1. 英文咨询信范文：

Subject: Inquiry Regarding Health Insurance Plan Coverage

Dear [Insurance Provider's Name],

I hope this message finds you well. My name is [Your Full Name], residing at [Your Address]. I am writing to inquire about the coverage aspects of the health insurance plan that I recently signed up for.

As part of my plan, I understand that certain medical expenses are covered, but I would like to confirm if dental care is included within the scope of the plan. Specifically, I am interested in knowing whether routine dental check-ups, fillings, and cleanings are reimbursable under this policy. Additionally, I would like to inquire about the coverage for major dental work such as crowns and bridges.

Furthermore, I am concerned about the annual deductible that I have to meet. Could you please clarify the amount and how it applies to dental expenses?

Please provide me with details regarding any co-payments that will be required for dental services covered under the plan. I am also interested in the network of dental providers that I can use for these services.

Thank you for your assistance. I look forward to receiving the information at your earliest convenience.

Sincerely,

[Your Full Name]

[Your Contact Information]

2. 翻译：

Subject: 关于健康保险计划覆盖范围的咨询

尊敬的[保险公司名称]，

希望这则信息能找到您一切安好。我叫[您的全名]，居住在[您的地址]。我写这封信是为了咨询我最近加入的健康保险计划的相关覆盖事项。

作为计划的一部分，我知道某些医疗费用是覆盖的，但是我想确认牙科服务是否在我的保险计划内包括在内。具体来说，我对常规牙科检查、补牙和洗牙是否可以报销此政策下的问题很感兴趣。此外，我还想知道对于如牙冠和桥体等大型牙科手术是否在保险范围内？

此外，我对必须满足的年费免赔额感到担忧。请您详细说明免赔金额以及它如何适用于牙科医疗费用？

请您提供有关需要支付任何牙科服务覆盖下保险的相关共付费用的详细信息。我对可以使用这些服务的牙科网络也很感兴趣。

感谢您的帮助。我期待着尽快收到您的信息。

此致，

[您的全名]

[您的联系方式]

请注意，以上信件和翻译是假设性的，实际的保险公司的名称、地址和联系方式应替换为真实的保险提供商信息。在撰写实际的咨询信时，应确保提供正确的详细信息，并遵循保险提供商的写作风格和格式要求。