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           How is growth velocity affected by variations in maturational stage?

               The mid-to-late childhood and adolescent periods of development
                are associated with widely varying rates of skeletal development.  
                The relative amounts of growth velocity that a developing individual
                demonstrates is directly related to the amounts of downward and 
                forward maxillary and mandibular growth that is exhibited.  This is 
                of particular significance to the clinician since growth related
                mechanics depends on good to excellent correlation with growth timing
                and growth amounts.  Growth rate (velocity) by definition is a factor
                of the incremental amount of growth per unit of time.

               The following chart depicts the general growth curve that individuals 
                express.  The shape of the curve varies relative to the maturational
                level (advanced vs. average vs. delayed) of the patient.

          The following general characteristics are associated with the 
            developmental periods:
                   Late childhood      ( SMI F to K )  - 
low growth velocity 
                   Early adolescence ( SMI 1 to 4 )   - 
accelerating growth velocity
                   Mid-adolescence   ( SMI 4 to 8 )  - 
high growth velocity
                   Late adolescence   ( SMI 8 -11 )    - 
decelerating growth velocity

                All of the above factors vary relative to the 23 stages and
                 14 levels of maturation. The GrowthTek Patient Report                    
                 evaluates the specific developmental factors regarding your

                 patient's unique maturational profile.

Variations in
    growth velocity



             Note: refer to the 'Clinical Applications' section of this web site
                            for pertinent information regarding rational timing of treatment
                            relative to growth velocity.

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