👉 A split-mouth is a rare condition that occurs when there is an opening or gap in the mouth, typically due to a broken tooth. It can be caused by a variety of factors, such as a severe injury to the jaw or a traumatic event like an accident. The split-mouth is often described as appearing like a small slit or notch on the upper lip, which may be visible when you bite down and look into your mouth from the side. The opening in the mouth can also be seen by
