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METHODS FOR WHITENING TEETH
专利权人:
The Procter &; Gamble Company
发明人:
Paul Albert Sagel
申请号:
US16889715
公开号:
US20200289247A1
申请日:
2020.06.01
申请国别(地区):
US
年份:
2020
代理人:
摘要:
In a tooth whitening method, a whitening composition is applied to at least one tooth. The whitening composition is maintained on the at least one tooth for a first time period. After the first time period, a light radiation is directed toward the at least one tooth for a second time period. The first time period has a duration greater than 50% of a total duration of the first and second time periods.
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