Veterinary Dentistry Core

Course Information

Course Description

Oral disease is among the most common findings in small animal practice, yet the dental case is frequently the one general practitioners feel least prepared to evaluate systematically. A complete oral examination is often abbreviated, charting is inconsistent, periodontal staging language varies from clinician to clinician, and the decision to refer is made late or not at all. This four-hour program, presented by Dr. Brenda L. Mulherin, DVM, Diplomate AVDC, Clinical Professor of Dentistry and Oral Surgery at Iowa State University, treats dentistry as a structured clinical discipline built on examination quality, accurate documentation, and sound case selection. These notes cover four core areas:

• Oral Examination in Dogs and Cats: A repeatable approach to the conscious and anesthetized oral examination, what to inspect and record before, during, and after the dental procedure, and how exam findings drive the dental chart and client communication.
• Common Conditions in the Oral Cavity: Recognition and differential diagnosis of the abnormalities most often encountered in dogs and cats, separating benign incidental findings from those that demand further workup.
• Periodontal Disease: The clinical information needed to recognize, stage, and document periodontal disease consistently—probing depth, attachment loss, mobility, furcation, and the role of dental radiography.
• Referral Decisions in Veterinary Dentistry: The case factors that increase complexity or risk, the situations that warrant referral before treatment begins, and how to prepare a useful referral and set owner expectations.

Oral Examination in Dogs and Cats

Presenter: Dr. Brenda L. Mulherin, DVM, Diplomate AVDC

The oral examination is the foundation on which every dental decision rests, and its value comes from being performed the same way every time. A repeatable sequence prevents the most common failure in general practice—an examination that drifts to the obvious lesion and overlooks everything else. The examination has two distinct phases: the conscious (awake) examination performed during the routine physical, and the far more complete anesthetized examination performed at the time of the dental procedure. The conscious examination is necessarily limited; a cooperative dog or cat will allow inspection of the face, lips, and the buccal surfaces of the teeth, but the lingual and palatal surfaces, the caudal oral cavity, and any probing are simply not obtainable in the awake patient. Its purpose is to detect gross abnormality—facial swelling or asymmetry, fractured or discolored teeth, gingival recession, masses, halitosis, or evidence of pain—and to decide whether a complete anesthetized examination is warranted.

A Consistent Examination Sequence

The anesthetized examination should follow a fixed order so that nothing is missed. Begin with an extraoral assessment: palpate the muscles of mastication, the mandible and maxilla, the temporomandibular joints, and the regional lymph nodes, and assess facial symmetry. Move to the soft tissues—lips, mucosa, gingiva, hard and soft palate, tongue and sublingual region, tonsils, and the caudal oral cavity—noting color, texture, swelling, ulceration, and masses. Then examine the teeth in a fixed pattern (for example, maxillary right to left, then mandibular left to right) so every tooth is evaluated and charted. Each tooth is assessed for mobility, fractures, discoloration, wear, resorptive lesions, missing or supernumerary teeth, and periodontal status. A periodontal probe and explorer are used on every tooth at multiple points around the circumference, and findings are recorded on the dental chart as they are discovered, not from memory afterward.

Charting, Imaging, and Documentation

Documentation is what converts an examination into actionable information. The dental chart records probing depths, gingival recession, attachment loss, furcation involvement, mobility, missing teeth, fractures, and resorptive lesions using standardized notation, so that any member of the care team can read the patient's oral status and so that progression can be tracked across visits. Full-mouth dental radiography is an integral part of the complete examination rather than an optional add-on: a large proportion of clinically significant pathology—tooth resorption, retained roots, periapical lucency, bone loss, and unerupted teeth—is invisible on the crown alone and is detected only radiographically. Findings that cannot be fully characterized by probe and radiograph, or that suggest neoplasia or significant bony involvement, are flagged for additional imaging or biopsy.

