What can be a serious consequence of untreated dental disease in pets?

Untreated dental disease in pets can lead to serious health consequences, particularly systemic infections. The bacteria that accumulate in the mouth due to periodontal disease can enter the bloodstream and affect various organs, such as the heart, liver, and kidneys. This can result in conditions like endocarditis, which is an infection of the heart's inner lining, or can exacerbate existing health problems.

While behavioral changes and weight loss can also be consequences of untreated dental issues, they are typically secondary effects. Pets may experience discomfort or pain from dental disease, leading to changes in their behavior, such as withdrawal or aggression, and they may avoid eating due to pain, resulting in weight loss. However, these are not as immediate or potentially life-threatening as systemic infections, which directly pose significant risks to overall health and can lead to severe complications.

Improved overall health, of course, is not a possible consequence of untreated dental disease, as the condition generally leads to a decline in health instead. Thus, systemic infections stand out as the most serious consequence of neglecting dental care in pets.