The nation's largest dental group said chewing sugarless gum for 20 minutes after each meal can reduce tooth decay.

国家最大的牙科小组说在每顿饭后咀嚼无糖的口香糖20分钟可以减少牙齿腐蚀。

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Conclusion: Predicting the tooth size of cuspid and bicuspid group in malocclusion can't simply follow the law of normal occlusion.

结论：临床上对错尖牙、双尖牙组的预测不能简单等同于正常。

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Objective: To study the tooth size correlation between permanent cuspid and bicuspid group and other teeth groups in malocclusion.

目的：研究错牙合、正常牙合的尖牙、双尖牙组与其它组牙的相关性，为尖牙、双尖牙组的预测提供科学依据。

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Portland city leaders say they were spurred toward fluoride when a citizens' group noted rising tooth decay among low-income and minority children.

WSJ: Fight Over Fluoridated Water Splits Portland's Left

Commenting following the publication of the report, Eamonn Donaghy of the Northern Ireland Economic Reform Group said that the Irish Republic had "fought tooth and nail" to keep its corporation tax rate of 12.5% in negotiations over its economic future last year.

BBC: Cut in corporation tax 'could cost NI ?280m', PwC says