Geriatric Yorkie, Mobile Canine Tooth and a Request for Anesthesia-Free Dentistry
Bella is an 11-year-old spayed female Yorkshire Terrier, 3.8 kg, BCS 6/9, presented for halitosis and dropping food. She has a grade 3/6 left apical systolic murmur, a collapsing episode four months ago, and has not eaten since 22:00 last night because the owner expected a dental procedure today. Conscious oral exam: severe gingival recession with grade 2 mobility of the right mandibular canine, furcation exposure on both mandibular first molars, and a slab fracture of the right maxillary fourth premolar with a visible pink pulp exposure. The owner says, 'Can you just pull the loose tooth without putting her under? She is old and I cannot afford x-rays.' Pre-anesthetic bloodwork from eight months ago was unremarkable. The practice has a dental unit, digital dental radiography and isoflurane anesthesia. The veterinarian asks you to help explain the plan and prepare an estimate.
1. How do you respond to the request for a conscious extraction, and why?
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I would be direct: we cannot safely remove that tooth in a conscious dog, and doing so would not meet the standard of care.
Pain. Extracting a mobile canine in a dog with grade 3/6 periodontal disease usually requires elevation, possibly a surgical flap and bone removal. It cannot be done humanely without general anesthesia and local blocks.
Technical risk. Without anesthesia and radiographs I cannot see root number, shape, ankylosis or resorption. A retained root tip, a fractured mandible at the canine site, an oronasal fistula from the carnassial, or uncontrolled hemorrhage are all realistic outcomes in a 3.8 kg dog.
Missed disease. The fractured fourth premolar has pulp exposure, which means endodontic disease and pain even if it looks quiet. Radiographs decide whether that tooth needs extraction or referral for root canal therapy.
Framing for the owner. I would say: the anesthetic is not the risk we are avoiding - untreated dental pain and infection are, and we can lower anesthetic risk with testing and a tailored protocol. Offer a written estimate with options rather than a refusal, and document the conversation in the record.
2. What pre-anesthetic workup and anesthetic considerations does this dog need before dentistry?
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Workup. The murmur plus a collapsing episode justifies more than bloodwork: echocardiogram (ideally with a cardiologist), thoracic radiographs, blood pressure, and current CBC, chemistry and urinalysis. The echo determines whether this is myxomatous mitral valve disease with remodeling or something else, and it changes fluid and drug choices. If the echo is not immediately available, that is a reason to reschedule, not to proceed blind.
Classification and plan. She is at least ASA III. Premedicate with an opioid (for example methadone or hydromorphone) plus a benzodiazepine or low-dose alpha-2 agonist chosen by the veterinarian; avoid drugs that cause marked vasodilation if the echo shows significant disease. Preoxygenate, induce to effect with propofol or alfaxalone rather than a fixed high dose, intubate, and maintain on isoflurane in oxygen with a dedicated anesthesia nurse.
Intraoperative. IV fluids at a conservative rate, active warming (she is small and will cool fast), ECG, SpO2, capnography, blood pressure every 5 minutes.
Antibiotics. Not routine for dentistry; reserve prophylaxis for specific cardiac or immunocompromise indications per current guidance, and discuss with the veterinarian rather than assuming.
3. Outline the sequence of the dental procedure and the post-operative and client-communication plan.
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Sequence. Pre-operative exam and current bloodwork; IV catheter; premedication and preoxygenation; induction and intubation with a cuffed tube plus pharyngeal packing; full-mouth dental radiographs before any extraction; periodontal charting; regional blocks (mandibular and maxillary) with bupivacaine before extraction; scale and polish supragingivally and subgingivally; extract the right mandibular canine and the nonvital carnassial, or discuss referral for endodontics on the carnassial; close any flap; final radiograph to confirm no retained roots; recovery with warming and monitoring.
Aftercare. Multimodal analgesia - an NSAID if renal values and blood pressure allow, plus an opioid - and soft food for 10-14 days. Warn about bleeding, swelling and reluctance to eat, and give a recheck appointment for 10-14 days.
Estimate and consent. Itemize: anesthesia and monitoring, radiographs, scaling, each extraction, medications, recheck. Offer staged options if cost is the barrier, and record the owner's choice in writing. Emphasize that untreated periodontal disease shortens life and that the fractured tooth is painful now, not cosmetic.