anatomic landmarks for b.d.s students
TRANSCRIPT
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DENTURE BEARING AREAS
• Supporting structures - primary stress bearing areas - secondary stress bearing areas - relief areas• Peripheral seal areas• Limiting structures
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MAXILLARY ARCH
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Limiting structures• Labial frenum• Labial vestibule• Buccal frenum• Buccal vestibule• Hamular notch• Posterior palatal seal area
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Support areas
• PRIMARY
-Posterior ridge
-Flat part of hard palate
• SECONDARY
-Slopes of ridges
-Anterior ridge
-Palatine rugae
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RELIEF AREAS
• INCISIVE PAPILLA
• MID PALATINE RAPHE
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LABIAL FRENUM
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BUCCAL FRENUM
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Labial vestibule
•Labial flange
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Buccal vestibule
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Hamular notch
Area of hamular notch
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Vibrating line:
• ..
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Fovea Palatinae
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POSTDAM AREA
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Maxillary tuberosity.
Area of tuberosity
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Hard palate
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RESIDUAL ALVEOLAR RIDGE
Alveolar groove
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Rugae.• .
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Incisive papilla.
•Incisive fossa
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•.
Median palatine raphae.
Median palatine groove
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MANDIBULAR ARCH
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PERIPHERAL STRUCTURES
• Labial frenum• Labial vestibule• Buccal frenum• Buccal vestibule• Alveololingual sulcus• Retromolar pads
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SUPPORT AREAS
• PRIMARY
• Buccal shelf area
• Posterior ridge
• Pear shaped pad (levin)
• SECONDARY
• Anterior ridge
• Slopes of ridge
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RELIEF AREAS
• Crest of ridge• Mental foramen• Genial tubercles• Torus mandibularis
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Buccal frenum.
Buccal notch.
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Labial vestibule.
• Muscles attachment close to the crest of the ridge- limits the denture flange extension.
• Mucolabial fold limits the depth of the flange.
• Record adequate depth and width.
• Proper contouring gives optimal esthetics.
Labial flange
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Buccal vestibule.
.Buccal flange
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Retromolar pad.
Retromolar fossa
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Lingual frenum.
Lingual notch
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Alveolo-Lingual sulcus.
Lingual flangePremylohyoid
eminence
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Retromylohyoid space.
• .Retromylohyoid eminence
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Genial tubercles.
• .
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Buccal shelf
• .
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Residual Alveolar ridge
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