General factors which would influence and tend to favour mandibular prognathism are as follows:
• Increased height of the ramus
• Increased mandibular body length
• Increased gonial angle
• Anterior positioning of the glenoid fossa
•Decreased maxillary length
• Posterior positioning of the maxilla in relation to the cranium
• Prominent chin button
•Varying soft-tissue contours
Source- textbook of oral pathology Shafers and Google images
Source- textbook of oral pathology Shafers and Google images
Double lip
Ascher syndrome
Double lip with blepharochalasis
Source – textbook of oral pathology Shafers and Google images
Histopathology
•When tooth eruption is impeded, surgical removal of the excessive tissue and exposure of the teeth are indicated.
•The cosmetic appearance may also require surgical excision.
•The lesion sometimes recurs. It has been reported that tooth extraction alone will cause the tissues to shrink almost to normal and that recurrences can be prevented by this.
Source- textbook of oral pathology Shafers and Google images
Accessory nipples Popleiteal webs Hirschsprung disease Surgical treatment of van der Woude syndrome
Source- textbook of oral pathology Shafers and Google images
Commisural pits Lip pits
Source- textbook of oral pathology Shafers and images from Google