So easy to rule, the pain of small, low-cost dental caries, gingivitis develop into the treatment of complicated, painful, higher costs of pulp and periodontitis.

 
  • 使简单易治、痛苦小、费用较低的龋齿、牙龈炎发展成治疗复杂、令人痛苦、费用较高的牙髓病和牙周炎。
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