Before, During, and After the Procedure

Framing the examination around the anesthetic event keeps it complete. Before anesthesia, the conscious findings and the patient's systemic status guide the anesthetic plan and the conversation with the owner about likely findings and costs. During the procedure, the full charted examination, radiographs, and probing establish the definitive problem list on which treatment is based. After, the chart and images support the discharge conversation, the home-care plan, and the recommended recheck interval. An examination that is documented in this way is reproducible, defensible, and directly useful to the next clinician who opens the record.

Common Conditions in the Oral Cavity

Presenter: Dr. Brenda L. Mulherin, DVM, Diplomate AVDC

A complete examination produces a list of findings, and the clinician's next task is to recognize what those findings represent and what each one requires. Most oral abnormalities in dogs and cats fall into a recognizable set of patterns, and the practical skill is separating findings that can be monitored from those that demand a diagnostic next step. Recognition begins with knowing the common conditions and their typical signalment, distribution, and behavior, so that an unexpected pattern stands out as something requiring workup.

Dental and Periodontal Findings

Fractured teeth are common, and the distinction that matters clinically is whether the pulp is exposed: a complicated crown fracture exposes the pulp, causes pain, and leads to pulp necrosis and periapical disease, requiring extraction or endodontic therapy rather than monitoring. Tooth resorption—especially common in cats—is a progressive loss of dental hard tissue that is frequently painful and often radiographically more extensive than the crown suggests; its identification changes the treatment plan toward extraction or crown amputation depending on the radiographic type. Discolored teeth may indicate pulp death and warrant radiographic assessment, and persistent deciduous teeth in young animals create crowding and a periodontal trap that justifies early intervention.

Soft-Tissue and Inflammatory Conditions

Gingivitis is reversible inflammation confined to the gingiva and is the earliest, treatable stage of periodontal disease. Feline chronic gingivostomatitis is a distinct, severe immune-mediated inflammatory disease in which the inflammation extends well beyond the gingiva into the caudal oral mucosa; it is intensely painful, often responds poorly to medical management alone, and frequently requires full-mouth or partial-mouth extractions and specialist involvement. Eosinophilic and contact lesions, ulcers, and mucosal masses round out the soft-tissue findings the practitioner must distinguish, since their management ranges from supportive care to biopsy.

When Monitoring Is Not Enough

The recurring decision is whether a finding can be observed or must be investigated. Any oral mass warrants biopsy and staging rather than a wait-and-see approach, because the prognosis for oral neoplasia depends heavily on early diagnosis and because clinically benign-appearing lesions are not reliably benign. A painful condition—an exposed pulp, a resorptive lesion, or severe stomatitis—is not a candidate for monitoring, because untreated oral pain is a welfare problem and the underlying disease progresses. Choosing a practical next step—radiograph, biopsy, cytology, or referral—rather than deferring it is the habit that separates a finding that is recorded from one that is actually addressed.

Periodontal Disease

Presenter: Dr. Brenda L. Mulherin, DVM, Diplomate AVDC

Periodontal disease is the most common disease in adult dogs and cats, and assessing it well is the highest-yield dental skill a general practitioner can develop. It is a progression from reversible inflammation of the gingiva to irreversible destruction of the tooth's supporting structures—gingiva, periodontal ligament, cementum, and alveolar bone. The clinical task is to recognize where on that spectrum each tooth sits, to stage it consistently, and to document it in language the whole care team can act on.

The Clinical Signs and Measurements

Staging rests on a small set of objective measurements taken on every tooth. Probing depth measures the sulcus or pocket from the gingival margin to its base; increased depth signals pocket formation. Attachment loss—the position of the attachment relative to the cementoenamel junction, accounting for any gingival recession—is the truest measure of periodontal destruction, because recession can mask a deep pocket and a normal-looking margin can sit over significant loss. Gingival recession, furcation involvement in multirooted teeth, and mobility each add information about the extent of support that has been lost. Crucially, dental radiographs are required to assess alveolar bone loss, the structural correlate of clinical attachment loss, and clinical and radiographic findings together—not either alone—determine the stage.

