There are many benefits of wearing a mouthguard, especially for lilac French bulldogs. These animals have a wide lower jaw which can collide with other objects, resulting in teeth damage or even injury. Mouthguards also help to protect against tooth decay and gum disease. There are a few things to consider before purchasing a mouthguard for your Lilac. The size of the dog's mouth will be one factor to consider; most types of mouthguards fit dogs between the ages of 7 and 14 weeks, but they will gradually grow in size as the dog matures. The type of material used in the construction of the guard also matters: silicone is preferred because it's comfortable and doesn't cause skin irritation.