The Importance of Oral Health in Pets
Dental disease is the most commonly diagnosed health problem in adult dogs and cats. By age three, the majority of pets have some degree of periodontal disease — an infection of the structures supporting the teeth. Left untreated, the bacteria involved do not stay in the mouth. Research has linked chronic oral infection to changes in kidney, liver, and cardiac tissue, making dental care far more than a cosmetic concern.
Professional dental cleaning under general anaesthesia is the gold standard for addressing this disease effectively. Understanding what the procedure involves — and why anaesthesia is necessary — helps owners make informed decisions for their pets.
Why Anaesthesia Is Necessary
This question comes up frequently, and it deserves a direct answer. Thorough dental assessment and cleaning cannot be performed safely or effectively in a conscious animal.
Scaling tartar from teeth — particularly below the gumline, where periodontal disease begins — requires precise instruments and complete stillness. A dog or cat that moves unpredictably risks laceration of the gums or throat. Beyond safety, a conscious animal will not permit the probing, radiography, and subgingival cleaning that make the procedure diagnostically meaningful.
Anaesthesia-free dental cleaning, offered by some grooming services, removes only visible surface tartar. It creates the appearance of cleaner teeth without addressing disease below the gumline, and it provides no diagnostic information whatsoever. The British Veterinary Dental Association does not endorse this practice.
What Happens During a Professional Dental Clean
A proper veterinary dental procedure follows a structured sequence.
Pre-Anaesthetic Assessment
Before any anaesthesia is administered, your vet will examine your pet and typically run a pre-operative blood panel. This confirms that the liver and kidneys are functioning adequately to process anaesthetic drugs and screens for conditions that might complicate recovery. In older or higher-risk patients, an electrocardiogram or chest X-ray may also be recommended.
Scaling and Charting
Once anaesthetised, your pet is intubated to protect the airway from water and debris. An ultrasonic scaler removes calculus from all tooth surfaces, including below the gumline. Every tooth is then probed individually to assess pocket depth — the space between the gum and tooth root — and each finding is recorded on a dental chart.
Dental Radiography
Intraoral dental X-rays are essential. Studies have found that between 27 and 42 percent of dental abnormalities in dogs, and up to 53 percent in cats, are only visible on radiographs. Root resorption, bone loss, retained roots, and tooth fractures beneath the gumline would all be missed without imaging.
Treatment and Polish
Based on probing and radiograph findings, the vet may extract diseased teeth, treat exposed roots, or apply sealants. Once cleaning and any treatments are complete, teeth are polished to remove microscopic etchings left by scaling, which would otherwise accelerate tartar reattachment.
Understanding Anaesthetic Risk
No anaesthetic procedure is entirely without risk, and it is reasonable to ask about this. The honest answer is that modern veterinary anaesthesia is very safe when performed with appropriate monitoring and pre-operative screening.
The risk of anaesthesia-related death in healthy dogs and cats is estimated at roughly one in one thousand to one in two thousand procedures. This rises in older animals or those with underlying conditions, but pre-operative assessment exists precisely to identify and manage these risks in advance.
During the procedure, a qualified veterinary nurse monitors heart rate, blood pressure, oxygen saturation, respiratory rate, and temperature continuously. Intravenous fluid support maintains blood pressure and aids recovery. Most healthy adult pets are discharged the same day and are fully alert within a few hours.
How Often Does My Pet Need a Dental Clean?
This varies considerably between individuals. Genetics, diet, tooth alignment, and home care all influence how quickly calculus accumulates and how fast disease progresses.
Small dog breeds and brachycephalic breeds — those with short, flat faces — are disproportionately affected by dental disease due to overcrowded teeth and reduced jaw space. Some require annual cleaning; others may go two or three years between procedures. Your vet will advise based on your pet's specific findings and history.
Home Care Between Cleanings
Professional cleaning removes existing disease, but daily home care slows its return. The most effective method remains daily toothbrushing using pet-safe toothpaste — human toothpaste contains fluoride and xylitol, both of which are toxic to pets.
For pets that will not tolerate brushing, dental diets, enzymatic chews, and water additives with evidence-backed formulations can offer partial benefit. Look for products carrying the Veterinary Oral Health Council (VOHC) seal, which indicates the product has met established standards for plaque or tartar control in clinical trials.
Signs That Your Pet May Need Dental Attention Now
- Bad breath that is noticeably worsening
- Difficulty chewing or dropping food
- Pawing at the mouth or face
- Visible brown or yellow tartar on teeth
- Red, swollen, or bleeding gums
- Reduced appetite or preference for soft foods
- Facial swelling, particularly below the eye
Many pets with significant dental disease show no outward signs at all, which is why regular oral examinations at annual check-ups are so important. Pain tolerance in cats especially is high, and owners are often surprised to learn their cat had a severely diseased mouth with no apparent behavioural change.