What is a common sign that an animal may have a dental problem?

Bad breath, or halitosis, is a common sign of dental problems in animals. This condition often arises due to the buildup of bacteria in the mouth, which can lead to periodontal disease, tooth decay, infections, or other dental issues. When these problems occur, they create foul-smelling compounds that result in noticeable bad breath.

In the context of veterinary practice, recognizing bad breath as a symptom can prompt further examination of an animal's oral health. Early identification of dental issues through signs like this is crucial, as dental diseases can significantly affect an animal's overall health and quality of life. Neglecting these signs can lead to more severe health complications.

While increased appetite, excessive barking, and increased energy may be associated with various health issues, they are not specifically indicative of dental problems, making bad breath the most relevant and telling sign in this context.