classification of soft palate and residual ridge

classification of soft palate based on morphological varities and angulation with hard palate
classification of residual ridge shape form and mucosa

1. CLASSIFICATION OF CLASSIFICATION OF
SOFT PALATESOFT PALATE
ANDAND
RESIDUAL RIDGE: RESIDUAL RIDGE:
SHAPE, FORM,SHAPE, FORM,
MUCOSA MUCOSA
SANAA SANAA
ASDC 49ASDC 49

2. SOFT PALATESOFT PALATE

4. MORPHOLOGICAL VARIETIESMORPHOLOGICAL VARIETIES
(based on cephalometric studies)(based on cephalometric studies)
Type1: Leaf Type1: Leaf shaped
Type2: Rat tail shapedType2: Rat tail shaped
Type3: Straight lineType3: Straight line
Type4: S-shapeType4: S-shape
Type5: Crook shapedType5: Crook shaped

5. Continued…Continued…
TYPE 1: Leaf shapedTYPE 1: Leaf shaped TYPE 2: Rat-tail shaped TYPE 2: Rat-tail shaped

6. Continued…Continued…
TYPE 3: Straight lineTYPE 3: Straight lineTYPE 4:”S” shapedTYPE 4:”S” shaped

7. Continued…Continued…
TYPE 5:Crook shapedTYPE 5:Crook shaped

8. Classification: Based on the Classification: Based on the
Angulation between Hard and Angulation between Hard and
Soft PalateSoft Palate
Class I: Soft Palate is almost horizontalClass I: Soft Palate is almost horizontal
Class II: Soft Palate turns downwards atClass II: Soft Palate turns downwards at
an angle of 45an angle of 45
00
from hard Palate from hard Palate
Class III: Soft Palate turns downwardsClass III: Soft Palate turns downwards
sharply at an angle of 75sharply at an angle of 75
00
from from
hard Palatehard Palate

9. RESIDUAL RIDGERESIDUAL RIDGE

11. SHAPESHAPE

12. FORMFORM
I: I: Pre-extractionPre-extraction
II: II: Post extractionPost extraction
III: III: High, well roundedHigh, well rounded
IV: IV: Knife edgeKnife edge
V: V: Low, well roundedLow, well rounded
VI: VI: DepressedDepressed

13. MUCOSAMUCOSA
Type: Masticatory mucosaType: Masticatory mucosa
Mucous membrane covering Crest of the Mucous membrane covering Crest of the
RidgeRidge
Mucous membrane covering Slopes of Mucous membrane covering Slopes of
the Ridge the Ridge
Firm and resilient mucous membraneFirm and resilient mucous membrane
Flabby and hyper-mobile mucous Flabby and hyper-mobile mucous
membranemembrane

14. Flabby RidgeFlabby Ridge