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1. PROFILE ANALYSIS
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INDIAN DENTAL ACADEMY
Leader in continuing dental education
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2. PROPORTIONAL ANALYSIS
IDEAL PROFILE PROVIDES A
BASIC STANDARD FOR
ASSESSMENT OF AVERAGE
PROFILE
PROFILE CAN BE DIVIDED
INTO THREE PARTS
FRONTAL THIRD ( Tr- N )
NASAL THIRD (N - Sn )
GNATHIC THIRD ( Sn – Gn )
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3. PROPORTIONAL ANALYSIS
ANTERIOR FACE CAN BE
PROPORTIONED ( N – Gn )
MIDFACE - N TO Sn - 45%
LOWER FACE – Sn TO Gn -55%
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4. SUBTENLYS ANGULAR PROFILE ANALYSIS
SKELETAL PROFILE ( N- POINT A - Pog ) AVG VALUE - 175
O
CONVEXITY DECREASES WITH AGE
SOFT TISSUE PROFILE ( N
I
– Sn – Pog
I
) AVG VALUE – 161
O
CONVEXITY DOES NOT CHANGE WITH AGE
FULL SOFT TISSUE ( N
I
– No – Pog
I
) AVG VALUE -137
O
(M) & 133
O
(F)
CONVEXITY INCREASES WITH AGE
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5. BOWKER AND MEREDITH STUDIES ON SOFT TISSUE THICKNESS
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6. SUBTENLYS PROFILE THICKNESS ANALYSIS
SOFT TISSUE THICKNESS AT THE GLABELLA REMAINS CONSTANT
THICKNESS OF SULCUS LABRALE SUPERIUS INCREASES BY
APPROXIMATELY 5 mm
THICKNESS OF SULCUS LABRALE INFERIUS INCREASES BY
APPROXIMATELY 2 mm
ACCORDING TO SUBTENLY THERE IS A GREATER INCREASE IN
MAXILLARY THAN THE MANDIBULAR SOFT TISSUE PROFILE WHICH
EXPLAINS WHY THE SOFT TISSUE GROWS MORE CONVEX WITH AGE
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7. BURSTONE TABLE FOR THICKNESS OF SOFT TISSUE ( AT AGE 12 )
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8. PROFILE ANALYSIS BY A.M. SCHWARZ (1929)
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9. GNATHIC PROFILE FIELD
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10. AVERAGE FACE - Sn on Pn
RETRO FACE - Sn
behind Pn
ANTE FACE - Sn ahead
of Pn
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11. STRAIGHT RETRO FACE
- DISPLACEMENT OF Pog
WITH Sn POSTERIORLY
- GPF PARALLEL AND
POSTERIOR TO
AVERAGE FACE
STRAIGHT ANTE FACE
- DISPLACEMENT OF Pog
WITH Sn ANTERIORLY
- GPF PARALLEL AND
ANTERIOR TO
AVERAGE FACE
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12. OBLIQUE RETRO FACE – POSTERIOR ROTATION OF AVG FACE. MAXILLA
POSITIONED POST AND MAND EVEN MORE POST
AVERAGE FACE ,GNATHIC PROFILE SLANTING BACKWARDS - BACKWARD
ROTATION OF THE PROFILE IS PARTLY COMPENSATED BY FORWARD
DISPLACEMENT OF MIDFACE, THEREFORE Sn AVG POSITION
RETROFACE GNATHIC PROFILE SLANTING BACKWARD- COMBINED EFFECT
OF BACKWARD ROTATION AND MARKED FORWARD DISPLACEMENT OF
THE MIDFACE
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13. OBLIQUE ANTE FACE- FORWARD ROTATION OF AVG FACE, MAXILLA IS
ANTERIOR AND MANDIBLE EVEN MORE ANTERIOR.
AVERAGE FACE , GNATHIC PROFILE SLANTING FORWARD – FORWARD
ROTATION OF PROFILE IS COMPENSATED BY BACKWARD DISPLACEMENT
OF THE MIDFACE, Sn IN AVG POSITION
RETROFACE , GNATHIC PROFILE SLANTING FORWARD – COMBINED EFFECT
OF FORWARD ROTATION AND MARKED BACKWARD DISPLACEMENT OF
MIDFACE www.indiandentalacademy.com

14. AVG FACE RETRO FACE ANTE FACE
CLASS II MALOCCLUSION
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15. CLASS III MALOCCLUSION
AVE FACE RETRO FACE ANTE FACE
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16. Thank you
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