← All decks
The first 25 slides, exactly as they appear. The full deck has 62 content slides.
Maxillofacial Surgery
Mentolabial (Labiomental) Fold
Built from Facial Aesthetics — Concepts and Clinical Diagnosis
What’s inside
7 sections · 62 slides
Overview
- What this covers
The fold itself
Names, borders and why the lower face depends on it
- The lower face in a Leonardo study head
- What the fold is
- Why a small crease matters
Measuring the fold
Depth in millimetres, and the angle between lip and chin
- How fold depth is measured
- 4 ± 2 mm
- Reading the depth figure
- The mentolabial angle
- ~130°
- Splitting the angle in two
- The two halves side by side
- A crucial point before reducing a big chin
- Lower lip inclination and the result of chin reduction
- What that figure is telling you
What sets the angle
Soft tissue, skeleton and teeth all pull on the same crease
- Three groups of causes
- Soft tissue: the lip itself
- Lip seal, mentalis and a flattened fold
- How a straining lip erases the fold
- More chin projection, smaller angle
- Skeletal causes
- Lower face height and the angle
- Which fold suits which face
- Teeth: the incisors move the lip
- Where B-point sits
- Upper incisors everting the lower lip
- Everything that pulls on one crease
- What advancing the chin does to the fold
Attractiveness and position
What people prefer, and where the deepest point sits
- How the preferred angle was tested
- 107°-118°
- Reading those findings
- When people wanted surgery
- Where the deepest point of the fold sits
- “
Planning treatment in Class II
Why the fold decides between two very different operations
- The fold as a diagnostic criterion
- The ideal pathway for such patients
- Why patients choose the shortcut
- What mandibular advancement surgery changes
- Four gains from moving the whole jaw
- How the surgery lengthens a short lower face
- What isolated advancement genioplasty leaves behind
- The two operations compared
- The line that only jaw surgery crosses
Genioplasty and the fold
Direction and amount of chin movement, read off the crease
- What a genioplasty actually is
- Rosen's contribution
- Direction of movement decides the fold
- Using vertical height as the brake
- The real deformity is usually the jaw
- Two long lower faces that need opposite plans
- Long lower face suited to genioplasty
- Long lower face where genioplasty is avoided
- Same long face, opposite plans
- The book's Class II patterns table
- Class II fold pattern: excessively deep fold
- Class II fold pattern: excessively deep fold (continued)
- Class II fold pattern: considerable variability
- Class II fold pattern: attenuated, shallow, effaced fold
- Class II fold pattern: deep, exaggerated fold
- Takeaways: describing the fold
- Takeaways: using the fold
- References
- References (continued)
- Facial Aesthetics: Concepts and Clinical Diagnosis, 2nd Edition