What is a common symptom of dental disease in pets?

Bad breath, or halitosis, is a common symptom of dental disease in pets due to the presence of bacteria and plaque buildup in the mouth. As dental disease progresses, the decay and infection can lead to an unpleasant odor that emanates from the pet's mouth, indicating that there are underlying oral health issues. This symptom may be among the first noticed by pet owners, as it can be quite distinct and alarming.

While excessive barking, vomiting, and feeding difficulties can occur for various reasons in pets, they are not as specifically associated with dental disease as bad breath is. Excessive barking can be attributed to behavioral issues, while vomiting can result from a range of gastrointestinal problems. Although feeding difficulties can arise from oral pain caused by dental issues, they are less direct and more variable compared to the unmistakable presence of bad breath as a symptom of dental disease.