I asked Jennifer why my vet never mentioned this.
She paused. "Dental procedures are a significant revenue source for clinics. I'm not saying it's a conspiracy, but... there's not much incentive to recommend a $47 water additive when a cleaning costs $1,500-$2,500."
Then she explained why everything I'd tried had failed:
Dental chews? They remove about 5% of surface tartar through abrasion. But they can't touch the biofilm where bacteria actually live.
"Dental formula" kibble? Same problem. Scrapes visible buildup, does nothing to the bacterial colonies underneath.
Brushing? This is the most effective mechanical option—it removes about 60% of plaque. But the other 40% doubles in 20 minutes. You'd need to brush every hour to keep up.
Professional cleanings? They work—temporarily. But without addressing the biofilm, bacteria recolonize within weeks. That's why vets recommend annual cleanings. It's a subscription service for your dog's teeth.