Ask a Dentist. Get Answers to Your Dental Questions.
Thanks for putting up your question on Just Answer.
No, that doesnt sound normal to me. A long span bridge , or multiple crowns, should take about 15 days at the most. Why is he making another impression?
If he admits a mistake with his first impression or a lab error, only then can this delay be justified.
Hope this answers your question. Feel free to contact me again for more information. Please leave a positive rating for me if this answer has helped you. I do not get credit for it otherwise.
Good Luck !