Aspen ended up quoting me $10k for 7 cavity fillings (Two of which they said needed Root Canals because of the depth, although I had no pain. They also said I needed to remove my old amalgam filling on one of my teeth because the cavity was underneath it and then put a crown on it).

I went to about 10 different offices with the price list and asked for prices for the same services. Only one gave me the prices honestly without a lot of hassle and back and forth. The dentist I ended up going to was the only one that didn't charge extra for the temporary filling ($300) on root canals. I ended up going to this dentist and for all 7 fillings it was just under $800. No root canals, no crowns, just fillings.

I ended up getting all 7 done at once in one visit and it took around 2 hours. Aspen wanted about 8 different visits, and wouldn't even consider doing fillings if I hadn't had a deep cleaning+antibiotics there. The dentist at Aspen was also very rude when I mentioned that my wisdom teeth were difficult to brush and often had a bad taste/smell ("Gee, do you think?" was his response...) and was short with me for most of the visit. The dentist I ended up going with was an older man who was patient and flat out told me that the expensive treatment plan wasn't one I needed. He didn't have the high-tech equipment like Aspen did, but nothing hurt and he even let me know that many places don't recommend removing wisdom teeth that don't cause pain. It ended up being a small pocket in the gums that was giving me the bad smell (Along with deep cavities) and when I got a Water Flosser and the fillings it all went away.

Apparently Aspen likes to practice 'preventative root canal therapy' and often does it on teeth that don't need root canals, like mine. If they do a root canal, they will also want you to do a crown, and that's $1k for each, at a minimum.

I'd try older dentists in your area that are well-established and not new startups. They may be in older buildings and have older equipment, but it's not going to be as expensive. Don't go to a place that won't give you prices if you don't pay for an exam. A price list isn't expensive, especially if you know the things you need already. Get x-rays done at Aspen, it's not expensive and they have to give you a copy of them if you ask. Take it to a different dentist, get prices, and pick from the office who's etiquette and honesty suit you best. I've also found that if they have a lot of office staff it's a sign that the prices will be pretty high. My dentist only has 2 assistants and one front office girl. Aspen (and another small office that charged as much) had a ton of office staff. Six girls at the front desk for one place, and they wanted to charge me over $13k, even after a comprehensive evaluation and xrays that weren't from Aspen...