When the Owner Wants 'Just a Cleaning' in a Dog With a Mobile Canine and a Murmur

Acknowledge the owner's goal (a comfortable dog, no unnecessary pain) and then reframe what pain actually looks like in this mouth.

• A visible pulp exposure on tooth 108 is an open door to infection and a direct source of pain. Dogs with chronic dental pain often keep eating; the signs are subtle, such as dropping food, chewing on one side, pawing, or reduced grooming. The owner's own observations already point in that direction.
• Grade 2 mobility of tooth 404 means the attachment is significantly lost. That tooth cannot be saved by scaling. Leaving it in place leaves a painful, mobile tooth and a reservoir of bacteria next to bone.
• Most dental pathology is below the gumline. Without full-mouth intraoral radiographs under anesthesia, we cannot see root resorption, retained roots, bone loss, or tooth fractures, and we cannot safely plan extractions. A "cleaning only" on this mouth removes visible calculus but leaves the disease and discomfort behind.
• Anesthesia-free dental scaling is not an acceptable substitute. It does not address subgingival disease, it can dislodge bacteria into the bloodstream, and it is often aversive.
• Pre-anesthetic bloodwork is not optional here. Cooper has known mitral valve disease and is on pimobendan, so baseline renal and hepatic values and electrolytes matter for drug selection and fluid planning.

The right framing is a written treatment plan and estimate with the options laid out, an explanation of why the extractions are the humane choice, and clear documentation if the owner declines. Do not proceed with a partial treatment that creates the impression the disease has been treated.

Cardiac concerns: mitral valve disease with a loud murmur means the heart is working against a regurgitant load. The goals are to avoid tachycardia and increased myocardial oxygen demand, avoid vasodilation and hypotension, and avoid volume overload from overzealous fluid administration. The gallop rhythm noted earlier on Mochi's exam is not part of this case, but a gallop in Cooper would be reported to the veterinarian the same way.

Plan elements:

• Continue pimobendan as scheduled; give the morning dose with a small amount of food unless told otherwise.
• Premedication: opioid-based (for example methadone or buprenorphine), with an optional low-dose benzodiazepine. Avoid acepromazine because of vasodilation and hypotension. Avoid high-dose alpha-2 agonists, which raise afterload and cause bradycardia.
• Induction: alfaxalone or propofol titrated slowly to effect, with preoxygenation, then endotracheal intubation. Avoid ketamine, which tends to increase heart rate and myocardial work.
• Maintenance: isoflurane or sevoflurane in oxygen, adjusted to effect, at the lowest concentration that maintains an appropriate plane.
• Fluids: conservative rates (roughly 3 to 5 mL/kg/hr) with frequent reassessment; watch respiratory rate and lung sounds for pulmonary edema.
• Monitoring: ECG continuously, blood pressure every 5 minutes, SpO2, capnography, temperature, and auscultation between phases of the procedure.
• Positioning: avoid excessive head-down tilt and avoid pressure on the thorax. Keep the procedure efficient, because duration is a risk factor.
• Emergency readiness: a crash cart, atropine and glycopyrrolate, and a plan for bradycardia or hypotension before induction begins.

Set up the room before the patient is induced: anesthesia machine checked, scavenging confirmed, monitoring attached and tested, and a written drug sheet with doses already calculated for 8.2 kg.

Charting and imaging: document every tooth individually, including probing depths, gingival recession, furcation involvement, mobility grade, fractures, and calculus scores; mark the fractured 108 and the mobile 404 explicitly. Take full-mouth intraoral radiographs including the caudal maxilla and mandible, then radiograph each extraction site after extraction to confirm no retained root fragments.

Local anesthesia: use nerve blocks to reduce intraoperative anesthetic depth and provide preemptive analgesia.

• Maxillary region: a maxillary nerve block (or infraorbital approach) for 108 and the maxillary fourth premolars.
• Mandibular region: an inferior alveolar (mandibular) nerve block for 404. Warn the owner and the team about transient lower lip numbness and the small risk of hemorrhage or needle trauma; aspirate before injecting.
• Dose ceiling: bupivacaine maximum is approximately 2 mg/kg, which for an 8.2 kg dog is about 16.4 mg. At 0.5% (5 mg/mL) that is roughly 3.2 mL total across all blocks, so split the volume between sites rather than giving 3 mL to one side and more to the other.

Postoperative analgesia:

• An opioid (buprenorphine or methadone) for the immediate postoperative period.
• An NSAID only with the veterinarian's approval, after confirming renal and hepatic values are acceptable and that the patient is well hydrated; the cardiac medications do not replace that assessment.
• Gabapentin as an at-home adjunct for oral pain if prescribed.
• Soft food for 7 to 14 days, no chew toys or hard treats, no brushing over extraction sites, and clear instructions to call for bleeding, swelling, reluctance to eat, or a change in breathing.
• A recheck examination in about 2 weeks, plus a home dental care plan once the mouth has healed.