I brush Otis's teeth at night just after I brush mine. During the day he gets Greenie's dental chew.
Otis's first toothbrush lol I was so proud
I also use the spray which took a couple of tries before he liked it
I only brush Lady and Prince's teeth one or twice a week. I need to get better at that. I put Nylabone Advanced Oral Care in their drinking water and sprinkle ProDen Plaque Off for animals on their food once a day which works systemically through the saliva to breakdown bacteria that creates tatar. They also get bully sticks and my secret Santa sent a couple deer antlers which they are now working on too. Both dogs had dental cleanings before I got them so I am trying to maintain the good clean teeth. I will say something I am doing is working because Lady's back teeth and pointy eye teeth were yellowed and now they are pretty close to a decent white color. Prince had a couple of his tiny front lower teeth removed when he had his dental so I don't want him to lose any more.
Odie gets a raw bone-in meal a few times a week, and bully sticks. I really stink at brushing her teeth and have tried just a toothbrush and water, but once our toothpaste comes in the mail, I'm going to make an effort to do it every day even if I'm not the best at it.