Clearfil se bond 2

Manufactured by Kuraray

Sourced in Japan

Clearfil SE Bond 2 is a light-cured, one-step self-etch dental adhesive system. It is designed for the bonding of composite restorations to tooth structures.

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Lab products found in correlation

Scotchbond universal, by 3M (2 mentions) Clearfil ap x, by Kuraray (2 mentions) Tetric n flow, by Ivoclar Vivadent (1 mentions) Tetric n ceram, by Ivoclar Vivadent (1 mentions) Prime bond active, by Dentsply (1 mentions) Clearfil majesty es flow, by Kuraray (1 mentions) Enamel conditioner, by Shofu (1 mentions) K etchant syringe, by Kuraray (1 mentions) Deepcure s, by 3M (1 mentions) Em uc6, by Leica (1 mentions) Jed 2300t, by JEOL (1 mentions) Jem f200, by JEOL (1 mentions) Accutom 50, by Struers (1 mentions) Clearfil protect liner f, by Kuraray (1 mentions) C se2 primer, by Kuraray (1 mentions)

Spelling variants of this product

Clearfil SE Bond (38 citations)

12 protocols using clearfil se bond 2

MgO Nanoparticles Enhance Composite Restoration

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The following two composite materials were evaluated: Tetric N-Flow and Tetric N-Ceram (Ivoclar Vivadent). Magnesium oxide nanoparticles wires and spheres were synthesized and coated with zein polymer as described earlier (Table 1) [34 ].
Table 1

Manufacturer and composition of materials used in this study

Material (Manufacturer)	Composition
Tetric N-Ceram, Ivoclar Vivadent AG, Schaan, Liechtenstei	Dimethacrylates (19–20 wt. %), Fillers contain barium glass, ytterbium trifluoride, mixed oxide and copolymers (80–81 wt. %)
Tetric N-Flow, Ivoclar Vivadent AG, Schaan, Liechtenstein	UDMA, bis-GMA, TEGDMA
zMgO Nanoparticles (Lab prepared)	MgO Nanoparticles (Nanowires and Nanospheres) coated with zein nanopolymer

In this study, a conventional flowable composite (Tetric-N flow, Ivoclar/Vivadent, Liechtenstein), two-step self-etch adhesive (Clearfil SE bond 2, Kuraray Noritake Dental, Japan) and MgO nanowires (particle size 40nm diameter and 100nm length) synthesized by microwave in the two different concentrations were used [30 (link)]. The MgO nanofillers were weighed using a balance accurate to 0.0001g (BEL Engineering, Monza, Italy) and were added to the flowable composite in the ratio of 0.3% and 0.5% by weight.

Naguib G., Mously H., Magdy W., Binmahfooz A., Qutub O., Hajjaj M, & Hamed M.T. (2023). Color behavior of composite resin enhanced with different shapes of new antimicrobial polymer coated nanoparticles. BMC Oral Health, 23, 771.

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Experimental Two-Step Universal Adhesive Evaluation

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2.1. Experimental two-step UA and commercial reference adhesives. The experimental two-step UA, further being referred to as 'Exp_2UA', combines an experimental primer based on technology of the commercial UA G-Premio Bond ('G-PrBp', GC), used as primer without being separately light-cured, with an experimental particle-filled adhesive resin synthesized by GC under the code name 'BZF-21' (Tokyo, Japan). The basic composition is detailed in Table S1. Noteworthy is that both the primer and adhesive resin do not contain the highly hydrophilic monomer 2-hydroxyethyl methacrylate (HEMA), while the adhesive resin contains zinc-calcium-fluoride bioglass and fumed silica filler.
Representing the adhesive generation of UAs, the commercial products G-Premio Bond ('G-PrB', GC), Prime&Bond Active ('P&Ba'; Dentsply Sirona, Konstanz, Germany) and Scotchbond Universal ('SBU'; 3M Oral Care, Seefeld, Germany), and the gold-standard two-step self-etch adhesive Clearfil SE Bond 2 ('CSE2'; Kuraray Noritake) served as reference (control) adhesives.

Yao C., Ahmed M.H., Li X., Nedeljkovic I., Vandooren J., Mercelis B., Zhang F., Van Landuyt K.L., Huang C, & Van Meerbeek B. (2020). Zinc-Calcium-Fluoride Bioglass-Based Innovative Multifunctional Dental Adhesive with Thick Adhesive Resin Film Thickness. ACS applied materials & interfaces, 12(27).

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Experimental Dental Adhesive Composition

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A mix of Bis-GMA, UDMA, TEGDMA, HEMA, CQ, and EDAB was used as an
experimental adhesive with the tested primers.
Clearfil SE Bond 2 (Kuraray), a 2-step self-etching system, was
used as a commercial reference (CFSE). The composition of the
primers and adhesive systems is presented in the Table and
structures shown in Figure 1A.

Alkattan R., Koller G., Banerji S, & Deb S. (2021). Bis[2-(Methacryloyloxy) Ethyl] Phosphate as a Primer for Enamel and Dentine. Journal of Dental Research, 100(10), 1081-1089.

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Evaluation of Universal Adhesive-Derived Primer

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Table 1 shows the materials used in this study. The twostep adhesive system using a universal adhesive-derived primer, G2-Bond Universal (GU; GC, Tokyo, Japan), was used. Clearfil SE Bond 2 (CS; Kuraray Noritake Dental, Tokyo, Japan) and OptiBond XTR (OX; Kerr, Orange, CA, USA) were the two traditional two-step SE adhesive systems used for comparison. Clearfil AP-X (Kuraray Noritake Dental) was used for bonding to the tooth substrate after bonding procedures. A light-emitting diode curing unit (Valo; Ultradent Products, South Jordan, UT, USA) was used with a 10 mm internal tip diameter, and a light irradiance of over 1,000 mW/cm 2 (standard mode) was checked during the experiment.

Takamizawa T., Hirokane E., Sai K., Ishii R., Aoki R., Barkmeier W.W., Latta M.A, & Miyazaki M. (2023). Bond durability of a two-step adhesive with a universal-adhesive-derived primer in different etching modes under different degradation conditions. Dental materials journal, 42(1).

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Fluoride Solutions for Dental Adhesion

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The solutions used in this experiment were prepared by mixing deionized water with KF and NaF powder (Wako pure chemical industrial, Osaka, Japan) to produce different concentrations, as shown in Table 1. The materials used are, water (serving as control), a two-step self-etching adhesive system (Clearfil SE Bond 2, Kuraray Noritake Dental, Tokyo, Japan), and a resin composite (Clearfil AP-X, Shade A2, Kuraray Noritake Dental) (Table 2).

Al-Qahtani A., Inoue G., Abdou A., Nikaido T, & Tagami J. (2021). Effects of potassium and sodium fluoride in different concentrations on micro-shear bond strength and inhibition of demineralization. Dental materials journal, 40(2).

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Resin Coating for Cavity Treatment

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The resin-coating materials used in this study are presented in Table 1. The materials were applied to the entire cavity surface, including the enamel margins. Any excess material was removed prior to light-curing with a light-emitting diode (LED) light-curing unit (VALO, Ultradent, South Jordan, UT, USA) used in "standard mode" (1,000 mW/cm 2 ). The specimens were randomly distributed into 3 groups according to the surface of the cavity treatment as follows.
Uncoated group: The surface of the cavity was left uncoated as a control.
1-step group: A one-bottle adhesive system, G-Premio Bond (G-Premio) (GC, Tokyo, Japan), was used as a resin-coating material. G-Premio was applied to the surface of the cavity, immediately subjected to strong air-drying, and then light-cured for 10 s.
2-step+Flow group: A combination of a two-step self-etch adhesive, Clearfil SE Bond 2 (SE2) (Kuraray Noritake Dental, Tokyo, Japan) and a flowable resin composite, Clearfil Majesty ES Flow (ES flow) (Kuraray Noritake Dental), was used as resin-coating materials. The primer of SE2 was applied for 20 s and air-dried. Then, the bonding agent of SE2 was applied, gently airdried, and light-cured for 10 s. Afterward, ES flow was thinly placed on the cavity with a disposable applicator brush and light-cured for 20 s.

Rozan S., Takahashi R., Nikaido T., Tichy A, & Tagami J. (2020). CAD/CAM-fabricated inlay restorations: Can the resin-coating technique improve bond strength and internal adaptation?. Dental materials journal, 39(6).

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Evaluation of Etchant Effects on Enamel Bonding

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The 2-SEA used in this study was Clearfil SE Bond 2 (SE2; Kuraray Noritake Dental, Tokyo, Japan). Two types of tooth etchants, Enamel Conditioner (EC; Shofu) and K-etchant syringe (KE; Kuraray Noritake Dental), were tested. The compositions of the etchants and adhesives are listed in Table 1. A previous study has reported the pH values of EC and KE as 0.63 and 0.21, respectively 12) . Caries-free human premolars and third molars were collected after informed consent was obtained according to a protocol approved by the Institutional Review Board of Tokyo Medical and Dental University (D2013-022). The teeth were stored at 4°C in a 0.1% thymol solution and used within 1 month of extraction. The buccal and lingual surfaces of the teeth were the prepared aspect surfaces. For the bur-cut specimens, enamel surfaces (0.5 mm depth) were prepared using a medium-grit (76 μm) diamond bur (F102R, Shofu) under copious air-water spray. For the uncut specimens, uncut enamel surfaces were cleansed without any pumice paste for 15 s using a dental brush (Merssage brush, Shofu) rotating at 500 rpm. mounted on a slow-speed handpiece. The cleaned enamel surfaces were then rinsed with deionized water for 5 s.

Sato A., Sato T., Ikeda M., Takagaki T., Nikaido T., Tagami J, & Shimada Y. (2023). Influence of different tooth etchants on bur-cut and uncut enamel. Dental materials journal, 42(3).

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Zirconium Oxide Nanoparticle-Reinforced Composite

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Thirty noncarious human molar teeth were used in this study (Figure 1). Teeth were acquired under the specifications certified by King Abdulaziz University ethical panel and in congruence with the guidelines of the Helsinki Declaration. The teeth were stored in saline mixed with 0.1% thymol at 4 °C. Class V cavities (3 × 1.5 mm) were set on both buccal and lingual teeth surfaces using a wheel diamond bur. The self-etch adhesive (Clearfil SE bond 2, Kuraray Noritake Dental) was used to bond all the cavities according to the manufacturer's recommendation. The bonded specimens were split into 3 sets (n = 10), Each set had 10 teeth and each tooth comprised 2 class V cavities (1 cavity per surface). In group 1 (control), cavities were restored with conventional flowable composite. In group 2, 0.3% by weight zMgO NPs was added to flowable composite and used to restore the cavities, whilst 0.5% by weight zMgO NPs was used in group 3. The corresponding weight for each concentration of zMgO NPs was measured by an electronic scale to 0.0001 g precision (Mettler Toledo, Fischer Scientific), added to N-Flow composite and mixed by hand in a dark chamber. All restorations were filled and cured for 20 seconds with LED light cure (∼1200 mW/cm²). Subsequently, all groups were stored for 24 hours at 37 °C in distilled water.Fig. 1

Schematic representation of the study design.

Fig 1

Naguib G.H., Bakhsh T.A., Turkistani A.A., Mously H.A., Fattouh M, & Hamed M.T. (2022). Noninvasive Adaptation Appraisal of Antimicrobial Nano-Filled Composite. International Dental Journal, 73(4), 533-541.

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Flowable Composite with MgO Nanowires

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In this study, a flowable composite (Tetric-N flow, Ivoclar/Vivadent), 2-step self-etch adhesive (Clearfil SE bond 2, Kuraray Noritake Dental), and MgO nanowires (40 × 100 nm)²⁹ (link) in 2 different concentrations were used.

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Dental Adhesive Material Evaluation

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The adhesive materials and associated techniques used to adapt to dentine are described in Table 1. The adhesives investigated were an ER [37% phosphoric acid in a silica base applied prior to adapting Scotchbond Universal (3M ESPE)], an SE (Clearfil SE Bond 2; Kuraray), and GI (EQUIA‐Forte Fil; GC Australasia). A LED curing light, the Elipar DeepCure‐S (3M), was used to set the resin‐based adhesives and composites, with a light irradiance power of 1470 mW/cm² (±10%) measured using a calibrated LED radiometer.

Weerakoon A.T., Cooper C., Sokolowski K.A., Meyers I.A., Thomson D., Ford P.J., Sexton C, & Symons A.L. (2022). Effect of dentine site on resin and cement adaptation tested using X‐ray and electron microscopy to evaluate bond durability and adhesive interfaces. European Journal of Oral Sciences, 130(5), e12890.

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