How do you look after your dogs' teeth?

I'm Dr Joe Inglis BVSc MRCVS, a vet researching dental healthcare for dogs because I'm concerned that most dogs are not receiving the regular dental care they need.
1.How concerned are you about your dogs' dental health?
2.How do you currently look after your dogs' teeth? (check all that apply)
3.Have any of your dogs had any dental treatments in the last 5 years? (check all the apply)
4.How often do your dogs have routine dental treatment at the vet?
5.If you have had your dogs' teeth cleaned by your vet, approximately how much did it cost?
6.Would you have your dogs' teeth cleaned more frequently if it was less expensive?
7.How often do you think you would ideally have your dog's teeth cleaned?
8.Would you consider taking your dog to a dental-only practice for routine dental care?
9.Would you consider paying a monthly subscription of around £20 for dental healthcare for your dog, covering annual checkups, teeth cleaning & extractions, toothpaste, and dental chews?