Some dentists are fab, but others just wanna make a fast buck and don't like it if you don't go for 10 years.
They're not making a huge profit out of someone if they don't go to them for 10 years. It really really fucks me off too, that dentists 'strike you off' their books if you don't go for 2 years. No-one else does that. Only dentists.
It's like they are desperate to make as much money as possible, and it's so wrong to use people this way, and force them to pay £60 a time to come see you every 6 months - even if there is nothing wrong.
Way back in the day, (pre 1990's,) dentists used to fill and drill the teeth of loads of people - just for the money/profit. My teeth are in below-average condition, purely because they were drilled and filled to fuckery in the 1970's. They would be much better if I had never gone to the dentists as a child/teen.
This past few years the dentists have had the fucking audacity to slag off my teeth, constantly comparing my daughter's teeth to mine. (Saying stuff like 'hey Hannah, your teeth are lovely, not like your mom's!')
Well of COURSE they are fucking better; she is 35 years younger than me, and didn't have any money-grabbing dentists wrecking her teeth for profit.
- disclaimer; not all dentists did this, but some did.
Also surprised OP that you never knew about free dental treatment for people on benefits/low income.
As for your dentist @GranolaLover he has probably got a limited budget and doesn't want to 'waste it' on someone whose teeth are not really bad ... But I agree with @dailymail that he could do something if he really wanted to, especially the tartar build-up. Why the F can he not deal with THAT simple job???
You may have to go private if you want them improving though, as your dentist sounds like an arse.