Some whitening toothpastes and gels contain no bleaching agent, but rely on a polishing paste similar to that used by jewelers to clean and shine silver.
42.
It was later converted to chemical plant, owned by Thor Chemicals, and produced chlorine bleaching agents for use in the dye industry in Manchester at the time.
43.
Bleaching agents are said to enable and encourage overgrowth of undesirable organisms, including yeast to grow possibly leading to changes in the surrounding tissues of the mouth.
44.
The warehouse contains sodium borohydride, which is used as a bleaching agent for wood pulp, and blowing agent for plastics, among other uses, fire spokesman Hector Torres said.
45.
Fill the tray with the bleaching agent your dentist prescribes, slip the tray over your teeth and keep in place for at least two hours for best results.
46.
Karen Evans, an elementary physical education teacher in the Cy-Fair School District, tried a bleaching kit from her dentist, but her gums were too sensitive to the bleaching agent.
47.
The juice also acts as a mild bleaching agent for keeping white vegetables white-- try adding some to a pot of cooking potatoes-- and retaining bright colors in vegetables.
48.
Development of more biodegradable alternatives to the EDTA and other bleaching agent constituents were sought by major manufacturers, until the industry became less profitable when the digital era began.
49.
Sodium hydrosulfite is used as a bleaching agent for making paper, said Mike Lawson, a product specialist for Clariant Corp ., the North Carolina-based company that makes the chemical.
50.
Some folks turn to the Internet to purchase dentist-office strength bleaching agents and apply them without proper supervision, something the Academy of General Dentistry warns people not to do.
