Overbite itself does not directly cause big lips. However, the underlying skeletal structure that contributes to an overbite can sometimes influence the appearance of the lips.
Here's a breakdown:
- Overbite: An overbite occurs when the upper front teeth protrude significantly over the lower front teeth. This can be caused by various factors, including genetics, jaw size, and tooth development.
- Lip Appearance: The size and shape of lips are primarily determined by genetics and soft tissue development. While an overbite doesn't directly enlarge lips, it can indirectly affect their appearance in a few ways:
- Lip Position: An overbite can cause the upper lip to protrude more prominently, creating the illusion of larger lips.
- Muscle Tension: The constant pressure from the overbite can lead to muscle tension in the face, potentially influencing the shape and fullness of the lips.
- Facial Structure: Individuals with overbites often have a more forward-projected jaw, which can make their lips appear more prominent.
It's essential to remember that the relationship between overbite and lip appearance is complex and varies from person to person. While an overbite might contribute to a perceived fullness of the lips, it's not the sole cause.