4. Maxillary denture 3
Aug 29, 2020 ·
3m 56s
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Description
Hamular Notch / Pterygomaxillary notch - Depression distal to the maxillary tuberosity - Used as a landmark for posterior extension of the maxillary denture RECORDS ON THE IMPRESSION – Anatomical...
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Hamular Notch / Pterygomaxillary notch
- Depression distal to the maxillary tuberosity
- Used as a landmark for posterior extension of the maxillary denture
RECORDS ON THE IMPRESSION – Anatomical Structures
1. Ant. vibrating line
2. Post. Vibrating line important
3. Hamular notch
4. Fovea palatine --------- least important
NB : PPS is marked on cast using – Lecron’s carver*
PARTS OF PPS:
- PPS area
- Pterygomaxillary area
Ant. Vibrating Line Post. Vibrating Line
BORDERS OF PPS:
- Ant vibrating line
- Post vibrating line
- Hamular notch
- Fovea palatine
FUNCTION OF PPS:
- Improves retention
- Completes the border seal of the maxillary denture
- Compensation of polymerization shrinkage
- Prevent food lodgement
NB : If food lodgement is not prevented – causes gag reflex – glossopharyngeal nerve involved here
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- Depression distal to the maxillary tuberosity
- Used as a landmark for posterior extension of the maxillary denture
RECORDS ON THE IMPRESSION – Anatomical Structures
1. Ant. vibrating line
2. Post. Vibrating line important
3. Hamular notch
4. Fovea palatine --------- least important
NB : PPS is marked on cast using – Lecron’s carver*
PARTS OF PPS:
- PPS area
- Pterygomaxillary area
Ant. Vibrating Line Post. Vibrating Line
BORDERS OF PPS:
- Ant vibrating line
- Post vibrating line
- Hamular notch
- Fovea palatine
FUNCTION OF PPS:
- Improves retention
- Completes the border seal of the maxillary denture
- Compensation of polymerization shrinkage
- Prevent food lodgement
NB : If food lodgement is not prevented – causes gag reflex – glossopharyngeal nerve involved here
Information
Author | Dr. Mayakha Mariam |
Website | - |
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