Of all the preventable problems in a dog's life, this is the one owners find least interesting and vets see most often. Plaque forms within a day, hardens into tartar within a few days, and by middle age a great many dogs have inflamed gums, painful teeth and an infection that has been progressing quietly for years.
The dog says nothing about it. Dogs continue to eat with a fractured tooth or an abscess, because refusing food is not an option evolution left them, and owners reasonably conclude that everything is fine.
What actually happens in the mouth
Bacteria form a film on the tooth within hours of cleaning. Left alone it mineralises into tartar, which cannot be brushed off and which pushes the gum away from the tooth. The pocket that forms is where the real damage happens: the ligament that holds the tooth breaks down, bone is lost, and the root becomes infected.
Beyond the mouth, chronic dental infection is a continuous load on the body, and there is a recognised association between dental disease and problems elsewhere. It is not a cosmetic issue.
Bad breath is not what dogs smell like. It is the smell of bacteria in an inflamed mouth, and it is the earliest sign most owners are given.
The signs, in order of appearance
- Breath that has changed, or has become unpleasant enough to notice from a distance
- A yellow or brown line where the tooth meets the gum, most visible on the upper cheek teeth
- Red, swollen gum margins, or bleeding when you lift the lip
- Chewing on one side, dropping food, or taking food more gently than before
- Pawing at the face, rubbing the muzzle along furniture
- A swelling below the eye, which usually means an abscessed root and needs seeing today
- A dog that has become quieter or grumpier, which owners attribute to age and which frequently resolves after dental treatment
Brushing, which is the whole answer
Daily, with a dog toothpaste, never a human one, which contains fluoride and sometimes xylitol. A soft brush or a finger brush. You are cleaning the outer surfaces along the gum line, which is where the disease starts; the inner surfaces matter far less because the tongue does most of that work.
Build it over two weeks rather than starting with the full job. A few days of letting the dog lick the paste off your finger. A few days of touching the finger to the outside of the teeth. Then a few teeth at a time, then the whole side, then both sides. Thirty seconds a side, after the evening walk, is enough.
Brushing three times a week is meaningfully better than nothing and meaningfully worse than daily. The difference between a dog brushed daily from two years old and one never brushed is, over a decade, several general anaesthetics and a good deal of money.
What helps at the margins
Dental chews with a proper mechanical action, water additives, dental diets and rubber toys all contribute a little. Treat them as supplements to brushing rather than replacements, and look for products with independent veterinary dental approval rather than marketing claims.
Avoid anything harder than you would be happy to hit your own knee with: antlers, hooves, bones and hard nylon toys are a common cause of slab fractures of the big chewing teeth, which then need extraction under anaesthetic. The rule of thumb is that if you cannot dent it with a thumbnail, it is too hard.
Raw bones are controversial: some owners use them successfully, and they carry risks of fractures, obstruction and bacterial contamination. Cooked bones are never acceptable, in any form.
The professional clean
At some point most dogs need a scale and polish under general anaesthetic. This is not a failure. It is done under anaesthetic because a conscious dog cannot tolerate probing below the gum line, and because the x-rays that show what is happening at the roots are impossible otherwise.
Ask your practice what is included: pre-anaesthetic blood tests, dental radiographs, the clean itself, extractions if needed, pain relief and the follow-up. Ask for a written estimate with a range, since nobody can know how many extractions are needed until the mouth is examined properly.
Be cautious about anaesthesia-free dental cleaning offered outside veterinary practices. It removes visible tartar from the crown, which looks impressive, and does nothing about the disease under the gum, which is where the problem is.
Recovery, and starting again
After a dental, expect soft food for a few days if there were extractions, pain relief as prescribed, and no hard chews for the period your vet specifies. Most owners are astonished by the change in the dog's demeanour within a fortnight, which tells you how much discomfort had become normal.
Then start brushing. A mouth that has just been cleaned professionally is the easiest possible starting point, and the tartar comes back within months if nothing changes.
Making it part of the routine
Handling is half the battle. A dog that is used to having its mouth, ears and paws touched, taught with food in five-minute sessions, is a dog that accepts brushing, tolerates vet examinations and is safer to treat in an emergency.
Puppies should have their mouths handled from the first week at home, not because anything needs doing, but because the habit is free to build at ten weeks and expensive to build at five years.
General information for dog owners in Luxembourg, not veterinary or legal advice. For your own dog, ask your vet, a qualified behaviourist or your commune. How this journal is written and checked.
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