesized Phosphonic Acid Monomers

Multi-purpose Bonding Performance of Newly Synthesized Phosphonic Acid Monomers

Effects of a ferric chloride primer on collagen‐depleted dentin bonding between tri‐n‐butylborane initiated self‐curing resin and dentin

Analysis of Chemical Interaction of 4-MET with Hydroxyapatite Using XPS

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