Behavioral Signs Associated With Equine Periapical Infection in Cheek Teeth.
Authors: Pehkonen Jaana, Karma Leena, Raekallio Marja
Journal: Journal of equine veterinary science
Summary
Periapical infection in equine cheek teeth commonly triggers behavioural changes that owners may not readily attribute to dental pain, yet the specific signs associated with this condition have not been systematically documented until now. Pehkonen and colleagues surveyed 47 horse owners whose animals had undergone cheek tooth extraction for periapical infection, using a 23-question questionnaire to capture changes in eating, bitting, and general behaviour before and after surgery. The study revealed statistically significant reductions across all behavioural categories following tooth removal (P < 0.001), with avoidance behaviours (bit evasion, eating difficulties, and asocial or aggressive responses) being the most commonly reported pre-operative signs. Notably, half of the infected teeth were identified only during routine dental examination rather than through owner-initiated investigation, suggesting that many practitioners encounter horses exhibiting pain-related behaviours without the owner recognising the underlying dental cause. For equine professionals, these findings underscore the critical importance of educating owners about the behavioural manifestations of dental disease and reinforces that regular oral examinations remain essential—not merely for identifying obvious dental pathology, but for recognising and preventing the welfare and performance issues that may stem from subclinical or early-stage periapical infection.
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Practical Takeaways
- •Train horse owners to recognize behavioral red flags associated with dental pain: bit evasion, quidding, difficulty eating, and unexplained behavioral changes that may resolve after dental treatment
- •Recommend routine dental examinations as essential preventive care, as many owners do not spontaneously recognize dental pain signs and delay diagnosis
- •Consider periapical infection and dental pathology in differential diagnosis for horses presenting with behavior problems, resistance to the bit, or eating difficulties before attributing these to training or temperament issues
Key Findings
- •Before tooth extraction, horses with periapical infection commonly exhibited avoidance behaviors including bit evasion, eating difficulties, and asocial/aggressive behaviors
- •Removal of infected cheek teeth significantly reduced behavioral signs (P < 0.001 for each behavior category)
- •Half of periapical infections were diagnosed during routine dental examination rather than on owner complaint, suggesting owners frequently fail to recognize dental pain signs
- •Many undesirable behavioral patterns in horses may be associated with underlying dental pain rather than training or behavioral issues