The materials selected for this study, codes, types, lot numbers, manufacturers, compositions, and powder/liquid proportions, are presented in Table 1.
and brand Composition Manufacturer Translucent composite 0.018 Mixture of cured copolymers, Bis-EMA, TEGDMA, and glass fibers BioMers Products LLC, Naples, FL, USA Nickel titanium 0.018 52% Ni, 45% Ti, and 3% Co International Orthodontic Services Inc., Houston, TX, USA Wires of 0.018-in 0.018-in
Product names, manufacturers, chemical compositions, abbreviations, and batch numbers of the materials used in this study are listed in Table 1.
It seems very likely, that the manufacturer changed the composition of the colour in order to create an alternative to the traditional "Chrome green" based on more durable pigments.
Fig. 1 Experimental groups considering restorative sequence Table 1 Materials used in this study Materials Product name Composition Manufacturer Calcium hydroxide cement Dycal Base paste: 1,3-butylene glycol disalicyate, zinc oxide, calcium phosphate, calcium tungstate, iron oxide pigments.
Information about the pH (which was measured in triplicate using a pHmeter – Analion, model FM 608, Ribeirão Preto, SP, Brazil), manufacturer, lot number, composition, and directions of application of the bonding agents used are presented in Table 1.
Table 1 Tested materials, composition, manufacturers and lot number Type Eugenol Materials Composition Manufacturer Lot Zinc oxide based endodontic sealer YES Endofill Zinc oxide, hydrogenated resin, bismuth subcarbonate, barium sulfate, sodium borate.
Dr John Ramsey, a toxicologist based at St Georges University London, told the Guardian that testing for drugs such as spice was difficult because manufacturers change their composition changes so often.
Estimated heat transfer coefficients and thermophysical properties derived from the manufacturer's published compositions were used as input data for the model.
Since toothpaste manufacturers change the composition of the toothpastes on a regular basis also regarding the abrasive part and since the RDA value is the only measurement of abrasivity that is being tested, it is important to measure also a roughness value of the abraded material.
Table 1 Materials used and treatment protocol Material Composition Protocol Manufacturer Adper Scotchbond Multiuse adhesive system Primer: HEMA, polyalkenoic acid.
