For most dogs, yes. In the largest recent study, 10 in every 10,000 dogs anesthetized or sedated at UK vet practices died from causes linked to the anesthetic within 48 hours, and most of the risk sat with older dogs, sick dogs and emergencies. A planned dental in a healthy dog that has been checked over first is none of those.
The anesthetic is also what makes the cleaning worth doing. A dental cleaning under general anesthesia is the only way your vet can scale below the gum line, probe each tooth and x-ray the roots.
The risk in plain numbers
A 2022 study from the Royal Veterinary College went through the records of 157,318 dogs given a general anesthetic or sedation at more than 300 UK practices between 2010 and 2013 (Shoop-Worrall and colleagues, Veterinary Anaesthesia and Analgesia). It counted deaths where the anesthetic couldn't reasonably be ruled out as a cause. That came to 159 dogs within 48 hours, about 10 in 10,000, and 219 within two weeks, about 14 in 10,000. For routine neutering it was closer to 1 in 10,000.
Those figures cover every reason a dog goes under, from x-rays to emergency surgery on a very ill dog. Healthy dogs having planned procedures sit below that average.
Dental work has its own numbers. Four specialty dental clinics in Maryland reviewed 3,210 dogs anesthetized for dental imaging or oral surgery between 2021 and 2023 (Spaar Weiss and colleagues, 2025). Twelve died within two weeks of the anesthetic, 0.37%. That count includes deaths from any cause, and referral clinics see the hardest mouths and the longest procedures, so a routine clean at your own vet isn't the same case.
Which dogs carry more of the risk
Age is the one risk factor every mortality study here agrees on. In the UK study, dogs aged 5 to 9 had about 5 times the odds of an anesthetic death compared with young dogs aged 6 to 18 months, and dogs 9 or older had 12.8 times the odds. Dogs 9 and over made up half of the deaths but only 12% of the dogs that came through fine. In the dental clinics, the dogs that died had a median age of 12, against 7 for the dogs that didn't, and age was the only factor still linked to death once the others were taken into account.
Health going in is the next big one. Vets grade each patient's health on a five-point scale from the American Society of Anesthesiologists, and a poorer grade raised the odds in both UK studies, as did a more urgent procedure. A planned dental is the opposite of an emergency.
Weight is less clear. An earlier UK analysis found lighter dogs had higher odds (Brodbelt and colleagues, JAVMA 2008), but body weight wasn't a significant factor in the dental clinic study. Small dogs do get gum disease far more often, as our guide to why small dogs have worse teeth explains, so their owners face this question sooner.
Flat-faced breeds have more trouble after the anesthetic than during it. In a study of 223 brachycephalic dogs and 223 matched dogs with longer noses, problems during recovery were recorded in 13.9% of the flat-faced dogs and 3.6% of the others (Gruenheid and colleagues, 2018).
Greyhounds need an anesthetic plan of their own, since they clear some of the drugs more slowly, lose heat fast and can bleed a day or two after surgery. Our guide to dental care for Greyhounds lists what to ask the vet before the dental.
Heart disease worries vets too, and it's a common reason dogs get sent to a specialist for their anesthetic. At one US veterinary teaching hospital, 100 dogs with heart disease serious enough to need a specialist went through routine dental procedures next to 100 dogs without it (Carter and colleagues, 2017). No dog died in either group, and complications were no more common in the heart patients. They had trained anesthesia staff and close monitoring.
What blood tests before anesthesia tell your vet
AAHA's advice is to check kidney and liver function with blood and urine tests, since those organs clear the drugs. Some dogs also need a chest x-ray or a heart scan. Results that are off can change the drugs, the fluids or the date.
How much the tests add depends a lot on the dog. In 1,537 dogs at a German university clinic, the history and exam suggested tests weren't needed in 1,293 of them (Alef and colleagues, 2008). For those dogs the results would have changed the anesthetic plan in 2 cases and postponed surgery in 10. Older dogs are a different story. In 101 dogs over 7, screening found 30 new problems, most often cancer, chronic kidney disease and Cushing's disease, and 13 of those dogs didn't have the anesthetic (Joubert, 2007).
So the tests earn their place most in a middle-aged or older dog, though we wouldn't skip them in a young one. Ask what each result showed and whether it changed the plan.
What lowers the risk on the day
Most of AAHA's precautions are things you can see at drop-off or ask about.
- An exam on the morning, to catch anything new since the last visit
- An IV line, so fluids and emergency drugs can go straight in
- A breathing tube, which delivers oxygen and gas and keeps water out of the lungs
- One trained person whose job is watching your dog, tracking heart rate and rhythm, oxygen, blood pressure, temperature, breathing and exhaled carbon dioxide
- Someone with your dog in recovery until its vital signs are back to normal
Recovery is the step owners think about least. In the older UK study, 47% of the anesthetic deaths in dogs came after the procedure was over, during recovery (Brodbelt and colleagues, 2008). The tube coming out and a sleepy dog going back to a kennel isn't the end of the risky part. It matters most for flat-faced dogs, with their higher rate of problems in recovery.
Nerve blocks also help. They numb the mouth, so less general anesthetic is needed to keep your dog comfortable.
In the dental clinic study, the dogs that died had been under longer, a median of about 3 hours against 2 hours 20 minutes, though age explained that link once both were weighed together. Ask these when you book.
- Who stays with my dog while it wakes up, and until when?
- What will you do differently because of my dog's age, breed or health?
- If you find more than expected, will you finish today or book a second session?
Why putting it off doesn't make it safer
AAHA's own wording is that "the risks associated with untreated dental disease are typically much greater than the minimal risks associated with anesthesia for dental care." Gum disease left alone means a sore mouth and, in time, teeth that have to come out.
