10. Mixed dentition-1st stage

Aug 19, 2020 · 3m
10. Mixed dentition-1st stage
Description

STAGES OF MIXED DENTITION :- FIRST TRANSITION STAGE [ 6 – 8 ]  Erupting — C1, L1, 1st Molars  Anomaly — anterior open bite o — retrognathic mandible...

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STAGES OF MIXED DENTITION :-

FIRST TRANSITION STAGE [ 6 – 8 ]

 Erupting — C1, L1, 1st Molars
 Anomaly — anterior open bite
o — retrognathic mandible (12-14)
o — ∴ transient class 2
 At 8.5yrs old, there will be equal no of primary and permanent teeth in the mouth,
 Centrals, laterals and 1st molars-permanent
 Canines, 1st molar, 2nd molar-primary
 Incisal Liability
o Maxilla — 7mm
o Mandible — 5mm
 ∴ avg I L = 6 mm
 How is I L Obtained:
o utilising the physiologic spaces
o proclination of anterior
o increase in the inter – canine width
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Information
Author Dr.Mayakha Mariam
Organization Dr.Mayakha Mariam
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