Vertical skeletal pattern
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Vertical skeletal pattern. Different way to assess vertical skeletal pattern lower anterior face height Frankfort mandibular plane angle. Skeletal pattern (Vertical : LAFH). Lower Anterior Facial Height (LAFH). Is used to assess vertical dimension

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Vertical skeletal pattern
Vertical skeletal pattern

  • Different way to assess vertical skeletal pattern

    • lower anterior face height

    • Frankfort mandibular plane angle



Lower anterior facial height lafh
Lower Anterior Facial Height (LAFH)

  • Is used to assess vertical dimension

  • Ratio of the LAFH to the total face height gives an indication if the LAFH is within normal limits

  • Facial proportion (LAFH %)

    = MxPl to Me x 100

    MxPl to Me + MxPl to N

    = 55% ± 2%


Frankfort mandibular plane angle fmpa
Frankfort mandibular plane angle (FMPA)

  • It measures the relationship between LAFH and posterior face height

  • Normal: mandibular and frankfort lines intersect in occipital region

  • Increased:anterior to occipital region

  • Reduced:posterior to occipital region


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