The Importance of Dental Hygiene in Dogs and Cats

Periodontal (dental) disease is the most common clinical condition diagnosed in adult dogs and cats - affecting an estimated 80% of dogs and 70% of cats by age 3. Despite this prevalence, many pet owners don't realise their pet has dental disease until it's causing significant pain, because animals instinctively conceal discomfort.

**How dental disease progresses**

Within hours of eating, a biofilm of bacteria (plaque) begins to form on tooth surfaces. Without regular mechanical disruption (brushing), plaque mineralises into tartar (calculus) within 24–48 hours. Tartar is yellow-brown in colour and rough in texture, providing more surface area for further bacterial colonisation.

As tartar accumulates, bacteria at the gumline cause gingivitis - inflamed, red, swollen gums that bleed easily. Left untreated, inflammation progresses below the gumline, destroying the bone and ligaments that support the tooth (periodontitis). Pockets form between the tooth and gum, allowing more bacteria to colonise. Eventually, tooth root abscesses, tooth loss, and jaw bone damage occur.

**The systemic effects**

The inflammatory burden of dental disease isn't just local. Bacteria from infected gums can enter the bloodstream - a phenomenon called bacteraemia. There is well-established association between severe periodontal disease and degenerative heart valve disease, kidney disease progression, and liver inflammation. While the causal relationship is still being studied, the evidence is sufficient to recommend dental care as part of overall preventive health.

**What you can do at home**

Daily toothbrushing is the gold standard. Use a soft-bristled pet toothbrush (or finger brush) and enzymatic pet toothpaste - never human toothpaste, which contains fluoride and xylitol, both toxic to pets. Enzymatic toothpastes work chemically to break down plaque even without perfect brushing technique.

Introduction must be gradual - over 2–4 weeks - starting with simply letting your pet taste the toothpaste, then gentle gum massage, then introducing the brush. Most pets tolerate daily brushing once properly accustomed.

**Professional dental cleaning**

Regardless of home care, most dogs and cats need professional dental cleaning under general anaesthesia periodically - how often varies by individual. This allows proper scaling and polishing both above and below the gumline, dental X-rays to assess root and bone health, and extraction of teeth that cannot be saved. Anaesthetic-free dental cleaning ('scraping') is cosmetic only and does not address sub-gingival disease.