Preventive dental service的意思|示意

The department's Dental Service promotes oral health in the community through promotive and preventive oral health services.

的翻译是：部门的牙科通过促进和预防口头卫生业务促进在社区的口头健康。

Preventive services are delivered through the School Dental Care Service which provides annual dental examination and basic dental care to about 437230 children annually.

预防服务由学童牙科保健服务部提供。 这项保健服务每年为约437230名学童提供周年牙齿检查和基本的牙齿护理服务。