How do you write a correct CV format?

7,200,0000

Formally and cut out all slang. If he is old style, hand written letter. Modern then e-mail.

how to write c.v for a dentist

Yourname@whateversiteyouregisteredanemail.com hope I helped. Yours till the sunset, Karrmy :D

Of course - it's only a shorhand for "It is good to hear from you"