Waiting also works against you on the one risk factor that only goes up. A dental at 6 carries less anesthetic risk than the same dental at 11, and older mouths tend to need more work. At one Seoul hospital, dogs aged 10 to 16 that needed extractions had 8.4 teeth out on average, against 3.5 for dogs aged 2 to 6 (Han and colleagues, 2025). AAHA recommends the first full cleaning, with x-rays, by age 1 in small and medium dogs and by 2 in large breeds.
Scraping the teeth on an awake dog isn't a way round the anesthetic. It can't reach below the gum line and comes with no x-rays, and our guide to anesthesia-free dental cleaning for dogs shows what a 2026 study found in dogs soon after one. Home care, brushing above all, helps reduce new plaque and tartar. It doesn't remove tartar that has hardened, and nothing at home reaches below the gum line.
When to talk to your vet first
Book a consultation before the dental, not just a drop-off slot, if your dog
- is 9 or older
- has heart, kidney, liver or breathing problems, or a cough
- is a flat-faced breed such as a Pug, French Bulldog or Bulldog
- is on any regular medication (ask whether to give it on the morning)
- has had a bad reaction to an anesthetic before
Some signs mean a vet visit soon. These include a swollen face or jaw, a loose or broken tooth, bleeding gums, dropping food or chewing on one side, and a dog that stops eating. Those need a vet whatever you decide about the anesthetic.
Questions owners ask
How many dogs die from anesthesia?
About 10 in 10,000 within 48 hours in UK general practice, counting every kind of procedure. The risk is lower for healthy dogs on a planned day and higher for older, sick or emergency patients.
Which dog breeds don't do well with anesthesia?
Flat-faced breeds such as Pugs, Bulldogs and French Bulldogs have more problems in recovery. In a US study of 229 English Bulldogs, most deaths came after the procedure, and breathing trouble caused 87.5% of them (Oda and colleagues, 2022). In the UK study, Rottweilers and West Highland White Terriers also had higher odds. Your vet can plan around a breed and watch the recovery more closely.
Is my dog too old for anesthesia for a dental cleaning?
Age raises the risk, but AAHA is clear that age alone isn't a reason to refuse needed treatment. An older dog needs blood and urine tests, a plan built around its health and careful monitoring through recovery. Ask your vet what they'd change for your dog.
Is sedation enough instead of general anesthesia?
Not for a proper cleaning. AAHA's standard is general anesthesia with a breathing tube for every dental cleaning. Sedation leaves the airway unprotected from the water and debris scaling produces.
References
- Shoop-Worrall SJW, O'Neill DG, Viscasillas J, Brodbelt DC. Mortality related to general anaesthesia and sedation in dogs under UK primary veterinary care. Vet Anaesth Analg. 2022;49(5):433-442. doi:10.1016/j.vaa.2022.03.006.
- Spaar Weiss MR, Hutt JP, Stewart SD, Volker MK. Risk factors associated with increased mortality within 14 days of general anesthesia in specialty veterinary dentistry and oral surgery practices. Vet Anaesth Analg. 2025;52(4):396-402. doi:10.1016/j.vaa.2025.04.004.
- Brodbelt DC, Blissitt KJ, Hammond RA, et al. The risk of death: the confidential enquiry into perioperative small animal fatalities. Vet Anaesth Analg. 2008;35(5):365-373. doi:10.1111/j.1467-2995.2008.00397.x.
- Brodbelt DC, Pfeiffer DU, Young LE, Wood JL. Results of the confidential enquiry into perioperative small animal fatalities regarding risk factors for anesthetic-related death in dogs. J Am Vet Med Assoc. 2008;233(7):1096-1104. doi:10.2460/javma.233.7.1096.
- Gruenheid M, Aarnes TK, McLoughlin MA, et al. Risk of anesthesia-related complications in brachycephalic dogs. J Am Vet Med Assoc. 2018;253(3):301-306. doi:10.2460/javma.253.3.301.
- Oda A, Wang WH, Hampton AK, Robertson JB, Posner LP. Perianesthetic mortality in English Bulldogs: a retrospective analysis in 2010-2017. BMC Vet Res. 2022;18(1):198. doi:10.1186/s12917-022-03301-9.
- Carter JE, Motsinger-Reif AA, Krug WV, Keene BW. The effect of heart disease on anesthetic complications during routine dental procedures in dogs. J Am Anim Hosp Assoc. 2017;53(4):206-213. doi:10.5326/JAAHA-MS-6512.
- Alef M, von Praun F, Oechtering G. Is routine pre-anaesthetic haematological and biochemical screening justified in dogs? Vet Anaesth Analg. 2008;35(2):132-140. doi:10.1111/j.1467-2995.2007.00364.x.
- Joubert KE. Pre-anaesthetic screening of geriatric dogs. J S Afr Vet Assoc. 2007;78(1):31-35. doi:10.4102/jsava.v78i1.283.
- Han K, Piao Z, Park C, Rahman MM, Kim N. Prevalence, current status, and prevention of dental extractions in dogs: a retrospective study. Vet Med (Praha). 2025;70(1):1-10. doi:10.17221/40/2024-VETMED.
- Bellows J, Berg ML, Dennis S, et al. 2019 AAHA dental care guidelines for dogs and cats. J Am Anim Hosp Assoc. 2019;55(2):49-69. doi:10.5326/JAAHA-MS-6933.
- American Animal Hospital Association. Do pets need anesthesia for dental care? 2019. https://www.aaha.org/resources/anesthesia-and-dental-cleaning/