Increased Lower Face Height (LFH)

- The lower jaw has grown too much vertically
- The lower face height is increased
- So the distance from chin to nose is too long and that makes it difficult to keep the mouth closed
- Jaw surgery can correct this
- In most cases both lower and upper jaw surgery are needed
- These operations are called BSSO with closing rotation (lower jaw) & Le Forte I with vertical impaction (upper jaw)