Using Staging Language Consistently

Stage is assigned per tooth, not per mouth, because a single patient routinely carries teeth at several stages, and the treatment plan follows the worst-affected teeth tooth by tooth. Consistent use of the PD 0–4 framework lets one clinician's chart be acted on by another and lets progression or response to treatment be measured against an earlier baseline. Probing depth interpretation is also species- and tooth-dependent—what counts as an abnormal pocket differs between the cat, the small dog, and the large dog—so depth is always interpreted against the expected normal for that tooth rather than a single universal cutoff.

Documenting Severity the Team Can Act On

Documentation closes the loop. A useful periodontal record states, for each affected tooth, the probing depths at multiple sites, the recession and attachment loss, the furcation grade and mobility, the radiographic bone level, and the resulting stage and planned intervention—scaling and root planing, periodontal surgery, guided tissue regeneration, or extraction. Recording severity in this structured way makes the recommendation defensible, supports the home-care and recheck plan, and gives the next visit a baseline against which improvement or deterioration can be judged. Periodontal disease is preventable and, in its early stages, reversible, which makes accurate staging not merely a documentation exercise but the lever for earlier, less invasive intervention.

Referral Decisions in Veterinary Dentistry

Presenter: Dr. Brenda L. Mulherin, DVM, Diplomate AVDC

Much of small animal dentistry can and should be performed in general practice, but a defined subset of cases is better served by referral to a board-certified veterinary dentist or oral surgeon. The skill is recognizing those cases before treatment begins—ideally at the examination, not midway through an extraction—so that the patient is not committed to a procedure beyond the team's equipment, training, or anesthetic capability. The decision turns on case complexity, anticipated risk, and the resources the case demands.

Case Factors That Increase Complexity or Risk

Several features should raise the question of referral. Oral masses requiring staging and oncologic surgery, maxillofacial fractures, and complicated or surgical extractions—multirooted teeth with significant bone loss, ankylosed or resorbing roots, or canine and carnassial teeth in which root fracture risk is high—all increase difficulty. Endodontic therapy to save a strategically or functionally important tooth, orthodontic problems causing traumatic malocclusion, feline chronic gingivostomatitis refractory to extractions, and patients with significant anesthetic risk are common referral triggers. Limited dental radiography, absent surgical instrumentation, or constrained anesthetic monitoring are practice-side factors that argue for referral independent of the lesion itself.

Preparing a Useful Referral

A referral is only as good as the information that accompanies it. The receiving specialist needs the history, the dental chart, full-mouth radiographs, any biopsy or cytology results, the anesthetic record and relevant bloodwork, and a clear statement of the specific question being asked. Sending the diagnostic workup with the patient avoids duplicating anesthesia and imaging, shortens the time to definitive treatment, and signals a colleague-to-colleague handoff rather than an unprepared transfer. Equally, referring before attempting and abandoning a procedure preserves tissue, anesthetic time, and owner trust.

Setting Expectations With Owners

Framing referral as the appropriate standard of care—not as a failure—is central to a smooth handoff. Owners should understand why the case exceeds what can be safely done in the general practice setting, what the specialist will likely do, the approximate cost and timeline, and that the referring clinician remains part of the care team. Recommending referral for the cases that warrant it, and confidently managing the ones that do not, is the disposition skill this course is built to develop: it keeps patients safe, sets realistic owner expectations, and builds the referral relationships that make the next difficult case easier to handle.

Summary

Sound small animal dentistry rests on four habits: examine every patient the same complete way under anesthesia and chart what you find; recognize the common oral conditions and act on the painful and the neoplastic rather than monitoring them; stage periodontal disease per tooth using probing, attachment loss, mobility, furcation, and radiographs together; and decide early which cases belong in general practice and which warrant referral. Applied consistently, this framework turns the dental visit from an abbreviated cleaning into a documented diagnostic encounter that protects the patient, informs the owner, and supports the rest of the care team.