Please choose the correct ending to complete the given sentence: Health: [header] How to choose an oral radiologist [title] Check to make sure the dentist office is in-network. [step] If you have dental insurance, it's likely that only certain dentist offices are in your network. You can either start with your insurance's online tool to find a dentist or check for certain dentists once you've narrowed down a list.

Ending1: [title] Ask any local contacts if they do exist. [step] Whether your dental professional or family is in the network or knows of any local dentists in your area, they may be able to give you a rough idea of their reputation. Ending2: [title] Use a database to check for dentists and radiologists nearby. [step] Using a database can help you easily narrow down your search. Ending3: Familiarize yourself with your local dentist by checking the mouthwash at their office. [substeps] If the dentist on your list of applicants is on a first come, first served basis, only these dentists are likely to be on your list. Ending4: [substeps] Ask for your oral radiologist email or visit their office and look to see if the dentist has a network or is in an affiliated office. Since there's nothing you can do there, you should only check the dentist's website.

Answer format: ending1/ending2/ending3/ending4