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FACIAL BIOTYPE, VERT CALCUL, Extreme growth rotation, GROWTH SPURT EARLIER…
FACIAL BIOTYPE
BJÖRK METHOD
4) INCLINATION SYMPHYSIS
Sagittal
Short Wide (better)
Vertical
Narrow Elongated :red_cross:
5) INTERINCISAL ANGLE
Sagittal
HIGHER angle
Vertical
Lower angle :red_cross:
3) SHAPE LOWER BORDER MANDIBLE
Sagittal
Straight/Convex
Counter Clockwise :check:
Vertical
Concave
Clockwise :red_cross:
6) SYMPHYSIS-MOLARS
Sagittal
Similar Height :check:
Vertical
< height at Molars :red_cross:
2) CURVATURE MANDIBULAR CANAL
Sagittal
Curved
BRAQUIFACIAL (better)
Vertical
Straight
DOLICOFACIAL :red_cross:
7) ANTERIOR LOWER FACIAL HEIGHT
Sagittal
<
Vertical
>
1) INCLINATION CONDYLAR HEAD
Vertical
Clockwise rotation :red_cross:
Horizontal
Upright
Counter Clockwise rotation :check:
3 TYPES
DOLICHOFACIAL
Verical
ANTERIOR HEIGHT> POSTERIOR
CLOCKWISE
>
Angles
CONVEX Profile
Divergent Planes
Muscle HYPOTONIA
CLASS 2 DIV 1 = OJ
Open Bite
Lack Labial Seal
Deglutition Bad
Morphotype
ECTOMORPHIC TAPPERED AC TRIANGULAR T.
BRACHYFACIAL
SAGITTAL
SHORT WIDE
< ANGLES EXCEPT Interincisal Angle >
SQUARED mandible WIDE arch
CLASS 2 DIV 2 = OB
CONCAVE Profile
< Lower Third
Anterior HEIGHT < Posterior
Convergence / Paralellism
DEEP mentolabial Sulcus
Curved Mandibular Canal
Prominent Chin
Muscle HYPERTONICITY
DIASTEMAS
Retroclined Incisors
Morphotype
ENDOMORPHIC SQUARED AC BARREL SHAPE T.
MESOFACIAL
Normality Equilibrium Vertical/Sagittal...
Ratio Tr-Me/Bizygomatic
1.30 Female
1.35 Male
SN.GOGN
32°
SNGn
66°
GONIAL
120°
MENTOLABIAL
120-140°
Class 1
Mesomorfic body PARABOLIC Arch Shape SQUARE Teeth
PREDICTION
VERT INDEX
3) FACIAL AXIS
Facial Axis + Base of the Skull Plane
Mandibular Growth Direction?
90° +- 3°
4) LOWER FACIAL HEIGHT
Anterior Nasal Spine + Center Ramus + Promenton
Open Bite SKELETAL OR DENTAL?
47° +- 4°
(NO MOD. WITH YEARS) :check:
2) MANDIBULAR PLANE ANGLE
Francfort + Mandibular Plane
Mandibular Rotation = Clockwise or counter?
26° +-4°
0,3° per Y
5) MANDIBULAR ARCH
Condyle AXIS + Posterior Corpus Axis
26° +-4°
3° every 5Y
1) FACIAL CONVEXITY
Facial plane + Francfort Plane
Mandibular position in SAGITAL PLANE?
87°+- 3°
0,3° per Y
VERT CALCUL
< or = -2
SEVERE Dolicho
-0.4 to 0.4
Meso :check:
-0.9 to -0.5
LIGHT Dolicho
-1.9 to -1
Dolicho
0.5 to 0.9
Brachy
>
or = 1
SEVERE Brachy
Extreme growth rotation
GROWTH SPURT EARLIER :warning: