Mylar strip

Manufactured by Henry Schein

Sourced in United States

The Mylar strip is a type of laboratory equipment commonly used in various scientific applications. It is a thin, flexible, and durable film made of polyethylene terephthalate (PET). The primary function of the Mylar strip is to provide a protective or insulating layer for sensitive materials or equipment.

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Lab products found in correlation

Celalux 2, by Voco dental (5 mentions) Admira fusion, by Voco dental (1 mentions) Celalux 2 high power led curing light, by Voco dental (1 mentions) Grandio seal, by Voco dental (1 mentions)

7 protocols using mylar strip

Comparative Evaluation of Dental Composites

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One microfilled composite (Gradia Direct Anterior), one nanofilled composite (Filtek Supreme XTE), one nanoceramic composite (Ceram X Universal), one microfilled hybrid composite (G-aenial), one microfilled hybrid composite (Essentia Enamel), one nanohybrid Ormocer based composite (Admira Fusion) and one supra-nano spherical hybrid composite (Estelite) were evaluated in this study (Table 2). For each brand, the A2 Vita shade was selected.
All materials were polymerized according to the manufacturers’ instructions into silicon rings (height 2 mm; internal diameter 6 mm; external diameter 8 mm) to obtain specimens identical in size. Cavities of these rings were slightly overfilled with material, covered with a transparent polyester film strip (Mylar strip, Henry Schein, Melville, NY, USA), pressed between glass plates and polymerized for 40 s on each side using a curing unit (Celalux II, Voco, Cuxhaven, Germany). One light polymerization mode was used for each material—standard: 1000 mW·cm⁻² for 40 s. The intensity of the light was verified with a radiometer (SDS Kerr, Orange, CA, USA). The light was placed perpendicular to the specimen surface, at a distance of 1.5 mm. A total of forty specimens of each composite resin were prepared.

Poggio C., Vialba L., Berardengo A., Federico R., Colombo M., Beltrami R, & Scribante A. (2017). Color Stability of New Esthetic Restorative Materials: A Spectrophotometric Analysis. Journal of Functional Biomaterials, 8(3), 26.

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Fabrication of Gradia Direct Composite Rings

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One hundred rings of Gradia Direct were prepared in accordance with manufacturer's instructions using a silicon disk (6 mm in diameter and 2 mm in thickness) and, externally, a silicon ring (8 mm in internal diameter and 2 mm in thickness). The composite rings were prepared by condensing the material between the disk and the silicon ring, placed on a white opaque paper background covered by a Mylar strip (Henry Schein; Melville, NY). A second Mylar strip was placed on the top of the filled space and a glass slide was pressed against the upper Mylar strip to extrude the excess composite resin and to form a flat surface. The distal end of the light guide was placed against the surface of the matrix strip; the material was then light-cured from the top with the curing light Celalux II (Voco, Cuxhaven, Germany). One light polymerization mode was used for each material - standard: 1000 mW/cm² for 40 s. The cordless curing unit was maintained at full charge before use, and irradiance was monitored periodically by using a radiometer (SDS Kerr, Orange, CA). The composite rings obtained measured 6 mm in diameter internally, 8 mm in diameter externally, and 2 mm in thickness.

Beltrami R., Colombo M., Chiesa M., Bianchi S, & Poggio C. (2014). Scattering properties of a composite resin: Influence on color perception. Contemporary Clinical Dentistry, 5(4), 501-506.

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Standardized Composite Disc Preparation

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The preparation of control specimens, for each brand, involved the creation, in accordance with manufacturer's instructions, of 50 discs using a silicon ring (6 mm in internal diameter and 2 mm in thickness). The composite discs were prepared by condensing the material in the ring, placed on a white opaque paper background covered by a Mylar strip (Henry Schein; Melville, NY). A second Mylar strip was placed on the top of the filled space and a glass slide was pressed against the upper Mylar strip to extrude the excess composite resin and to form a flat surface. The distal end of the light guide was placed against the surface of the matrix strip; the material was then light-cured from the top with the curing light Celalux II (Voco, Cuxhaven, Germany). One light polymerization mode was used for each material - standard: 1000 mW/cm² for 40 s. The cordless curing unit was maintained at full charge before use, and irradiance was monitored periodically by using a radiometer (SDS Kerr, Orange, CA). The composite discs obtained measured 6 mm in diameter internally and 2 mm in thickness.
All specimens were stored in distilled water for 24 hours in complete darkness at 37° C.
The two control groups obtained were:

- Group GD control: Including specimens assembled with Gradia Direct

- Group GN control: Including specimens assembled with G-aenial.

Beltrami R., Colombo M., Chiesa M., Bianchi S, & Poggio C. (2014). Scattering properties of a composite resin: Influence on color perception. Contemporary Clinical Dentistry, 5(4), 501-506.

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Standardized Composite Disc Preparation

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One hundred discs of Gradia Direct were prepared in accordance with manufacturer's instructions using a silicon ring (8 mm in internal diameter and 2 mm in thickness). The composite discs were prepared by condensing the material in the ring, placed on a white opaque paper background covered by a Mylar strip (Henry Schein; Melville, NY). A second Mylar strip was placed on the top of the filled space and a glass slide was pressed against the upper Mylar strip to extrude the excess composite resin and to form a flat surface. The distal end of the light guide was placed against the surface of the matrix strip; the material was then light-cured from the top with the curing light Celalux II (Voco, Cuxhaven, Germany). One light polymerization mode was used for each material - standard: 1000 mW/cm² for 40 s. The cordless curing unit was maintained at full charge before use, and irradiance was monitored periodically by using a radiometer (SDS Kerr, Orange, CA). The composite discs obtained measured 8 mm in diameter internally and 2 mm in thickness.

Beltrami R., Colombo M., Chiesa M., Bianchi S, & Poggio C. (2014). Scattering properties of a composite resin: Influence on color perception. Contemporary Clinical Dentistry, 5(4), 501-506.

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Fabrication and Characterization of Dental Composite Specimens

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A total of 90 disc-shaped composite specimens 10 mm in diameter and 1 mm thin were fabricated using a tetrafluoroethylene mold covered with a clear polyester strip (Mylar strip; Henry Schein, Melville, NY, USA). Composite resin specimens were then light-cured from the top surface using Valo light-curing unit (Ultradent Product, South Jordan, UT, USA) at a light intensity of 1000 mW/cm² in standard mode for 20 s. The light output power was measured and calibrated using a radiometer (Kerr, Demetron, Orange, CA, USA) after every 10 times of irradiation. To obtain a standard smooth surface, the top surfaces of the specimens were polished with a 1200-grit silicon carbide abrasive paper under water spray. Next, the specimens were stored at room temperature for 2 weeks.

Ghaemi A., Sharifishoshtari S., Shahmoradi M., Akbari H., Boostanifard P., Bagheri S., Shokuhifar M., Ashoori N, & Rakhshan V. (2023). Effect of bleaching with 15% carbamide peroxide on color stability of microhybrid, nanohybrid, and nanofilled resin composites, each in 3 staining solutions (coffee, cola, red grape juice): A 3-phase study. Dental Research Journal, 20, 74.

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Evaluation of Fissure Sealant Performance

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The fissure sealants tested in this study were Fissurit (Voco Gmbh, Cuxhaven, Germany), Grandio Seal (Voco Gmbh, Cuxhaven, Germany), and Admira Fusion (Voco Gmbh, Cuxhaven, Germany). The specifications of the adhesive system used and of all fissure sealants tested are listed in Table 1.
The fissure sealants were applied to the demarcated enamel area using silicon rings (height 2 mm; internal diameter 6 mm; external diameter 8 mm) to obtain specimens identical in size. The cavity of these rings were slightly overfilled with each sealant, covered with a Mylar strip (Henry Schein, Melville, NY, USA), and pressed against a glass plate. All specimens were then light-cured using a LED curing light in soft start-polymerization mode (Celalux 2 High-Power LED curing-light, Voco GmbH, Cuxhaven, Germany) for the times suggested by the manufacturers at an irradiance of 1000 mW/cm². The light was perpendicular to the specimen surface at a distance of 1.5 mm. Following polymerization, specimens were stored in distilled water for 24 h at 37 °C. For each of the four groups described ahead we obtained 20 specimens for each fissure sealant.

Beltrami R., Colombo M., Cavada A., Panizzi S., Poggio C, & Scribante A. (2022). Influence of Enamel Exposure to Acidic Drink on Shear Bond Strength of Different Fissure Sealants. Bioengineering, 9(1), 20.

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Standardized Aesthetic Material Testing

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The experimental design of the study is shown in Figure 1.
Esthetic restorative materials tested in this study are presented in Table 1. For each brand, the A2 Vita shade was selected.
All materials were polymerized according to the manufacturers' instructions into silicon rings (height 2 mm; internal diameter 6 mm; and external diameter 8 mm) to obtain specimens identical in size. Cavities of these rings were slightly overfilled with material, covered with transparent polyester film strip (Mylar strip, Henry Schein, Melville, NY, USA), pressed between glass plates, and polymerized for 40 s on each side using a curing unit (Celalux II, Voco, Cuxhaven, Germany). One light polymerization mode was used for each material - standard: 1000 mW/cm² for 40 s. The intensity of the light was verified with a radiometer (SDS Kerr, Orange, CA, USA). The light was placed perpendicular to the specimen surface at a distance of 1.5 mm to have the best intensity of light in accordance to the manufacturers' instructions.

Beltrami R., Ceci M., De Pani G., Vialba L., Federico R., Poggio C, & Colombo M. (2018). Effect of different surface finishing/polishing procedures on color stability of esthetic restorative materials: A spectrophotometric evaluation. European Journal of Dentistry, 12(1), 49-56.

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