Is a letterhead absolutely necessary for a dentist LOR?
The letter has the handwritten signature + credentials + contact number, but it's not on an official letterhead. My dentist is a busy guy so I don't want to bother him too much by nagging about little details...
" When an applicant saves an evaluation request, the evaluator will receive an email request to complete the evaluation. The email will include a link to an online portal where the evaluator can upload a letter up to 5MB. ADEA AADSAS does not provide a prompt or set of characteristics to include in the letter; evaluators are encouraged to provide information about the applicant’s academic ability, character, time management skills, among other items deemed important. Itis recommended that the letter be on letterhead and include a signature. Please check the “Program Materials” section for school specific requirements regarding letters of evaluation. "
That's taken from ADEA. So it's not absolutely necessary, although it's recommended.