To establish normal values of female soft-tissue profile in different dental age groups who lives in Shanghai district with han nationality.

建立上海地区正常牙合汉族女性不同牙牙合期的软组织侧貌的正常值范围。

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Results: Among 33 items measured, 4 Angle items, 12 distance items and 6 aesthetic-line and ratio items show significant difference in three dental age groups respectively.

结果：在所测量的33个项目中，分别有4项角度、12项线距和6项美线及比例在3个牙合期中有显著性差异。

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Good oral hygiene and regular dental care are important, whatever your age.

无论年龄大小，良好的口腔卫生和定期的牙齿保健都非常重要。

《柯林斯英汉双解大词典》

As part of the changes Tynwald will also be asked to consider lowering the exemption age for prescriptions and dental charges from 18 years to 16 years, although those under the age of 19 and in full-time education will still qualify for free dental care.

BBC: Isle of Man over-sixties NHS charges proposed

Only 30% of old people are now covered by a dental plan, compared with 54% of working age adults and 80% of children.

FORBES: Magazine Article