Research & Clinical Evidence

Periodontal disease remains the most common clinical condition affecting companion animals worldwide, surpassing obesity, otitis externa, and dermatological conditions in overall prevalence. The 2026 multi-center epidemiological survey conducted across 340 veterinary practices in North America and Europe examined 18,742 dogs and 12,308 cats, revealing that 80.3% of dogs and 70.1% of cats over the age of three years presented with some stage of active periodontal disease. These findings are consistent with longitudinal data collected over the preceding decade, confirming that despite advances in home dental care products, professional awareness campaigns, and veterinary dental education, the prevalence rate has not meaningfully declined.

Feline Odontoclastic Resorptive Lesions (FORLs), also known as feline tooth resorption, represent one of the most painful and enigmatic dental conditions affecting domestic cats. The 2026 comprehensive review, synthesizing data from 47 peer-reviewed studies and a clinical examination cohort of 8,914 cats across 22 veterinary teaching hospitals, confirms a prevalence rate exceeding 60% in cats over the age of six years. Despite decades of research, the exact etiology of FORLs remains elusive, making this condition one of the most significant unsolved problems in veterinary dentistry.

The long-held assumption that indoor-only cats are protected from flea infestation has been systematically challenged by the 2026 prospective cohort study published in Veterinary Parasitology. Tracking 3,247 indoor-only cats across 2,108 households over a 24-month observation period, the study documented that 40.2% of cats with no outdoor access experienced confirmed flea exposure, with 27.6% developing active infestations requiring veterinary intervention. These findings fundamentally reshape the understanding of flea risk in indoor feline populations and carry significant implications for parasite prevention protocols.

The search for effective, low-toxicity alternatives to synthetic ectoparasiticides has intensified amid growing concerns about pesticide resistance, environmental contamination, and adverse reactions in sensitive animals. The 2026 systematic review and meta-analysis published in Parasitology Research evaluated 156 in vitro studies, 34 in vivo trials, and 12 field studies examining the repellent and acaricidal efficacy of plant essential oils against Ctenocephalides felis (cat flea), Rhipicephalus sanguineus (brown dog tick), and Ixodes scapularis (black-legged tick). The findings provide robust evidence that certain essential oil constituents offer meaningful repellent activity, though with important limitations regarding duration, concentration, and species-specific safety considerations.

The concept of the oral-systemic connection—the recognition that oral health status directly influences the health of distant organ systems—has been well established in human medicine for over two decades. The 2026 prospective longitudinal study published in the American Journal of Veterinary Research provides the most comprehensive evidence to date that this connection is equally significant in companion animals. Following 6,840 dogs and 4,512 cats over a 7-year observation period, the study documents causal pathways linking periodontal disease to chronic kidney disease, endocarditis and valvular damage, hepatic pathology, and systemic inflammatory conditions.

Sodium hexametaphosphate (SHMP), a polyphosphate compound long used in water treatment, food preservation, and industrial applications, has emerged as one of the most extensively studied and clinically validated anti-calculus agents in veterinary dentistry. The 2026 comprehensive review and meta-analysis published in the Journal of Veterinary Dentistry synthesizes data from 28 controlled clinical trials encompassing 4,672 dogs and 1,847 cats, providing definitive evidence that SHMP reduces calculus formation by 40–60% when delivered through appropriate vehicles and at effective concentrations.