On our annual vet trip it turns out big boy cat (4yo) has a “minor build up” on his teeth with advice to try brushing them. Before I start on what I can only imagine will be a tricky, messy task which will no doubt result in me covered in foul smelling cat toothpaste and himself sulky staring through the cat flap, does anyone have any good advice or best tips? This is very new to us!