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Question 1 of 25
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What is the purpose of applying 35 to 37 percent phosphoric acid to enamel before bonding?
To dissolve inorganic hydroxyapatite and create microporosities for micromechanical retention
To remove the organic pellicle only
To form a chemical bond between enamel and resin
To remove collagen fibers from enamel
To dehydrate the enamel surface
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