Dear Concerned of Salisbury,
You have indeed found yourself in a rather delicate situation here.
Your precious pooch has a bout of halitosis but how does one resolve the situation without hurting the little fella's feelings?
One could try taking the dear chap with you when you brush your own teeth and guide him to the altar of breathfreshness by showing him how one cleans one's teeth.
One could check out Amazon..they may well stock back copies of the world famous 'Pooch Dental Care; 3 easy steps to lasting canine freshness.'
Pooch Polo Mints..sugar free of course.
Of course Mrs Concerned, one could choose to ignore the above drivel and listen to the good ideas given by the more saner members of VV.
Yours sincerely
Mad Mandy