| 21. | Working chemically, a bleaching agent is used to carry out an oxidation reaction in the enamel and dentin.
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| 22. | The trays often don't fit and a patient ends up eating a lot of the bleaching agent, Goldstein said.
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| 23. | In the dentist's office, argon lasers are sometimes used to activate the bleaching agents and speed up the process.
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| 24. | 1900-Fuller's Earth Plant mined clay to be used as bleaching agent and as an absorbent for oil and fat.
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| 25. | Sodium borohydride is used as a bleaching agent for wood pulp, and blowing agent for plastics, among other uses.
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| 26. | They added that the substance, an antiseptic and bleaching agent, should generally be harmless if it was sufficiently diluted.
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| 27. | Chlorine dioxide is widely used as a bleaching agent in paper mills and as a treatment in water treatment plants.
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| 28. | A chemical solution is applied to the teeth and a special light may be used to help activate the bleaching agent.
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| 29. | The only remedy in this case is to remove the finish down to bare wood and try a commercial bleaching agent.
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| 30. | A toothpaste that promises to whiten teeth with a bleaching agent can do little to change the color of teeth, dentists say.
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