NHS Dentistry band clarification

Henrta

Few questions to help me understand:

1/
If I go to see my dentist under the NHS in Dec and they say I must return for a January appointment for a 'clean' and it was only a standard scaling, should that have been covered in the first routine check-up appointment and taken care of then or been a free appointment if they didn't have time that day? (both appointments were quick regardless, around 10 minutes)

2/
Under what circumstances would previously mentioned dental clean, done by same dentist not a hygienist, be worthy of escalating to band 2 for the second appointment?

3/ 
At the conclusion of the second appointment, if my dentist then says I need to go up to band 3 for further treatment, but I must make a decision soon if I want it to be one inclusive cost, because this course of treatment is running out under the 2 month rule, is that true seeing as this very option was discussed for the issue in December? Is this not all the same course of treatment?

Thanks

Undervalued

https://forums.moneysavingexpert.com/discussion/6652173/nhs-dentistry-band-clarification

My understanding is….

1 - Yes. However if cosmetic and not clinically necessary it would attract a private charge if you wanted it.

2 - More extensive treatment to address gum disease - not quite sure where the line is drawn.

3- My understanding is that only dentures, crowns etc are band 3. I wasn't aware that scaling etc, however detailed, could be.

But maybe I am out of dare?