Advanced: Equine Dentistry

Table of Contents

Source Code Legend

• END-PD: Endodontic and Periodontal Disease in the Equine Patient slide deck, Molly Rice, DVM, DAVDC-EQ, Midwest Veterinary Dental Services, 6/8/26.
• ICE: Incisor and Canine Extractions slide deck, Molly Rice, DVM, DAVDC-EQ, Midwest Veterinary Dental Services, 6/8/26.
• OEC: Oral Examination and Record Keeping in the Equine Patient. Molly Rice, DVM, DAVDC-EQ.
• DRH: Obtaining Diagnostic Radiographs of the Equine Head. Molly Rice, DVM, DAVDC-EQ.

1. Tooth Vitality and Fracture Classification

Advanced equine dentistry often turns on one deceptively simple question: is the tooth vital or non-vital? Dr. Rice frames this as the fundamental question when working up endodontic disease. The answer guides whether monitoring, vital pulp therapy, extraction, or referral is appropriate, but it is not always obvious from oral examination alone. [END-PD]

Fracture terminology follows small-animal and human principles but must be interpreted in a hypsodont context. A complicated fracture involves pulp exposure; an uncomplicated fracture does not. A fracture extending below the gingival margin is considered a crown-root fracture, while recognizing that in hypsodont teeth the unerupted portion is technically reserve crown until extreme age. [END-PD, OEC]

When a fractured tooth is identified, the clinical question becomes whether the fracture is likely significant. Visible pulp exposure, feed packed into a pulp horn, apical change, periodontal involvement, or soft-tissue trauma increases concern. If significance is unclear, radiographs are indicated. [END-PD, OEC]

2. Monitoring, Imaging, and Extraction Decisions

Radiographs are central to decision-making. Dr. Rice’s endodontic workflow emphasizes imaging the affected tooth and obtaining comparison views of the opposite side. A palatal-root view is especially important for maxillary cheek teeth when palatal-root or apical disease is suspected. [END-PD, DRH]

Extraction is appropriate when disease, mobility, pain, non-vitality, fracture configuration, or secondary soft-tissue injury makes tooth preservation unlikely or unsafe. Techniques range from simple extraction steps — gingival elevation, luxation, spreading, and delivery — to advanced techniques such as partial coronectomy, minimally invasive buccotomy, lateral alveolectomy, tooth sectioning, or Steinmann pin surgical extraction. [END-PD]

3. Periodontal Disease Staging and Treatment Planning

Periodontal evaluation should record diastema location, diastema type, pocket depth, tooth mobility, and attachment loss. Attachment loss requires radiographs; oral examination alone cannot reliably stage the disease. [END-PD, OEC]

Dr. Rice uses the standard staging logic: stage 0 is normal; stage 1 has no attachment loss; stage 2 has less than 25% attachment loss; stage 3 has 25–50% attachment loss; and stage 4 has greater than 50% attachment loss. Treatment planning depends on stage, mobility, radiographic bone loss, and clinical signs such as quidding or weight loss. [END-PD]

First-line therapy begins with occlusal adjustment and cleaning pockets for evaluation. More advanced options include periodontal debridement with or without packing, occlusal relief cuts, and diastema widening. Dr. Rice’s practical boundary for general practice is clear: first evaluation, float/occlusal adjustment, dietary changes when needed, and recheck in 3–6 months; if there is no improvement, consider referral. [END-PD]

For the general practitioner, the advanced decision is often knowing when not to continue locally. Progressive mobility, persistent deep pockets, radiographic attachment loss, failure to improve after occlusal adjustment and diet changes, or the need for advanced diastema procedures should lower the threshold for referral. The notes should preserve this staged approach: first stabilize comfort and function, then reassess response rather than assuming one procedure resolves chronic periodontal disease. [END-PD]

