RYERCAT Space Dual Sided Cat Toothbrush - Only 8mm Wide to fit into Cat's Mouth - Cat Dental Supplies

It will fall out eventually. For the brush I would recommend a smaller one that can fit his mouth better. We also brush our boy tooth almost every day. The one we use is a Canadian brand, here is the link on Amazon ca : https://a.co/d/08oIo6Tl Not sure which paste you use but we give ours this one and he loves it https://a.co/d/03dqGKPY Recommendation is actually from wife (she is a vet)

You have a beautiful boy! It will fall out eventually. For the brush I would recommend a smaller one that can fit his mouth better. We also brush our boy tooth almost every day. The one we use is a Canadian brand, here is the link on Amazon ca : https://a.co/d/08oIo6Tl Not sure which paste you use but we give ours this one and he loves it https://a.co/d/03dqGKPY Recommendation is actually from wife (she is a vet).