Approximately when do about 80% of dogs begin showing signs of gum disease?

• A. Age two
• B. Age three
• C. Age four
• D. Age five

Answer: (B)

Gum disease reaches a noticeable level in most dogs as they reach early adulthood. By around three years old, roughly 80% of dogs show signs of dental disease. This reflects how quickly plaque and tartar accumulate and trigger gingival inflammation, which, if not managed, can progress to more serious periodontal disease affecting tooth support and even overall health. Recognizeable signs include bad breath, red or swollen gums, bleeding gums, visible tartar, and reluctance to chew or eat on one side. Preventive care matters: regular tooth brushing, dental-chew options, and routine professional cleanings help slow or prevent this progression. Compared with younger ages, three years is the point where the prevalence crosses the 80% mark; later ages will also show disease, but the statistic highlights that many dogs already have signs by this age.