4. Incisor and Canine Pathology

Incisor and canine pathology is often diagnosed through oral examination and radiography. Key findings include pulp exposure, tooth fracture, tooth mobility, tooth resorption, dental abrasions, and radiographic abnormalities. Traumatic injuries are most common in young horses and should be classified as acute versus chronic, tooth versus bone fracture, and vital versus non-vital tooth status. [ICE]

Equine odontoclastic tooth resorption and hypercementosis generally occurs in horses older than 15 years and is a radiographic diagnosis. Treatment planning involves staging the lesions; stage 3 and higher lesions are generally recommended for extraction because the pulp is involved. [ICE]

When acute pulp exposure has a normal radiograph and the goal is to preserve the tooth, vital pulp therapy may be recommended. Dr. Rice’s protocol includes removal of approximately 5 mm of pulp, pulp dressing with calcium hydroxide or MTA, an intermediate glass-ionomer layer, and final restoration with dental composite. Follow-up every 6 months for 18–24 months is used to determine tooth vitality. [ICE]

5. Extraction Preparation, Technique, and Follow-Up

Patient preparation for incisor and canine extraction includes sedation, proper restraint, regional anesthesia, local anesthesia, and a complete oral exam. Dr. Rice specifically notes that cheek teeth should be addressed before removing all incisors when indicated. [ICE]

Anesthesia and instrumentation

Regional anesthesia and instrumentation matter. The maxillary nerve block may use an extra-periorbital fat body injection technique. Alternatives include periodontal injection syringes, extended wolf-tooth nerve block syringes, and human dental cartridges/needles. Incisor extraction instrumentation includes a basic surgery pack, luxators, elevators, incisor spreader, incisor forceps, rongeurs, and 2-0 Monocryl. [ICE]

Closure and aftercare

Closure decisions depend on available oral mucosa and tension. Dr. Rice notes that incisor sites almost always dehisce, so closure should minimize tension and use appropriate suture selection. Post-operative instructions include softened diet for 1–2 weeks, antimicrobials for 7–10 days, anti-inflammatories for 3–5 days, and recheck in 4–6 weeks. For canine extractions, no riding with a bridle for 4 weeks is added. [ICE]

Canine-specific surgical considerations

Canine extraction is more surgical. The standard approach is a mucogingival flap; a dental unit and high-speed handpiece are preferred, though osteotomes, rongeurs, or Dremel tools with copious water irrigation may be used. The flap sequence includes sulcular incision, flap incision, and elevation with periosteal elevators. Delivery may be facilitated by gentle forceps rotation. Alveoloplasty with a high-speed drill and diamond bur, rongeurs, or curettes helps prepare the site; thinning the flap before closure reduces tension and dehiscence risk. [ICE]

6. Key Clinical Takeaways

• Ask whether the tooth is vital or non-vital before choosing treatment. [END-PD]
• Cheek-tooth vitality assessment is complex because pulp horns and canals segment with age. [END-PD]
• Monitor only when significant inflammatory radiographic changes are absent and recheck is feasible. [END-PD]
• Periodontal disease staging depends on radiographic attachment loss, not oral appearance alone. [END-PD]
• Stage 3+ incisor resorption lesions are generally extraction candidates because pulp is involved. [ICE]
• Acute traumatic pulp exposure should be evaluated urgently, ideally within 24–48 hours. [ICE]
• Canine extraction closure should minimize flap tension; no bridle use for 4 weeks after surgery. [ICE]
• Post-operative instructions should be explicit: softened diet, antimicrobials, anti-inflammatories, and a 4–6 week recheck. [ICE]
• Advanced cheek-tooth extraction options should be selected according to tooth status, access, surgeon experience, and referral threshold. [END-PD]

Source References

All clinical content in these notes is derived from the presenter files listed in the Source Code Legend. These notes are a learning aid and do not replace the full lecture, patient-specific judgment, radiographic interpretation, or referral for advanced dental disease.

Version History

• v1: Initial presenter-source locked printable notes for Event 45, Advanced: Equine Dentistry. No post-lecture update boxes were added in this pass because the event is upcoming and the available sources are presenter-prepared pre-lecture materials.