Blue light

I had this dream that I was racing to the dentist office to get there on time. 9 or 10 am. When I got there, there was a whole bunch of people waiting as well. I was shocked at how many. My mom and son were in the dream somewhere doing something- like maybe my mom was watching him? I cannot remember. I sat down and when the dentist came in he called a lot of people to the back. I was curious as to why so many were called back all at once. Like maybe 10 mins later I was called back and there was all the people he called sitting in dentist chairs in 2 rows facing each other. I sat in the first chair on the left. The dentist was working on the lady next to me. When he was done he asked everyone "who is next?" Then He turned to me and said that I was right next to him so he is going to work on me, I said the other ladies were sitting before me and he said something like it does not matter. So I assumed we all had the same appoinment time. He was going to clean my teeth but I told him I was only there for cavities. Then I thought it was weird I would have him work on uncleaned teeth but I only had a cavity appointment. Everyone else was there for a cleaning, I do not know how I knew that but I did. I told him I have not been to the dentist in a long time, I said that I bet I had like 10 cavities since I did not go to the dentist regularly. He looked at my teeth, counted my cavities . There was 7 or 8 on bottom and 3 or 4 on top. He laughed and he said I was right there was 10. He then went to fill them. There was a blue light he used to have the cavities dry, he pointed it in my mouth. He then used a brush and got the white cavity fillers ( like if you were putting on acrylic nails ). He placed the fillers on the cavities and a lot of them were in the middle of my teeth, in front, behind my teeth. It was a quick thing- filling 10 cavities and I remember thinking that. I was done, he told me to go to the front. I paid and then left. Then I woke up.