What dog breeds are prone to developing a double row of teeth?

Beagles, Chihuahuas, and Yorkshire Terriers are more likely to develop a double row of teeth because their short, wide skulls leave little space between teeth, so a double row forms along the upper and lower jaws. In addition, calcium-deficient puppies are also prone to it. During teething, insufficient calcium intake can affect normal tooth growth and cause a double row. To reduce the risk, make sure the dog receives balanced nutrition.